Jaw position correction device having function for improving facial appearance

Abstract

Provided is a jaw position correction device comprising lateral dentition arrangement sections, a first pressing force generation section, second pressing force generation sections, and resultant force transmission sections, wherein: (1) the lateral dentition arrangement sections are each arranged, when being worn, along the palate side of each of the right and left maxillary dentitions of a wearer (patient), in which the longest region corresponds to a region from a canine to a second premolar; (2) the first pressing force generation section includes pressing force transmission sections and a pressing force source in the vicinity of the hard palate, and is connected to the right and left lateral dentition arrangement sections; (3) the second pressing force generation sections are present at connection sections between the right and left lateral dentition arrangement sections and the right and left first pressing force transmission sections, and generate, as second pressing forces, forces that increase the rearward angles formed by the connection sections; (4) the resultant force transmission sections include bending redundant sections that are connected from the distal ends of the lateral dentition arrangement sections, and mounting and fixing sections that are connected to the bending redundant sections and that have a function of being fixed to the maxillary molars; and (5) it is possible to transmit the resultant force of the first and second pressing forces to the maxillary molars via the mounting and fixing sections. It has been found that using said jaw position correction device generates early contacts accompanied by cuspal interferences in the maxillary molars, and, as a result, the jaw position of the patient is reset to a relaxed state, the facial appearance is improved, and the maxillary protrusion can be alleviated.

Description

Jaw position correction device with facial improvement function 【0005】 【0001】 The present invention relates to a jaw position correction device used in orthodontic treatment. 【0002】 Among the three major dental diseases, there are dental caries (cavities), periodontal disease, and malocclusion. Orthodontic treatment aims to treat malocclusion. Malocclusion refers to a state where the teeth are uneven and the bite is poor. Orthodontic treatment aims to slowly move the teeth by applying force to the cervical or crown part of the teeth using a correction device, and to correct the tooth alignment and bite. 【0003】 <General orthodontic treatment> General orthodontic treatment not premised on current surgery is as follows. 1. Initial consultation and counseling: Evaluate the tooth alignment and bite, etc., and consider the necessity and method of treatment. 2. Detailed examination: Examine the specific conditions of the teeth and jaws in detail by looking at dental impressions and X-rays. This provides information for formulating a treatment plan. 3. Formulation of a treatment plan: Based on the examination results in 2, formulate a plan for how to proceed with orthodontic treatment. Determine the treatment goals, duration, device to be used, necessity of tooth extraction, etc. 4. Consideration and installation of the device: Select a device (bracket, wire, transparent mouthpiece, etc.), design it, and then install it on the patient. This gradually moves the teeth (start of dynamic treatment). 5. Regular adjustment: Adjust the device at regular intervals. Advance the tooth movement by replacing the wire and adjusting the bracket, etc. 6. Daily care: Provide guidance on toothbrushing and flossing during orthodontic treatment, and keep the oral cavity and the device clean. 7. Completion and retention of dynamic treatment: When the tooth alignment approaches the goal, complete the dynamic treatment. Then, use a retention device to observe and manage the occlusion together with regular oral hygiene management to stabilize the tooth position. 【0004】 Currently, the "Guidelines for Standard Treatment in Orthodontic Treatment" has been publicly available on the web by the Japan Society of Orthodontics, a public interest incorporated association (Non-Patent Document 1), and furthermore, the guidelines regarding "maxillary protrusion" particularly related to the present invention have also been publicly available on the web (Non-Patent Document 2). <000Orthodontic treatment is carried out in accordance with the above 4-7. In the maxillary dentition, during the active treatment period described in 4-6 above, the following steps are generally performed: (1) leveling, (2) distal movement of the canines, (3) posterior movement of the incisors, and (4) final finishing. After that, the long-term retention treatment described in 7 above is performed. 【0006】 <Approach to Temporomandibular Joint Disorder (TMJ)> As mentioned in point 1 above, when undergoing orthodontic treatment, counseling is conducted, and a check for TMJ is performed at that time. In most cases, TMJ is the responsibility of oral surgery, and if TMJ treatment is necessary, the patient will receive the prescribed treatment for TMJ at the oral surgery department, namely splint therapy, manual therapy, surgical treatment (operation), etc. Orthodontic treatment is usually performed after these treatments are completed. 【0007】 <Prior Art> Patent Document 1 describes an orthodontic appliance that includes a first extension wire and a second extension wire that contact the proximal and distal portions, and a palatal arch wire that contacts the palate. This orthodontic appliance corrects the outer shape of the patient's (wearer's) palate by applying corrective forces to the patient's (wearer's) alveolar complex (DAC) in the buccal, labial, and lateral directions, that is, by applying forces that expand the entire dental arch from the inside out. This is an orthodontic appliance used in the leveling stage of the above treatment procedure (1). 【0008】 The orthodontic appliance described in Patent Document 2 is characterized in that a first member, which is arranged along the inner side surface of a tooth or dental arch and is solely for applying orthodontic force to the tooth or dental arch, and a second member, which holds, attaches, or reinforces the first member, are integrally constructed from the same material. The orthodontic appliance described in Patent Document 2 is preferably made of a superelastic shape memory alloy such as Ni-Ti, and is mostly plate-shaped (with a rounded rectangular or semi-circular cross-section), but it is disclosed that the thickness may differ in parts, or that some parts (such as the second member) may be shaped to cover the upper part of the tooth. 【0009】The orthodontic device of Patent Document 3 is an orthodontic device comprising an archwire attached to the outside of the dental arch and an expander attached to the archwire to apply force to the dental arch for orthodontic treatment, wherein the expander is provided with a biasing body having a larger radius of curvature than the dental arch and applying an outward biasing force to the dental arch when locked to the archwire at each posterior end of the lateral dental arch, an arm portion extending tangentially in the mesial direction from the end of the biasing body and applying a second biasing force when its tip is locked to the archwire at the anterior end of the lateral dental arch, a first mounting portion that locks at the posterior end position, and a second mounting portion that locks at the anterior end position of the arm portion, and is an orthodontic device for laterally expanding the lateral dental arch. 【0010】 Patent Document 4 discloses a dental retainer that can relieve pressure on the perioral muscles that can lead to relapse after orthodontic treatment, saves on material costs, improves wearability by reducing the amount of synthetic resin, and is aesthetically superior by minimizing the exposure of the metal support portion. Patent Document 4 discloses an embodiment that includes a reinforcing wire containing an omega-shaped loop for adjustment by lateral expansion and contraction. 【0011】 The orthodontic appliances or dental retainers disclosed in these prior art documents are all dental instruments used as part of orthodontic treatment, and their use for the purpose of correcting jaw position is neither disclosed nor suggested. In other words, the problems addressed by these prior art documents and the present invention are fundamentally different, and the solutions for improving jaw position in the present invention (described later) are neither disclosed nor suggested. Patent documents 1 and 2 will be discussed separately. 【0012】 Japanese Patent Publication No. 2014-526340 (WO2013 / 040144), Japanese Patent Publication No. Hei 8-299367, Japanese Patent Publication No. 2006-42963, Japanese Patent Publication No. 2003-38520 【0013】Japanese Orthodontic Society Clinical Practice Guideline Drafting Committee, "Guidelines for Standard Treatment in Orthodontic Treatment," [online], September 12, 2022, Japanese Orthodontic Society, [Retrieved August 31, 2023], Internet <URL: https: / / www.jos.gr.jp / asset / public2022_0912.pdf> Japanese Orthodontic Society Clinical Practice Guideline Drafting Committee, "Guidelines for Orthodontic Treatment: Maxillary Protrusion Edition," [online], April 2014, Japanese Orthodontic Society, [Retrieved August 31, 2023], Internet <URL: https: / / www.jos.gr.jp / asset / guideline_maxillary_protrusion.pdf> 【0014】 In Non-Patent Document 1, under the first theme "1. Orthodontic Treatment and Orthodontists Providing It," section (a) indicates that, regarding "comprehensive orthodontic treatment," it is recognized that orthodontic treatment significantly affects not only the arrangement of teeth, but also occlusal relationships, jaw relationships, and even facial features. At the same time, Non-Patent Document 2 begins by stating that there is no truly established standard in orthodontic clinical practice, and that it is still technically and theoretically under development. 【0015】 Under these circumstances, the inventor, a dentist, recognized the following as important issues in orthodontic treatment. 【0016】 Firstly, although jaw position correction is an essential element as a prerequisite for orthodontic treatment, it is not actively incorporated into the orthodontic process. In other words, orthodontic treatment, which is mainly performed in orthodontic clinics, and treatment, which is mainly performed in oral surgery clinics, are not integrated. 【0017】If temporomandibular joint disorder (TMJ) is diagnosed during the above-mentioned counseling, orthodontic treatment is usually performed only after the TMJ treatment is completed. Furthermore, TMJ treatment is limited to patients with specific symptoms that characterize TMJ, such as joint noises (clicking sounds in the jaw), limited mouth opening (difficulty opening the mouth, jaw misalignment when opening the mouth), and jaw joint pain. In oral surgery, the primary objective is to alleviate the distressing symptoms of TMJ, and consideration for subsequent orthodontic treatment is a low priority. Moreover, except for surgical treatment, it is largely symptomatic treatment, and TMJ often recurs even after splint treatment using mouthguards. Even if orthodontic treatment is performed after such TMJ treatment (excluding surgery), if the jaw position is not fundamentally improved, relapse of the orthodontic teeth is likely to occur during the long orthodontic treatment period, including the retention period. In addition, as mentioned above, treatment related to jaw position is practically limited to patients who exhibit symptoms of TMJ, and orthodontic treatment is performed while potential jaw misalignment is left unaddressed, which is also considered one of the causes of orthodontic tooth relapse. This situation is thought to arise because oral surgery treatment is not integrated with subsequent orthodontic treatment. Furthermore, this insufficient correction of jaw position leads to various problems in orthodontic treatment. When orthodontic treatment is attempted without sufficient correction of jaw position, it leads to a treatment approach that is almost like haste, where the goal is simply to achieve the target tooth alignment and satisfy the patient. Such simplistic, linear orthodontic treatment not only results in many direct failures in orthodontic alignment, but also increases the probability of relapse once the teeth have been corrected. The inventor has spent many years investigating whether temporomandibular joint disorders, especially mild cases, can be reliably treated with orthodontic treatment. 【0018】 Secondly, the lack of consideration for the aesthetic improvement of facial appearance is also a contributing factor to the low patient satisfaction with orthodontic treatment. 【0019】In orthodontic treatment, it is important not only to improve the position and occlusion of teeth, but also to consider the harmony of the entire face. However, current orthodontic treatment lacks consideration for the aesthetic aspect, and when orthodontic treatment is carried out without an integrated perspective with cosmetic surgery, a discrepancy arises between the patient's expectations and the results. In reality, there are quite a few patients who prioritize the beauty of their facial appearance, and if such patients are not given appropriate explanations and treatment based on those explanations, the treatment goals will not match the patient's wishes, leading to dissatisfaction. 【0020】 Therefore, orthodontic treatment should require an integrated approach that takes into account the aesthetic aspects of facial appearance. 【0021】 If, during counseling, a treatment plan is created that considers not only the alignment of the teeth but also the jaw position and the overall aesthetics of the face, and integrated treatment is provided based on that plan, it should be possible to significantly improve patients' satisfaction with orthodontic treatment. 【0022】 The objective of this invention is to establish a more fundamental and effective orthodontic treatment method based on the relationship between jaw position correction and facial aesthetics in patients, and to provide an orthodontic appliance for use in this orthodontic treatment. 【0023】 The inventors of the present invention have found that remarkable treatment results can be obtained by introducing a new step (also called the jaw position and facial appearance improvement step) that performs "improvement of jaw position and facial appearance" using a jaw position correction device (hereinafter, in principle, referred to as "the orthodontic device of the present invention"), which plays a central role in "improvement of jaw position and facial appearance," as a prerequisite for orthodontic treatment, that is, before proceeding with the dynamic treatments described in (1) to (4) above, as part of orthodontic treatment, and have completed the present invention. 【0024】 In this specification, "jaw position correction device" and "orthodontic device of the present invention" include both jaw position correction devices equipped with a mounting and fixing part for fixing the jaw position correction device to the teeth, and jaw position correction devices that are not equipped with the mounting and fixing part. In some cases, jaw position correction devices that are not equipped with the mounting and fixing part may be individually referred to as "part of the jaw position correction device," "part of the orthodontic device of the present invention," and "body of the jaw position correction device." 【0025】1. Regarding the Improvement of Jaw Position The primary goal of orthodontic treatment using the orthodontic appliance of the present invention is "improvement of jaw position." In other words, "improvement of jaw position" means making the "centric relation (CR)" and the "centric occlusion (CO)" coincide. After achieving this primary goal, the second goal is to aim for the acquisition of reliable occlusal function and the realization of a beautiful dentition by applying orthodontic treatment methods tailored to the condition of each wearer's (patient's) dentition. This is the general outline of the orthodontic treatment performed by the inventor. Improvement of facial appearance is an effect that is observed in conjunction with achieving the first goal mentioned above. 【0026】 The first objective mentioned above, "improvement of jaw position," is the essence of the treatment steps using the orthodontic appliance of this invention, and therefore, we will now explain this. 【0027】 Simply saying "improvement of jaw position" doesn't mean what it actually entails. 【0028】 First, let's consider the jaw position of modern people. Based on the inventor's clinical experience, many people who come to the inventor for orthodontic treatment consultations, and even more so those who actually undergo orthodontic treatment (patients), exhibit maxillary prognathism. The movement of the mandible during chewing involves rotational movement around the temporomandibular joint, so a mechanical vector in the direction of protrusion is always acting on the teeth. In addition, modern people often have opportunities to adopt a forward-leaning posture. Generally, it is said that for every 2.5 centimeters (cm) the head moves forward from the correct position, the load on the muscle groups from the head to the neck and shoulders increases by 4 kilograms (kg). It is also said that many desk workers have their heads positioned 5-6 centimeters forward on average, and programmers 6-9 centimeters forward. This is also true for children. Thus, in addition to the original "mechanism of chewing movement," modern society, where people often adopt a "forward-leaning posture," often develops maxillary prognathism without realizing it. 【0029】Next, even if we say "maxillary prognathism," it doesn't necessarily mean that the overjet will be large. The biting force (occlusal force) of humans is very strong, even during everyday meals, it is 60 kg for adult men and 40 kg for adult women, and as the maxilla gradually protrudes, the mandible follows along with the bite. The mandible weighs about 1 kg, and it is suspended by the muscles of the temporal region, so if the position of the mandible is misaligned, it will put asymmetrical stress on the temporomandibular joint and the first cervical vertebra. Naturally, this can cause temporomandibular joint disorder and even cause general malaise throughout the body. In this way, the mandible plays the role of a balancer for a person's center of gravity. 【0030】 Considering the strong tendency for maxillary prognathism in people in modern society and the inherent physical role of the mandible, the first thing necessary for "improving jaw position" in orthodontic treatment is to "reset the mandible to its original position." Finding and guiding the correct bite to the reset mandible is what brings about "consistency between CR and CO," that is, "fundamental improvement in jaw position." The above-mentioned "resetting of the mandible to its original position" is achieved by actively generating premature contact with cusp interference between the molars of the maxilla and mandible, which govern the bite, and by creating a state in which the original bite of the maxilla and mandible in orthodontic treatment patients is as if it had been temporarily disengaged. The orthodontic device of the present invention is a jaw position correction device that efficiently and effectively performs this from the perspective of the entire orthodontic treatment. 【0031】 The idea of ​​using an orthodontic appliance to perform a "fundamental correction of jaw position, resetting the mandible to its original position, improving facial features at the skeletal level, and simultaneously adjusting the dental arch, such as improving the arrangement of the maxillary teeth, by changing the position and shape of the maxillary alveolar region and maxilla," as a preliminary step to the dynamic treatment steps in orthodontic treatment, and directly linking it to the dynamic treatment, is novel to the best of the inventor's knowledge, and no such idea or positive suggestion can be found in Patent Documents 1-4 or Non-Patent Documents 1 and 2. Furthermore, the orthodontic appliance of the present invention, created to realize this, is also novel. 【0032】2. Human Maxilla and Teeth The orthodontic device of the present invention is an orthodontic device that is attached to the maxilla. Although within the realm of common technical knowledge, we will first explain the human maxilla and maxillary teeth using drawings. 【0033】 Figure 1 is a schematic diagram of the proper oral cavity of an adult human (the part visible when the mouth is open; the space containing the tongue, teeth, periodontal tissues, etc.). In Figure 1, 1 is the nose, 2 is the upper lip, 3 is the lower lip, and 4 is the mandible. The proper oral cavity 10 is broadly divided into the maxillary portion 11 and the mandibular portion 12. The maxillary portion 11 includes the oral vestibule 111, maxillary alveolar process 112, maxillary dental arch 113, hard palate 114, soft palate 115, etc. The mandibular portion 12 includes the mandibular alveolar portion 121, tongue 122, and lower dental arch 123, etc. The orthodontic appliance of the present invention is attached to the hard palate 114 side relative to the maxillary arch 113 (see Figure 11). 【0034】Figure 2 is a schematic diagram showing a frontal view of the palatal surface, including the hard palate 114 and soft palate 115, relative to the upper jaw portion 11. The upper dental arch 113, in adults, is fundamentally composed of eight teeth on each side, unless there are missing teeth due to extraction, etc. "Right and left" refers to the right and left sides of the wearer (patient) themselves (see Figure 3). In other words, the upper dental arch 113 is composed of the central incisors (right 1131, left 1131'), lateral incisors (right 1132, left 1132'), canines (right 1133, left 1133'), first premolars (right 1134, left 1134'), second premolars (right 1135, left 1135'), first molars (right 1136, left 1136'), second molars (right 1137, left 1137'), and third molars (right 1138, left 1138'). However, the third molars (right 1138, left 1138') are so-called "wisdom teeth," and will ultimately be extracted or remain impacted in the gums for the rest of one's life. Therefore, the explanation of the present invention will, in principle, exclude the third molars and will consider only the central incisors to the second molars. The incisive papilla 117 is located directly below the palatal side of the central incisors (right 1131, left 1131'), and the transverse palatal fold 116 is located on the palatal side of the lateral incisors (right 1132, left 1132'), canines (right 1133, left 1133'), first premolars (right 1134, left 1134'), and second premolars (right 1135, left 1135') in a nearly symmetrical manner. The midline (palatine raphe) 118 extends from the incisive papilla 117 toward the posterior palatine fovea 119. The term "midline (palatine raphe)" will be used as "midline" unless otherwise specified. The boundary between tooth crowns is called the "proximal surface," and the area around the most raised part of the tooth crown is called the "crown bulge." 【0035】 Figure 3 is an explanatory diagram illustrating the directional terminology for the maxillary side. The oral side is "anterior," and the throat side is "posterior"; the direction approaching the midline of the maxillary arch is "mesial," and the direction away from it is "distal"; the inner side of the maxillary arch is "palatal," the outer side of the central incisors and canines is "labial," and the outer side of the first and second premolars is "buccal." As described in the explanation of Figure 2 and illustrated here, "right and left" refer to the right and left of the wearer (patient) themselves. Similarly, the upper and lower relationship between the palate and tongue also refers to the upper and lower of the wearer (patient) themselves, with the palatal side being "up" and the lingual side being "down." These directional terms are applied throughout this specification. 【0036】 3. Orthodontic device of the present invention <Summary> The orthodontic device of the present invention is a jaw position correction device that is attached to the maxilla, either individually or as a set, and is equipped with a lateral dental arch arrangement part, a first pressing force generating part, a second pressing force generating part, and a resultant force transmission part. 【0037】 (1) When fitted, the above-mentioned lateral dental arch placement portion is positioned along the palatal side of the maxillary dentition in the left and right maxillary dentition of the wearer (patient), in a region where the longest portion extends from the mesial interproximal surface of the canine tooth to the distal interproximal surface of the second premolar, and the shortest portion extends from the distal interproximal surface of the first premolar to the distal crown bulge of the second premolar. 【0038】 (2) The first pressing force generating portion is continuous with or connected to the right and left lateral dental arch arrangement portions at one end and includes (a) a first pressing force transmission portion that intersects with a region near a line projected onto the midline of the hard palate, which is located higher in the oral cavity than the cervical region of the area from the canine to the second premolar, or (b) a first pressing force source that intersects with the first pressing force transmission portion and the aforementioned region which is continuous with or connected thereto. 【0039】 (3) The first pressing force generating unit can generate a first pressing force in the orthodontic appliance that laterally expands the maxillary dentition or maxillary teeth in a region corresponding to the longest range from the mesial adjacent surface of the canine tooth to the distal adjacent surface of the second premolar, and the shortest range from the distal adjacent surface of the first premolar to the distal crown bulge of the second premolar, via the first pressing force transmitting unit and the lateral dentition arrangement unit. 【0040】 (4) The second pressing force generating portion is located at the continuous or connecting portion between the right and left lateral dental arch arrangement portion and one end of the right and left first pressing force transmission portion, and the force that causes the posterior angle formed by the continuous or connecting portion to widen can be generated as the second pressing force in the orthodontic appliance. 【0041】(5) The combined force transmission portion includes, on both the left and right sides, or either one, a bent redundant portion of elastic wire, one end of which is continuous with or connected to the distal ends of the left and right lateral dental arch arrangement portions, and which is positioned along the region from the palatal cervical to the root of the wearer (patient); and includes a mounting and fixing portion that is connected with or continuous with the distal side of the bent redundant portion, and is attached and fixed to both or one of the right and left maxillary molars or second premolars via the mounting and fixing portion. 【0042】 The orthodontic device of the present invention is a jaw position correction device that works by applying the pressing force generated from both or either of the first pressing force generating unit and the second pressing force generating unit to both or either of the maxillary molars or the second premolars via the combined force transmission unit, thereby moving the orientation of the crowns of both or one of the maxillary molars toward the buccal side and generating premature contact accompanied by occlusal interference between the maxillary molars and the mandibular molars. 【0043】 <Summary of Function and Effects> The orthodontic device of the present invention is an orthodontic device that has the function of "fundamentally correcting the jaw position by resetting the mandible to its original position, improving facial features at the skeletal level, and adjusting the dental arch by lateral expansion of the maxillary dentition as needed." In other words, the orthodontic device of the present invention has as its main function the fundamental correction of the jaw position, and together with this it has a cosmetic function that improves facial features at the skeletal level and a dental arch adjustment function that supports orthodontic treatment by lateral expansion of the maxillary dentition as needed. The above improvement in the arrangement of the maxillary dentition is an improvement to create the foundation for dynamic treatment and is different from the improvement of tooth axis (mainly performed in the leveling process) and posterior movement of maxillary incisors that are subsequently performed as orthodontic treatment. "Jaw position correction device" is a simplified term that focuses on "jaw position correction," which is the main function of the orthodontic device of the present invention. 【0044】 In this invention, the wearer of the orthodontic appliance is the person who is fitted by the dentist (the person who performs the fitting), or in other words, the patient who undergoes orthodontic treatment. While the terms wearer (dentist) and wearer (patient) are indicated as needed, even when such indications are not provided, the terms wearer and wearer of the orthodontic appliance of this invention are used in the sense described above. 【0045】 Briefly speaking, the maxillomandibular orthopedic device of the present invention transmits the first pressing force generated from the first pressing force generating part and the second pressing force generated from the second pressing force generating part to the upper molars etc. (mainly the first molar, rarely the second molar, very rarely the third molar or the second premolar) via the resultant force transmitting part, moves the direction of the crown of the upper molars etc. to the buccal side, and generates premature contact with occlusal interference between the upper molars and the lower molars, thereby resetting the position of the lower jaw to its original position and mainly aiming to correct the maxillomandibular position. 【0046】 First, the reason why generating premature contact with occlusal interference leads to the correction of the maxillomandibular position and the improvement of the facial appearance will be explained. Note that the "etc." for the upper molars etc. is considered in view of the fact that very rarely the second premolar may be the object of generating premature contact with occlusal interference. In the following "Means for Solving the Problems" section, for the sake of simplicity, the above "etc." may be omitted and referred to as "upper molars", but this does not mean intending to omit the upper second premolar. Unless otherwise specified, the upper second premolar is included as in the others. 【0047】 "Moving the direction of the crown of the upper molars to the buccal side" means moving all or part of the crown of the upper molars to the buccal side more than the previous state by inclining or rotating the tooth axis of the upper molars or moving the upper molars themselves. 【0048】 And due to the occlusal interference contact caused by moving the direction of the crown of the upper molars to the buccal side, a state where the occlusion between the upper and lower jaws is disengaged is generated. That is, in the present invention, while the upper and lower molars are in contact, it becomes a point contact occlusion with a reduced contact area compared to the normal surface contact occlusion state, and the state where premature contact with occlusal interference occurs between the right and left upper and lower molars is regarded as the "state where the occlusion is disengaged". 【0049】The jaw position correction device of the present invention moves the orientation of the maxillary molar crowns toward the buccal side, thereby generating point-contact cusp interference, where the functional cusps of the maxillary molars act as the cusp interference contact points. This point-contact cusp interference creates the "dislocated bite" described above. Compared to surface-contact cusp interference, this point-contact cusp interference allows for more efficient stress concentration of the occlusal forces of the masseter and temporalis muscles. Because the cusp interference contact points are functional cusps (distal or mesial cusps), sliding of the crown surfaces during occlusion due to contact between the crowns of the upper and lower molars on the cusp slopes is suppressed, preventing stress dispersion. As a result, the stress of the upper and lower molars is efficiently transmitted to the point of application. This point of application generates appropriate pressure at the posterior edge of the maxilla and plays an important structural role in efficiently moving the maxilla. 【0050】 The functional cusp of the maxillary molar that serves as the cusp interference contact point is preferably selected such that the point of stress application is located posterior to and close to the base of the zygomatic process. The combination of maxillary molar and functional cusp that satisfies this preferred condition is the distal cusp of the maxillary first molar or the mesial cusp of the maxillary second molar. However, the objective of the present invention can also be achieved by selecting the mesial cusp of the maxillary first molar or the distal cusp of the maxillary second molar as the cusp interference contact point. Furthermore, in the case of the maxillary second premolar, the distal cusp is preferable to the mesial cusp, and in the case of the maxillary third molar, the mesial cusp is preferable to the distal cusp. 【0051】 The direction in which the crown of the maxillary molar moves towards the buccal side is extremely important from the standpoint of stress concentration and transmission efficiency, thereby realizing a mechanism in which occlusal force acts stably on the maxilla via the functional cusp. 【0052】 As a result, the position of the mandible in the state of cusp interference contact moves closer to its original centric position, and the occlusal force transmitted from this mandibular position moves the maxilla, leading to improvement of facial asymmetry, shortening of the philtrum, elevation of the nasal root, and descent of the nasal tip. Subsequently, it becomes easier for the dentist to correctly determine the centric position of the mandible and move on to subsequent dynamic orthodontic treatment. At the same time, the facial appearance of the wearer (patient) can be improved at the skeletal level. 【0053】 Figure 4 is an abstract explanatory diagram showing the "dislocated bite" state produced by the orthodontic appliance of the present invention, as the bite (in the explanation of Figure 4, this will also be simply referred to as "bite") of the maxillary and mandibular right first molar (the same applies to the second molar, etc.). In Figure 4, the left side of the maxillary and mandibular right first molars is the palatal side (maxillary) and the lingual side (mandibular), and similarly, the right side is the buccal side. The illustration of the maxillary and mandibular left first molars is omitted, but they are symmetrical with the upper and lower right first molars described below, and with the use of the orthodontic appliance of the present invention, the right and left first molars become parallel and synchronized. In the explanation of Figure 4 below, the right represents both the right and left, with the right representing the left. 【0054】 Figure 4(a) shows the normal bite before using the orthodontic appliance of the present invention, and Figure 4(b) shows the "dislocated bite" created by using the orthodontic appliance of the present invention. Figure 5 is an explanatory diagram showing the maxilla (left side) 40 from the outside. 【0055】 In Figure 4(a), the maxillary right first molar 20 (corresponding to 1136 above), which is roughly composed of a root portion 21 and a crown portion 22, is in a relationship where it occludes with the mandibular right first molar 30, which is similarly composed of a root portion 31 and a crown portion 32. Arrow 23 indicates the direction in which occlusal pressure is applied to the maxilla, and arrow 33 indicates the direction in which occlusal pressure is applied to the mandible. The maxillary first molar 20 and the mandibular first molar 30 have their respective functional cusps 221 and 321 in contact at the cusp slopes. Furthermore, the functional cusp 221 of the maxillary first molar 20 is in contact with the mandibular non-functional cusp 322 at the cusp slope, and the functional cusp 321 of the mandibular first molar 30 is in contact with the maxillary non-functional cusp 222 at the cusp slope. Thus, normally, the upper and lower first molars occlude with their concave and concave surfaces engaging with each other. Chewing is a rolling motion based on this occlusion. This is the normal state of the bite. 【0056】The "dislocated bite" state is generated by the function of the orthodontic appliance of the present invention itself, as well as by the transmission of the occlusal force from the wearer (patient), by "moving the orientation of the crowns of one maxillary molar on each side of the wearer's upper jaw towards the buccal side." Figure 4(b) shows the state in which the orientation of the crown of the maxillary first molar 20 moves towards the buccal side (the position moves diagonally upward) due to the force component in the direction of arrow A, resulting in the maxillary first molar 20'. In this state, the contact surface between the maxillary first molar 20' and the mandibular first molar 30 is only between the functional cusp 221 of the maxillary first molar and the functional cusp 321 of the mandibular first molar. The contact area of ​​the upper and lower first molars is reduced compared to the normal state in Figure 4(a), and the functional cusp 221 is raised and closer to the mandibular molar 30 than other parts on the crown of the maxillary first molar. This generates premature contact with cusp interference between the left and right maxillary and mandibular molars, achieving a "dislocated bite." Furthermore, as described above, when the maxillary molar to which the attachment is attached is the maxillary first molar or maxillary second premolar, generating premature contact with cusp interference at the distal cusp is more efficient in inducing the rotational movement of the maxilla than generating it at the mesial cusp; conversely, when it is the maxillary second molar or maxillary third molar, generating premature contact with cusp interference at the mesial cusp is more efficient in inducing the rotational movement of the maxilla than generating it at the distal cusp. 【0057】In this state of cusp interference, the occlusion of the upper and lower first molars is point contact, and the wearer (patient) perceives a "click! click!" sensation of contact at a single point. The distance the maxillary first molar 20 moves to reach this state is only about 1.5 mm to 2.0 mm, accompanied by subtle irregularities, and if it moves too far, the point contact state is immediately lost. Therefore, in order to reliably achieve the premature contact accompanied by the above-mentioned cusp interference, it is preferable that the orientation of the crown of the maxillary first molar 20 can be freely moved. In the orthodontic appliance of the present invention, the movement of the crown orientation is achieved by combining the function of the orthodontic appliance itself with the daily occlusal activity of the wearer (patient). As the orientation of the tooth crown shifts, the occlusion of the upper and lower first molars of the wearer (patient) also transitions from the initial surface contact to the desired point contact state. By achieving the "click! click!" bite described above, the desired improvement in jaw position and facial appearance can be reliably advanced. 【0058】 The first effect of generating premature contact accompanied by the cusp interference described above is, as already stated, to release the constraint on the mandible relative to the maxilla, allowing the mandible to naturally move (posteriorly displace) to its proper position. By performing dentition formation with the mandible in its proper position, a state is created where no undue stress is placed on the temporomandibular joint. In other words, the position of the mandible is reset, and by returning to the proper positions of the mandibular body and mandibular condyle, the initially desired state of relaxation of the temporomandibular joint is achieved, leading to improvement of temporomandibular joint disorders. 【0059】Then, as shown in Figure 4(b), as the maxillary first molar 20' moves buccally, the contact area with the mandibular first molar 30 decreases, and premature contact with cusp interference occurs between the left and right maxillary and mandibular molars. This causes a concentration of stress (arrows 23 and 33) from the wearer's (patient's) daily occlusal force at the reduced contact points. This stress is transmitted to the maxillary body 41 via the maxillary alveolar process 201 during and after the maxillary first molar 20 moves to 20'. The increased occlusal force due to stress concentration is further transmitted as a rotational moment to the frontal process 43 with the zygomatic process 42 as the axis, and the force further increased by the lever principle becomes a force (forward projection force: arrow) 44 that causes the frontal process 43 to protrude forward. The posterior border of the maxilla forms a pterygopalatine fossa several millimeters wide between it and the lateral plate of the sphenoid bone, and the anterior projection force 44 induces rotational movement of the maxilla. 【0060】 Thus, the rotational movement of the maxilla described above makes it possible to achieve the second effect of the present invention, which is improvement of the facial features of the wearer (patient) at the skeletal level. However, how the wearer's facial features are specifically improved depends on the wearer's jaw position before treatment, their inherent facial bone structure, etc. The following are merely examples based on the inventor's experience in actual clinical practice. These examples are case-by-case, and in wearers, one or more cases of facial improvement selected from (a) and (b) below have been observed. 【0061】 (a) By using the orthodontic device of the present invention, the columella between the eyebrows of the wearer (patient) is raised by several millimeters, the tip of the nose is lowered, and combined with the effect on the alveolar bone due to the pressure of the dental arch and periodontal tissues of the orthodontic device of the present invention, a beautiful ACR (alar columnar relationship) is formed. ACR is an index used as a criterion to consider which is higher or lower and what constitutes a beautiful relationship between the alae and the columella, by comparing the heights of the base of the alae and the columella. Generally, it is said that a beautiful appearance is achieved when the middle columella is a slightly downward-convex triangle. If the columella is higher or at the same height as the alae, improving the ACR results in an "elegant facial appearance." 【0062】(b) One or more of the following changes are observed in the patient as a result of using the orthodontic appliance of the present invention: 【0063】 The philtrum (the shield-shaped groove between the nose and mouth) shortens; the upper lip thickens, forming a C-curl (a C-shaped curve when viewed from the side from the columella to below the nose); a gummy smile (a smile where the teeth are exposed) is suppressed; the width of the face decreases; the elevation of the lower eyelids is suppressed; the corners of the mouth lift when the zygomaticus major muscle contracts; the midface shrinks; the appearance of a long face improves; the asymmetry of the jawline improves; jaw deviation improves; columella deviation improves; the forehead appears rounder due to the forward movement of the frontal process; the jaw angle decreases; the balance between the upper and lower lips improves due to the inversion of the upper lip; the profile of the side face improves (the so-called E-line improves); increased elasticity of the skin of the lower face and improvement in wrinkles are observed. 【0064】 Such aesthetically pleasing results are achieved through the use of the orthodontic device of the present invention. 【0065】 In addition, by contacting and pressing the lateral dental arch placement portion against the lateral dental arch, the lateral dental arch can be expanded laterally, contributing to the improvement of maxillary prognathism. This improvement of maxillary prognathism through lateral expansion is a treatment performed as needed and as a preliminary step in the orthodontic appliance of the present invention, and the full improvement of maxillary prognathism should be achieved through subsequent orthodontic treatment. 【0066】 <Summary Explanation> (1) Lateral dental arch placement section The lateral dental arch placement section corresponds to the "lateral guide section" in the embodiment. When fitted, the lateral dental arch placement section is positioned along the palatal side of the maxillary dentition in the left and right maxillary dentition of the wearer (patient), in a region where the longest extension is from the mesial interproximal surface of the canine tooth to the distal interproximal surface of the second premolar, and the shortest extension is from the distal interproximal surface of the first premolar to the palatal crown bulge of the second premolar. 【0067】The reason for allowing for a range in the length and position of the lateral dental arch placement area is that it can be selected considering the condition of the wearer's (patient's) maxillary dentition and their desired final orthodontic result. Furthermore, the "corresponding area" defines the existence of the lateral dental arch placement area based on a state where all teeth have erupted, and then fits the wearer's actual dentition to that state. Typically, this invention takes into account the response to tooth extractions performed in orthodontics. For example, there are wearers who have already undergone orthodontic treatment in the past, and other teeth adjacent to the spaces created by extractions have shifted. Conversely, there are also wearers who still have missing teeth. To define the lateral dental arch placement area consistently and without contradiction, including in such cases, the above-mentioned "corresponding area" is defined. 【0068】 The area in the left and right upper jaw dentition where the lateral dental arch placement is positioned can be selected within the specified upper and lower limits, depending on the condition of the wearer's (patient's) dentition and their aesthetic preferences regarding the final result of orthodontic treatment. 【0069】 Typical examples include the region corresponding to the crown bulge of the canine tooth to the crown bulge of the second premolar, or the region corresponding to the crown bulge of the first premolar to the crown bulge of the second premolar. The former region, corresponding to the crown bulge of the canine tooth to the crown bulge of the second premolar, is an example shown in the examples (described later). This is the most standard example in a wearer (patient) where all teeth from the canine to the first molar have erupted. The latter region, corresponding to the crown bulge of the first premolar to the crown bulge of the second premolar, is, in short, the region of the former region with the canine region excluded. The reason for excluding the canine region is to prevent further buccal movement of the canine due to lateral expansion. For example, in a Class I crowding case, downward movement and lingual movement are necessary to include the canine that protrudes buccally into the dentition. 【0070】Furthermore, the distal end of the lateral dental arch arrangement portion is continuous with or connected to the mesial end of the resultant force generating portion further distally, and the distal portion from there is typically a bent redundant portion. Also, if the maxillary molar to which the attachment and fixation portion is attached is the maxillary second molar or third molar, etc., and is located far from the distal end of the lateral dental arch arrangement portion, it is preferable that the bent redundant portion be located on the mesial side, close to the attachment and fixation portion. Therefore, it is preferable that there is a non-bent portion (typically a straight portion) between the distal end of the lateral dental arch arrangement portion and the mesial end of the bent redundant portion. 【0071】 The above-mentioned continuity point or junction point substantially coincides with the bending point in the alveolar-gingival direction. When it is necessary to push the tooth to which the bending point contacts toward the buccal side in the orthodontic appliance of the present invention, using the bending point as a point, this can be achieved by designing the appliance so that the bending point is located on the crown bulge of the tooth. When the pressing function of the above-mentioned bending point is unnecessary, the appliance can be designed so that the bending point does not affect a specific tooth and therefore does not have the above-mentioned function by designing the appliance so that the bending point is located on the adjacent surface. Typically, this distinction regarding the bending point (excluding cases such as tooth extraction) applies to either aligning the distal end of the lateral dental arch arrangement portion with the position of the crown bulge of the second premolar, or aligning it with the position of the distal adjacent surface of the second premolar. In the following explanation, unless otherwise specified, the above-mentioned distinction between the crown bulge and the adjacent surface will be omitted for convenience. 【0072】 Furthermore, if the wearer (patient) has had teeth extracted, for example, if the first premolar has been extracted and the resulting space has been filled with a second premolar, and the first molar is adjacent to the second premolar, then, for example, the "area corresponding to the canine to the first premolar" can be selected as the area where the lateral dental arch placement portion is positioned. 【0073】The lateral dentition placement portion can also be positioned on the palatal side of only one tooth. In this case, one tooth (usually the tooth adjacent to the mesial side) of the tooth to which the force generating portion is attached and fixed (typically the first molar, but depending on the wearer's dentition, rarely the second molar, and very rarely the third molar or second premolar) is selected as the single tooth. Choosing this configuration weakens the overall redundancy of the orthodontic appliance of the present invention, and as a result, the range of adjustment for the force generating portion using the bent redundancy portion becomes larger, making fine adjustments more difficult than when positioned for two or more teeth. Therefore, selecting only one tooth in this way is appropriate when only one tooth remains that should be selected as the target for applying the lateral expansion force due to tooth extraction, dental disease, artificial tooth roots, etc. Performing orthodontic measures such as lateral expansion on artificial tooth roots is contraindicated. 【0074】 In the above embodiment, the lateral dental arch placement portion, positioned along the lateral dental arch of the maxilla or the palatal side of the teeth, is subjected to a first pressing force and a second pressing force (described later), thereby enabling the application of a lateral expansion force to the lateral dental arch or teeth. Furthermore, these pressing forces are transmitted to the resultant force transmission portion, thereby enabling the wearer (patient) to achieve the main objective of the orthodontic appliance of the present invention: "generating premature contact accompanied by cusp interference at the target maxillary molar." 【0075】 A more specific description of the lateral dental arch arrangement will be provided later in the section "(3) Second pressing force generation section". 【0076】 (2) First pressing force generating section The first pressing force generating section is continuous with or connected to the left and right lateral dental arch arrangement sections described above, and includes a first pressing force transmission section that intersects with "a region near the midline of the hard palate that is located higher in the oral cavity than the cervical area of ​​the region from the canine to the second premolar" (hereinafter also referred to as the "region near the midline"). The region near the midline will be described later with reference to Figure 19. 【0077】The force source of the first pressing force generated from the first pressing force generating section (hereinafter also referred to as the "(first) pressing force source") is also necessarily included in the first pressing force generating section. It is preferable that the first pressing force source is visible, but the present invention also includes embodiments in which the first pressing force source is latent in the first pressing force transmission section. A typical latent embodiment is one in which the entire first pressing force generating section has both ends continuous with or connected to the left and right lateral dental arch arrangement sections, and has a curved structure that follows the transverse curve of the palate when worn. For example, one embodiment is a curved structure like the "first member 20 which is a stress generating member depicted in Figure 8 of Patent Document 2" (only the curved structure 20 is extracted). In this embodiment, stress is generated against elastic deformation in the first pressing force transmission section, and the first pressing force generating section takes the external shape of the first pressing force transmission section itself and is latent in the first pressing force transmission section. Such latent embodiments are expressed as "The first pressing force generating unit includes the first pressing force transmitting unit," that is, without including the first pressing force source as a constituent element. However, if this is inappropriate, we are willing to follow expressions such as "The first pressing force generating unit includes the first pressing force transmitting unit and pressing force source," or "The first pressing force generating unit includes the first pressing force transmitting unit and the first pressing force source," if these are preferable in clarifying the scope of the present invention. 【0078】 Here, we will describe the manifestation of the first pressing force source included in the first pressing force generating unit, that is, the manifestation of the first pressing force source being distinct from the first pressing force transmission unit. 【0079】A preferred example in which the first pressing force source is present is a disclosure of an embodiment that includes a "central guide section as the first pressing force transmission section" and a "central loop as the pressing force source." In this embodiment in which the first pressing force source is present, one end of the first pressing force transmission section is continuous with or connected to the right and left lateral dental arch arrangement sections, and the other ends of both the right and left sections are continuous with or connected to the first pressing force source located in a region near a line projected onto the midline of the hard palate, which is higher in the oral cavity than the cervical area of ​​the region from the canine to the second premolar. The first pressing force source can generate a first pressing force in the orthodontic appliance that applies a lateral expansion force to the maxillary dentition or maxillary teeth in a region where the longest extension is from the mesial interproximal surface of the canine tooth to the distal interproximal surface of the second premolar, and the shortest extension is from the distal interproximal surface of the first premolar to the distal crown bulge of the second premolar, via the first pressing force transmission unit and the lateral dentition arrangement unit. 【0080】 The first pressing force generated in the first pressing force source is preferably the stress due to elastic deformation in a member that is continuous with or connected to the other end of the first pressing force transmission section (hereinafter also referred to as "elastic deformation stress"). Other examples include the force generated by the progression of a screw (hereinafter also referred to as "screw progression force"). 【0081】 (a) Elastic deformation stress (first source of compressive force) Elastic deformation stress is a force that occurs in a member that has been deformed to the limit of maintaining elastic deformation stress, during the process of returning to its original state, and examples include bending stress and shrinkage stress. 【0082】 A typical embodiment of a first pressing force source that supplies elastic deformation stress as the first pressing force is a structure that generates bending stress on an elastic wire. 【0083】 In dental terminology, "elastic wire" refers to a wire that can move teeth (orthodontic wire). However, since orthodontic wires are standardized products, the term "elastic wire" is used to ensure general applicability. 【0084】Functionally, a resilient wire can be described as "a linear member that, when bent to a limit that maintains stress against elastic deformation, generates stress against that bending, and this stress becomes a force source that moves a predetermined tooth or dental arch." The material of the resilient wire is not particularly limited as long as it can perform the above role as a resilient wire, such as metal or plastic, but in practice, metal wire, white wire, gold wire, stainless steel wire, Elgiloy wire, etc., which are used as orthodontic wires, can be suitably used. The thickness of the above orthodontic wire can be selected according to its material, the strength of the stress against elastic deformation it exhibits, the gender and age of the wearer (patient), etc. Currently, the thickness of orthodontic wires used as resilient wires is 0.6-1.0 mm (wires of 0.6, 0.7, 0.8, 0.9, and 1.0 mm are available (commercially available) in Japan). Wires of these thicknesses can be freely selected as needed, but 0.8-0.9 mm is preferred. 【0085】 Not only purely wire-shaped elastic members, but also elastic members with a shape in which the length direction is extremely long compared to the width direction can constitute the first pressing force source in accordance with the elastic wire described above. For example, it is possible to use a structure in which a member made of a superelastic shape memory alloy such as Ni-Ti, as disclosed in Patent Document 2, is mostly plate-shaped (with a cross-section of a rounded rectangle, a semi-circular shape, etc.) and has partially different wall thicknesses, has its bending stress used as the pressing force. 【0086】A preferred embodiment of the elastic deformation stress due to elasticity is a pressing force source in which, for example, there is an open portion on either the front or rear side that is substantially symmetrical with respect to the midline, and the other side is a linear member with an encircling shape, and elastic deformation stress is generated as the gap in the open portion on the one side narrows. In particular, a pressing force source in which one side is the front side and the other side is the rear side, as in the central loop of the embodiment, is preferred. The specific shape of the encircling portion is not particularly limited, but shapes without corners, such as loops and arcs, are preferred examples because they are safer for the human body. Furthermore, loops and arcs are also preferred because they are symmetrical (when the loop or arc is folded, it overlaps with the other side), and it is easy to apply bending stress evenly in opposite directions across the axis of symmetry (specifically, in the right and left cheek directions). Among these, the loop shape is particularly preferred because it is easy to process, such as by providing a bending point within the loop according to the surface shape of the hard palate. When the base of the loop or arc is tightened and the device is attached to the wearer (patient), the bending stress that causes it to expand in response to this tightening becomes the first pressing force. 【0087】 (b) Other pressing principles (first pressing force source) The first pressing force source is preferably a force source that uses elastic deformation stress due to elastic lines as described above. 【0088】 Furthermore, other pressure principles used in the field of orthodontics can also be used, and this falls within the scope of the present invention. However, compared to the use of elastic deformation stress by elastic wires, these methods tend to be more roundabout and costly. 【0089】 For example, a pressing force source can be provided that uses the force generated by the progression of a screw (screw progression force) as the pressing principle, such that the other end of the screw, whose advancing end is in direct or indirect contact with the other end (the end on the midline side) of the first pressing force transmission part, advances toward the one end (the end on the lateral tooth arrangement side). For example, a hinge equipped with a rotating arm that rotates in accordance with the movement of the advancing end of the screw can be rotated by the progression of the screw, and this rotational force can be used as the pressing force source. Furthermore, by replacing the expanding screw with a compression spring or compressed rubber, a compressive stress in the same direction as the screw progression force can also be applied. 【0090】 (c) Position in the palate The palate is the upper wall of the oral cavity, a strongly convex portion that curves upward (towards the top of the head). The hard palate occupies approximately the anterior two-thirds of the palate, is hard to the touch, and is an immobile part of hard tissue with a bone base. In contrast, the soft palate occupies approximately the posterior one-third of the palate, is soft to the touch, and is an immobile part of soft tissue with a muscle base. The palatine fovea are located at the boundary between the hard palate and the soft palate. 【0091】 The first pressing force generating unit, together with the first pressing force transmitting unit, includes an apparent or latent first pressing force source, and the first pressing force transmitting unit or pressing force source is positioned to intersect with the midline region when the orthodontic appliance is attached. Then, via the first pressing force transmitting unit and the lateral dentition arrangement unit, the orthodontic appliance can generate a first pressing force that applies a lateral expansion force to the maxillary dentition or maxillary teeth in the region corresponding to "the longest range from the mesial interproximal surface of the canine to the distal interproximal surface of the second premolar, and the shortest range from the distal interproximal surface of the first premolar to the distal crown bulge of the second premolar." 【0092】 Figure 19 schematically shows the region 200 (cross-section) near the midline. Figure 19 is a schematic diagram of a longitudinal cross-section of the human mouth, cut along a line connecting the distal adjacent surfaces of the right and left first molars. The right upper jaw first molar 1136 and the right lower jaw first molar 30, and the left upper jaw first molar 1136' and the left lower jaw first molar 30' are shown in a biting position. The tongue 122 is located between the right and left lower jaw molars 30 and 30', and the hard palate 114 is located between the right and left upper jaw first molars 1136 and 1136'. The × mark 118 indicates the presence of the midline (palatine raphe), as described above. Since it is a longitudinal cross-section, the midline is shown as a point in Figure 19. 【0093】In Figure 19, the region 200 near the midline (cross-section) is higher than the "cervical height" (dotted line II-II), which is approximately the lowest position where the lateral dentition should be positioned, and is below the height of the hard palate (the height of the dotted line II-II connecting the palatal cervical portions 1136Δ and 1136Δ' plus h). This region includes a width that is symmetrical to the right and left when viewed around the length of the midline, which serves as a guideline for where the first pressing force source of the orthodontic appliance of the present invention should be located. The width w of this symmetrical width should be determined according to the configuration of the first pressing force generating portion and the width diameter of the palate, and is not particularly limited, but generally, any configuration of the first pressing force generating portion that is within 1.5 cm on each side (within 3 cm in total) is included. 【0094】 For example, in the "arch-shaped" configuration in which the first pressing force source is latent in the first pressing force transmission section, it intersects with the region near the midline by passing through it. Also, in the configuration in which the first pressing force source is visible, the first pressing force source exists intersecting with the region near the midline. 【0095】 Preferably, the highest point of attachment of the first pressure generating unit is located near the midline 118 of the hard palate of the person to be attached (patient) (hereinafter also referred to as the "midline region"). The "highest point of attachment" mentioned above corresponds, for example, to the top portion (convex portion) of the arch in the case where the entire first pressure generating unit, in which the first pressure source is latent, is arch-shaped. In the case where the first pressure source is visible, it generally corresponds to the location where the first pressure source is present. 【0096】When the orthodontic appliance of the present invention is fitted, it is preferable that sufficient lingual space (the area where the tongue can move freely) is secured in the mouth of the wearer (patient). That is, in order to ensure that the movement of the wearer's tongue is not hindered by the structure of the orthodontic appliance as much as possible, it is preferable that the highest part of the first pressure generating section is located close to the hard palate 114. Furthermore, when the maxillary dentition moves due to the lateral expansion movement of the orthodontic appliance of the present invention, it should be considered that the above-mentioned "highest part of the fitting position" may move away from the hard palate 114, potentially hindering the securing of lingual space. At the same time, it is also important to ensure that the above-mentioned "highest part of the fitting position" does not come into contact with the hard palate 114 and cause contact stress to the wearer. 【0097】 Another important point is that, in order to generate a pressing force that is "diagonally upward toward the outward (cheek) side" in the second pressing force generating section (described later), it is preferable that the upward slope toward the outward (cheek) side exists as steeply as possible from the other end (the end on the midline side) of the first pressing force transmission section toward the one end. 【0098】 For these reasons, the "highest mounting position" described above should not be in contact with the hard palate 114 of the wearer (patient), but it is preferable that it be configured to be as close as possible to the hard palate 114, and sometimes to the point of contact. 【0099】 The extent to which the above-mentioned "highest point of attachment" should be positioned relative to the patient's hard palate depends on the practical experience of the wearer (dentist) and also on the shape and condition of the patient's hard palate, making it difficult to determine uniformly. If we were to define it, it is preferable that the above-mentioned "highest point of attachment" be located within a range of 1 mm to 3 mm from the surface of the patient's hard palate 114. 【0100】The "highest point of attachment" mentioned above corresponds, for example, to the head portion (convex portion) of the arch in the embodiment in which the arch-shaped first pressing force source is latent. In the embodiment in which the first pressing force source is visible, it generally corresponds to the first pressing force source. Furthermore, the position of the "highest point of attachment" when viewed from above from the tongue 122 side of the hard palate 114 is not limited to the furthest forward part of the hard palate or the anterior part of the soft palate, but a preferred example is the "region directly below the hard palate, anterior to the palatine fovea, on both the right and left buccal sides of the midline of the wearer's (patient's) hard palate, where the "central loop" shown in the embodiment is located. 【0101】 (d) The first pressing force transmission unit is continuous with or connected to the second pressing force generation unit. Accordingly, the specific configuration of the first pressing force transmission unit will be described in the section "(3) Second pressing force generation unit" below. 【0102】 (3) Second pressing force generating section The second pressing force generating section is located in the continuous or connecting section between the right and left lateral dental arch arrangement section and one end of the right and left first pressing force transmission section, and the orthodontic appliance can generate a force (hereinafter also called "posterior expansion force") that causes the posterior angle formed by the continuous or connecting section to widen. The posterior angles in the embodiment are, for example, 531θ1, 532θ1, 722ρ1, 732ρ1', etc. 【0103】 One preferred configuration of the second pressing force generating portion is such that the second pressing force generating portion is located at the mesial end of the lateral tooth arrangement portion, that is, such that one end of the first pressing force transmitting portion is continuous with or connected to the mesial end. However, the second pressing force generating portion can be located at any position in the longitudinal direction (the direction in which it is arranged along the lateral tooth arrangement) of the members constituting the lateral tooth arrangement portion. 【0104】 In short, the second pressing force generating section is located at the intersection of the lateral tooth arrangement section and the first pressing force transmission section. Therefore, we will now provide an illustrative explanation of the specific configurations of the members constituting the lateral tooth arrangement section and the first pressing force transmission section, which have been withheld from explanation until now. 【0105】(a) Members constituting the lateral tooth arrangement portion and the first pressing force transmission portion It is preferable that both the lateral tooth arrangement portion and the members constituting the first pressing force transmission portion be elastic wires. 【0106】 The meaning of "elastic wire" is as explained in (2)(a) above. Not only purely wire-shaped elastic members, but also elastic members with a shape in which the length direction is extremely long compared to the width direction can constitute the lateral tooth arrangement portion or the first pressing force transmission portion in accordance with the above-mentioned elastic wire (linear member). For example, it is possible to use a structure in which a member made of a superelastic shape memory alloy such as Ni-Ti, disclosed in Patent Document 2, is mostly plate-shaped (the cross section is a rounded rectangle, a semi-circular shape, etc.), but with a partially different thickness, is used as the pressing force source due to its bending stress. 【0107】 The above-mentioned components, including the elastic wire, can be freely selected as straight or curved and incorporated into the structure as needed. For example, the contact point with the palatal side of the lateral dental arch in the lateral dental arch arrangement portion can be shaped to match the alignment of the wearer's (patient's) lateral dental arch, or the first pressure transmission portion can be shaped to match the curve of the wearer's palatal surface. 【0108】 (b) Elastic deformation stress (second pressing force generation part) As described above, elastic deformation stress is a force that occurs in the process of returning to the original state in a member that has been deformed to the limit of maintaining elastic deformation stress, and bending stress is a typical example. 【0109】 The intersection that generates bending stress is typically characterized by a configuration in which the elastic wire is continuous between the lateral tooth arrangement and the first pressure transmission portion. A typical example of this continuous configuration is when the lateral tooth arrangement and the first pressure transmission portion are composed of the same elastic wire, and a rearward angle is formed by the bending at the intersection of the two. Connections include welding (metal) and fusion (plastic, etc.). The connection may be a point connection connecting the ends of both members or a line connection connecting them in the longitudinal direction. As long as sufficient strength against the bending stress (second pressure) that causes the rearward angle to widen is ensured at the connection portion, any connection method such as welding, fusion, brazing, bonding, fitting, hinges, etc., can be used. Considering the strength against bending, the above continuous configuration is preferable. 【0110】 When the orthodontic device of the present invention is fitted, the posterior angle narrows due to the bending force, and the bending stress that causes it to widen from there becomes a second pressing force (posterior expanding force). The second pressing force includes both posterior expanding properties (outward-expanding force) and upward directionality. The posterior angle is not limited to the range of 0-180 degrees as long as the above-mentioned elastic deformation stress is maintained. 【0111】 Other forces include screw propagation forces similar to the first pressing force source described above, but it is particularly preferable to use bending stress at the rear angle as the second pressing force source. 【0112】 (4) Force transmission section The force transmission section has one end that is continuous with or connected to the distal end of the left and right lateral dental arch arrangement sections and preferably includes a bent redundant portion of a linear member that is positioned along the region from the palatal cervical portion to the root portion of the wearer (patient). It also includes a mounting and fixing portion on the distal side of the bent redundant portion and preferably attaches and fixes to one of the right and left maxillary molars or second premolars, or to one of them, via the mounting and fixing portion. 【0113】 In short, the combined force transmission section transmits the combined force of the first and second pressing forces to the target maxillary molar (rarely the second premolar) that is attempting to induce premature contact accompanied by occlusal interference. It also adjusts the position of the orthodontic device of the present invention within the maxilla of the wearer (patient) by adjusting the bending redundant section, thereby adjusting the balance of the strength, presence, and direction of each of the above pressing forces, as well as the load that the orthodontic device of the present invention imposes on the wearer. 【0114】 (a) Components constituting the combined force transmission section The components constituting the combined force transmission section can be broadly classified into mounting and fixing sections, bending and redundant sections, and other components. 【0115】 The flexible redundant portion is made of elastic wire. While the mounting and fixing portion and the flexible redundant portion (other members) are not limited, they are preferably made of elastic wire. Preferably, the flexible redundant portion and the other members are made of elastic wire and are continuously connected. 【0116】The attachment and fixing portion is the part for attaching and fixing the orthodontic appliance of the present invention to both of the maxillary molars, one on the right and one on the left, or to one of the teeth that is to be subjected to premature contact accompanied by cusp interference (rarely the maxillary second premolar may also be targeted). The attachment and fixing portion can use fixing devices for orthodontic appliances that are commonly used in the field of orthodontics. Specifically, examples include bands and lingual sheaths. A band is "a band-ring-shaped member mainly fitted onto a molar to attach and fix an orthodontic appliance," and some bands have a portion for fitting and fixing a linear member such as an elastic wire, while others do not. For bands that do not have the above-mentioned fitting and fixing portion, it is assumed that a lingual sheath, described later, will be used by bonding it, or that a linear member such as an elastic wire will be fixed to the band by brazing or the like. In the present invention, it is possible to use both types of bands. A lingual sheath is an adapter into which a linear member such as an elastic wire is fitted and fixed. There are two types: one in which the lingual sheath itself is bonded to the tooth crown, and another in which it is bonded to a band, as described above. In the present invention, both types of lingual sheaths can be used, but the type that is bonded to a band is preferred because it is easy to apply the combined force of the first and second pressing forces evenly to the target maxillary molar (rarely the second premolar). Any fixing device that can fix the orthodontic appliance of the present invention to the target maxillary molar (rarely the second premolar) and transmit the above combined force can be used as the attachment and fixing part, even if it is not a band or lingual sheath. 【0117】 (b) Molars on which the attachment device is used The molars on which the attachment device is used, that is, the molars that are likely to cause premature contact accompanied by cusp interference, are either one or both of the maxillary molars, one on the right and one on the left. Rarely, the second premolar may also be included. This is a requirement that takes into account the individual circumstances of the wearer's (patient's) teeth. 【0118】In other words, for a wearer (patient) who has all maxillary molars (meaning the first and second molars on both the right and left sides; the third molar (wisdom tooth) is excluded as an exception), it is possible to select the second molar, but it is preferable to select the first molar. If either or both of the first molars on the right or left side are missing due to extraction or are artificial, the second molar can be selected. The effect of the present invention is not affected even if the selected molars differ on the right and left sides. Furthermore, in wearers where the third molar is present but not embedded in the gum, if either the first or second molar is missing due to extraction or is an artificial, the third molar can be selected. In this case as well, it is permissible for the right and left molars to be different. This is the meaning of "both maxillary molars, one on each side" as described above. 【0119】 Furthermore, in the right and left maxillary molars, it is possible that one side, either the right or the left, may lack both the first and second molars, or may have artificial tooth roots (assuming the third molar is absent). Also, even if molars are present, certain factors may make them unsuitable for applying strong orthodontic loads. In such cases, it is permissible to apply the present invention only to the other side where maxillary molars remain. This is the meaning of "one side." Thus, when it is necessary to avoid the generation of premature contact accompanied by cusp interference in the molars, the configuration of the orthodontic appliance on the avoidance side can be different from the configuration that would exert the effects of the present invention. For example, by applying a lateral expansion force between the canine and second premolars using the lateral dental arch arrangement, and fixing the orthodontic appliance with a band or the like to the first or second premolar, it is possible to apply only a lateral expansion force while avoiding premature contact accompanied by cusp interference (Figure 14). 【0120】(c) Bent redundant sections Bent redundant sections are usually present, and preferably, one on each side, from the distal end of the lateral dentition to the attachment and fixation section of the maxillary molar. In the embodiment, the bent redundant sections are the right loop and left loop, such as 512 and 513. The number of bent redundant sections is counted in units of a unified shape. For example, in the embodiment, there is one on each side, with the right loop 512 and the left loop 513. 【0121】 The curved redundant portion is intended to adjust the fit of the orthodontic appliance of the present invention on the wearer (patient). In clinical practice, the orthodontic appliance of the present invention is fitted to the wearer based on the wearer's plaster tooth impression, so that the resultant force of the first and second pressing forces on the upper right and left sides is applied in a balanced manner to the target upper molar, resulting in premature contact with cusp interference in accordance with the wearer's daily occlusion, without causing excessive physical pain to the wearer. After fitting, the upper molars that are targeted to move the orientation of the wearer's tooth crown buccally are checked over time to see how much they have moved and how close they are to the target state of premature contact with cusp interference, and whether the wearer is experiencing excessive physical pain. In reality, it is assumed that there is a difference between the left and right sides of the upper molar arrangement, and the degree of their movement is also taken into account the wearer's daily occlusal habits. Therefore, it is natural that there will be differences between the left and right sides in the displacement of the target upper molars caused by the orthodontic appliance of the present invention. Furthermore, applying pressure to the palatal side of the dentition may cause pain in the wearer. 【0122】 In such cases, the wearer (dentist) of the orthodontic appliance of the present invention needs to adjust the position and force applied to the orthodontic appliance at the palatal cervical area of ​​the patient. The part that performs this adjustment function is the bendable redundant section. 【0123】In other words, after the orthodontic appliance of the present invention is fitted, a dentist or other professional can further bend the elastic wire of the aforementioned bent redundant shape to freely adjust the three-dimensional arrangement of the orthodontic appliance of the present invention. This allows for adjustment of the strength and presence or absence of contact between the components and the palatal cervical portion of the dentition and the mucous membrane, thereby controlling the physical burden on the wearer (patient). Furthermore, by controlling the balance between the strength and presence or absence of the first and second pressing forces, the process of premature contact accompanied by cusp interference at the target molar can be optimized. While adjustments using the above-mentioned bent redundant shape can be performed while the orthodontic appliance of the present invention is fitted to the wearer (patient), it is preferable to remove the appliance first, especially in the case of large-scale adjustments. For this reason, it is preferable that the orthodontic appliance of the present invention can be attached and detached from the wearer's maxillary dentition multiple times by a dentist or other professional. However, it is a prerequisite for treatment management that the wearer cannot easily attach or detach the appliance themselves. Removing and reattaching a band or lingual sheath, which is realistically chosen as the attachment and fixation point, is a routine treatment procedure for dentists and other medical professionals and is easy, but removal is difficult for the wearer, and thus meets the above requirements regarding attachment and detachment. 【0124】 The shape and size of the above-mentioned bent redundant portion can be freely selected by dentists, etc., as long as they can handle it as described above and do not excessively hinder the movement of the wearer's (patient's) oral cavity. Specifically, the above shape is preferably a surrounding shape consisting of continuous elastic lines. Furthermore, from the standpoint of safety for the human body, it is particularly preferable that the surrounding shape is a shape without corners, such as a loop or an arc. The above size is preferably limited to the extent that the bent redundant portion rests on the gingiva on the palatal side of the maxilla when in contact with the palatal side of the maxilla. 【0125】 (d) Role of the attachment and fixing part The components constituting the attachment and fixing part and the maxillary molar to which it is attached are as described above. 【0126】The role of the attachment and fixing portion is to fix the orthodontic appliance of the present invention to the inside of the maxilla, and to transmit both or either of the first and second pressing forces to the target maxillary molar (rarely including the maxillary second premolar), thereby moving the orientation of the crown of the maxillary molar toward the buccal side and generating premature contact accompanied by occlusal interference between the maxillary molar and the mandibular molar. 【0127】 (5) Configuration as a single unit or as a set The orthodontic device of the present invention is a device configured as a single unit or as a set. That is, the orthodontic device of the present invention may be configured as an integral unit (single unit configuration), or as a "set" in which each part is appropriately combined. The indication in the gist of the present invention that exemplifies the configuration as a set is "connection" between members, and the form in which these connecting members are separated is exemplified as a "set". Specifically, these are: (a) a connecting set of a first pressing force source and a first pressing force transmission unit, (b) a connecting set of a first pressing force transmission unit and a lateral dental arch arrangement unit (second pressing force source), (c) a connecting set of a lateral dental arch arrangement unit and a resultant force transmission unit (substantially a bent redundant unit), and (d) a connecting set of a bent redundant unit within the resultant force transmission unit and a mounting and fixing unit. It is also possible to combine two or more of these connecting sets. Furthermore, these are merely examples and do not exclude other connecting sets. These connecting sets may be based on the premise of distribution as a set that can be connected and assembled when in use, or they may be based on the premise that the connecting elements are distributed independently of each other. 【0128】 Among the examples above, the connecting set in (d) is particularly important. The "band" or "lingual sheath," which are typical forms of the attachment and fixing part, are commercially available products commonly used in orthodontics, and the attachment and fixing part represented by the band or lingual sheath is usually separate from the other parts of the orthodontic appliance of the present invention. Therefore, a representative example of a "set" is a set of "band or lingual sheath" and "other components constituting the orthodontic appliance of the present invention." In addition, in connection with this, the "part of the jaw position correction appliance and its precursor" of the present invention, which does not have an attachment and fixing part, has also been added to the gist of the invention. This will be discussed later. 【0129】Furthermore, the connection assembly of the first pressing force source and the first pressing force transmission unit in (a) is particularly practical as a set when the first pressing force source has a high degree of independence as a component, when combined with other parts. Similarly, (b) and (c) are also practical as sets depending on the selection of specific components. 【0130】 Connections include welding (metal) and fusion (plastic, etc.). Connections may be point connections that link the ends of both members together, or line connections that link them along their lengths. Any connection method can be used, such as welding, fusion, brazing, bonding, fitting, hinges, etc., as long as the required strength at the connection point (for example, strength against bending stress (second pressing force) that causes the rear angle to widen) is ensured at the connection point. 【0131】 <Details of Action and Effects> The actions and effects of the orthodontic device of the present invention will be further explained in relation to the gist of the invention. 【0132】 The orthodontic device of the present invention is a dental device optimized to realize the extremely novel idea of ​​"correcting jaw position and improving facial appearance by actively inducing premature contact accompanied by occlusal interference between the maxillary and mandibular molars." 【0133】 (1) Direction of pressing force The first pressing force is supplied by a pressing force source arranged to provide pressing force in the right-left horizontal direction, and is a force suitable for expanding the lateral dentition (including single teeth) that is in contact with the lateral dentition arrangement portion in the right-left buccal horizontal direction relative to the maxillary dentition. This horizontal buccal force is applied to the mounting and fixing portion as the first pressing force. 【0134】 The second pressing force is a flaring force, and the source of the pressing force is positioned along the slope of the palate, making it a force generally directed diagonally upward to the right and left buccal sides relative to the maxillary dentition. This flaring and diagonally upward force is applied to the mounting and fixing portion as the second pressing force. 【0135】These two types of forces are applied to the left and right mounting and fixing parts, with the principle being that the resultant force is the resultant force. An exception to the resultant force is when the contact of the device's components with the palatal dentition by the aforementioned bent redundant section is controlled, thereby relieving the load of either the first or second pressing force. It is also possible to relieve both of these pressing forces. Furthermore, it is possible to apply force in the opposite direction by shortening the loop. 【0136】 The attachment point is, in principle, attached to the right and left maxillary molars (preferably the first molars). This is approximately the distal end of the device, and in particular, the second pressing force acts on it, causing it to widen towards the buccal side rather than the anterior (mesial) side. Therefore, the combined force applied to the attachment point includes a buccal distal-measuring rotational moment with respect to the target maxillary molar. 【0137】 From these observations, the force acting on the attachment and fixing portion can be summarized as a moment in the lateral buccal direction and / or diagonally upward buccal direction, including the rotational moment mentioned above. 【0138】 In addition to this, a force component in the direction of arrow A (Figure 4(b)) is generated by the combination of this force component and the force component generated by the wearer's (patient's) own daily occlusal function. As a result, the orientation of the crown of the maxillary first molar (which may be the second molar, etc.) 20 moves buccally (its position moves diagonally upward), resulting in the state of the maxillary first molar 20', that is, a state in which the bite is dislocated due to cusp interference contact. Preferably, the direction in which the orientation of the maxillary molar crown moves is in a direction that minimizes the contact area of ​​premature contact between the maxillary molar and the mandibular molar as much as possible. 【0139】Arrow A' in Figure 4(b) indicates the direction of movement of the maxillary first molar 20 due to the application of a normal lateral expansion force. Even if a normal orthodontic means for lateral expansion is applied to the maxillary first molar 20 alone, the buccal distal-proximal rotational moment, which includes a force in the diagonal upward direction on the right and left buccal sides, is not involved. As a result, only the position of the molar moves, and it is difficult to achieve the above-described movement of the maxillary first molar 20 with good yield. Furthermore, if a normal orthodontic means for lateral expansion is applied directly to the molar (for example, when attempting lateral expansion of the molar using the configurations in Figures 7 and 8 of Patent Document 2), since only a linear load of lateral expansion force is applied, there is a high risk that the maxillary molar 20 will move too far outward without going through the stage of premature contact due to occlusal interference. In this configuration, adjustment midway is difficult, and once it has moved too far in this way, it requires a great deal of effort to correct it. In other words, with the direct lateral expansion of the molars described above, it is practically difficult to achieve the intended goal of early contact through cusp interference. Furthermore, with direct lateral expansion of the molars, the wearer's (patient's) own daily occlusal force does not contribute to achieving early contact through cusp interference, and it is difficult to achieve the effect of improving facial appearance. 【0140】 (2) Adjustment function due to redundancy As described above, the distance of movement of the maxillary molars (rarely the maxillary second premolars) to premature contact due to cusp interference performed by the orthodontic appliance of the present invention is only about 1.5 mm to 2.0 mm, accompanied by subtle irregularities, and if it goes too far, the point contact state is immediately lost. It is preferable for a dentist using the orthodontic appliance of the present invention to complete the movement of the maxillary molars on both the left and right sides almost simultaneously, while making necessary adjustments along the way. Furthermore, such movement of the maxillary molars is performed in conjunction with the wearer's (patient's) daily occlusion. The positions and conditions of the target molars on the left and right sides of the wearer are different from each other, and it is natural that the wearer has unique habits in their daily occlusion. Therefore, it is necessary that the orthodontic appliance of the present invention can be adjusted during use. 【0141】As mentioned above, the elastic wire of the bent redundant section can be used for this adjustment. Another element is "redundancy of the entire device." Specifically, this means that there is sufficient length of material between the mounting fixing part and the first pressing force source, and between the mounting fixing part and the second pressing force source. 【0142】 In other words, dentists and other medical professionals can adjust elements such as the balance between the strength of the first and second pressing forces, the presence or absence of these pressing forces, and the balance between the left and right sides by bending and straightening the elastic wire in the flexible redundant section. However, if the overall redundancy of the device is not ensured, even slight bending and straightening of the flexible redundant section will cause the above elements to change significantly, making the adjustment operation difficult. 【0143】 From this perspective, in order to ensure the length of the first pressing force transmission portion, i.e., the length to the mounting and fixing portion, it is preferable that the first pressing force source be close to the hard palate. Furthermore, in order to ensure the length to the mounting and fixing portion of both the first and second pressing force sources, it is preferable that the length of the lateral dental arch arrangement portion is ensured. Specifically, it is preferable that the length of the lateral dental arch arrangement portion be greater than the length that covers two consecutive teeth (from the adjacent surface on the opposite side of one tooth to the crown bulge of the other tooth). If the lateral dental arch arrangement portion covers only one tooth (at a minimum, the length between the adjacent surface and the crown bulge), the adjustment operation by the bent redundant portion becomes difficult, requiring the skill of a dentist or other professional. 【0144】 Furthermore, by increasing the length of the elastic wire and providing a bendable redundant section, it is possible to contribute to the overall redundancy of the device's components. However, the size and shape should be limited to a level that does not cause discomfort to the wearer (patient), taking into account the bending and straightening of the elastic wire. 【0145】 In the gist of the present invention, (a) with respect to the first pressing force generating unit, it is stated that "...it is possible to generate a first pressing force that expands laterally in the orthodontic device." and (b) with respect to the second pressing force generating unit, it is stated that "...it is possible to generate a force that tends to widen the angle as a second pressing force in the orthodontic device." 【0146】The phrase "possible" in (a) and (b) above takes into account that there may be cases where the first or second pressing force does not occur due to adjustment by the bent redundant portion. 【0147】 In other words, at least at the start of jaw position correction treatment using the orthodontic appliance of the present invention, it is standard practice for the appliance to be fitted so that both the first and second pressing forces are generated by the orthodontic appliance. However, it is considered that there may be cases where the load of both or either of these pressing forces is relieved during the process leading up to premature contact due to cusp interference. 【0148】 (3) Positioning as orthodontic appliances Existing orthodontic appliances can be broadly classified into mechanical orthodontic appliances and functional orthodontic appliances. 【0149】 Mechanical orthodontic appliances are devices that use mechanical force, that is, force other than muscle force, as the orthodontic force. Examples include labial orthodontic appliances, lingual orthodontic appliances, lingual arch appliances, anchor screw appliances, and aligner orthodontic appliances. 【0150】 Functional orthodontic devices are devices that use muscle strength as the corrective force, and examples include trainers, activators, bionators, and Frenkel devices. 【0151】 In contrast to these, the orthodontic device of the present invention uses mechanical force as the source for the first and second pressing forces, while combining this with the transmission of the wearer's (patient's) occlusal force to the device, thereby achieving premature contact accompanied by cusp interference. This combination of mechanical and functional forces allows the orthodontic device of the present invention not only to drastically improve jaw position, which was previously considered impossible without surgery or extraoral devices such as maxillary protraction devices, but also to rotate the maxilla, thereby improving the wearer's facial appearance at the skeletal level. Furthermore, by applying pressing force to the lateral dental arch, it is possible to expand the wearer's lateral dental arch and alleviate maxillary protrusion. 【0152】Thus, the orthodontic device of the present invention is a complex dental orthodontic device whose primary purpose is to correct the jaw position of the wearer (patient), and it differs from existing orthodontic devices. The jaw position correction performance of the orthodontic device of the present invention surpasses that of mouthpieces used in splint treatment, and it also has the function of improving facial appearance at the skeletal level. Furthermore, it also has the function of alleviating maxillary prognathism. 【0153】 In other words, the orthodontic device of the present invention is an innovative orthodontic device that combines a mechanical orthodontic device and a functional orthodontic device, and does not fall into any of the existing categories of orthodontic devices. 【0154】 4. Orthodontic Treatment Using the Orthodontic Appliance of the Present Invention <Contents of Orthodontic Treatment Using the Orthodontic Appliance of the Present Invention> Conventional orthodontic treatment involves diagnosing whether or not to extract teeth. If extraction is deemed necessary, the teeth are extracted; if not, the orthodontic appliance is fitted immediately, and the orthodontic treatment process begins. In other words, a treatment plan is made based on the pre-existing position of the maxillary molars, and the orthodontic treatment proceeds based on this plan. For example, in aligner orthodontic treatment, the final state of the orthodontic treatment is determined based on the initial diagnosis, which is based on the pre-existing position of the maxillary molars. Dozens of orthodontic appliances are created from start to finish and fitted to the patient sequentially. Aligner orthodontic treatment is a method that moves the patient's teeth linearly to the destination so as to reach the determined final state of treatment. However, although this method may seem rational at first glance, numerous cases of failure have been reported. In reality, the process of orthodontic treatment should be carried out with flexible responses to non-linear changes in the oral cavity, such as changes in the arrangement of teeth, and the subsequent treatment plan should be carefully determined while checking the patient's progress at each stage. 【0155】The treatment using the orthodontic appliance of the present invention begins with a first step in which the appliance is used to reset the unnatural movement of the mandible caused by deviation from the position of the maxillary molars, which can be identified from the patient's initial abnormal jaw movement, and further improves the facial appearance at the skeletal level (jaw position and facial appearance improvement step). Next, in the second step, based on the optimal jaw position obtained in the first step of jaw position and facial appearance improvement, occlusion is restored with the maxillary position reset, and orthodontic treatment is performed as needed. The treatment in this first step of jaw position and facial appearance improvement is innovative as described above, and the framework of this first step of jaw position and facial appearance improvement, and the second step of orthodontic treatment based on it, is in line with the ideal of meticulous and flexible orthodontic treatment that is tailored to the jaw position and facial appearance of the wearer (patient) before treatment. Furthermore, performing subsequent orthodontic treatment based on the results of this first stage of jaw position and facial appearance improvement also constitutes meticulous and flexible orthodontic treatment. In the second stage of orthodontic treatment, treatment should also be carried out while making fine adjustments according to the methods and appliances used. 【0156】 The orthodontic appliance of the present invention is also useful in the second stage of dynamic treatment. Specifically, the orthodontic appliance of the present invention is used by connecting it to the right and left maxillary molars, thereby allowing the positional relationship between the left and right maxillary molars to be continuously adjusted even in the second stage of dynamic treatment. Alternatively, the pressing force on the lateral teeth obtained by the orthodontic appliance of the present invention abutting against the inner edge of the maxillary dental arch can also be continuously utilized in the second stage of dynamic treatment. 【0157】 Another extremely advantageous aspect of using the orthodontic appliance of the present invention is that the improvement in jaw position, dentition, and facial appearance provided by the use of the orthodontic appliance of the present invention is "sustainable or stable." 【0158】As described above, the "correct mandibular position" obtained by the wearer (patient) using the orthodontic device of the present invention is, in other words, a return to the "correct mandibular position" that the wearer inherently possesses. Therefore, the "state in which distorted jaw movement becomes normal and facial appearance improves" obtained by the wearer after the completion of the first stage of jaw position and facial appearance improvement step using the orthodontic device of the present invention can be used as the "foundation for orthodontic treatment" to begin the second stage of orthodontic treatment. This means that by going through the first stage of jaw position and facial appearance improvement step, the wearer can obtain a beautiful and stable set of teeth that is free from "relapse or misalignment of teeth" (hereinafter referred to as "relapse, etc.") while maintaining the "state in which distorted jaw movement becomes normal and facial appearance improves" as described above. 【0159】 "Relapse" literally refers to the phenomenon where teeth that have been straightened return to their pre-orthodontic state, and "misalignment of teeth" can also occur after orthodontic treatment. To prevent this, it is standard practice in orthodontic treatment to have a retention period using a retainer after the completion of a series of orthodontic treatments. 【0160】 The causes of relapse are not only due to the non-use of retainers, but also largely because dynamic treatment is completed without correcting the deviation of the jaw position, resulting in uneven stress being constantly applied to each tooth. 【0161】 In other words, relapse is a phenomenon that can occur even with a retention period. Relapse is generally considered to be caused by the fact that the alveolar bone supporting the teeth has not yet hardened immediately after a series of orthodontic treatments and the removal of the orthodontic appliance. However, in conventional orthodontic treatment, the general orthodontic process (dynamic treatment) is performed without going through the "prior reset to the correct mandibular position," that is, "improvement of jaw movement by improving the correct jaw position," which is achieved by the orthodontic appliance of the present invention. In this case, even after the dynamic treatment is completed and the retention period begins, the prior jaw movement remains the same, so if the prior jaw movement is distorted, the occlusal force in a biased direction due to the distorted jaw movement will cause distortion of the teeth. This is the main cause of relapse. Relapse can occur even when using a retainer because the jaw position, which is the foundation of orthodontic treatment, has not been treated. 【0162】 In contrast, by using the orthodontic device of the present invention in the first stage of orthodontic treatment, which is the jaw position and facial appearance improvement step, the jaw position of the wearer (patient) is corrected, forming the foundation for subsequent orthodontic treatment. This makes it possible to prevent relapses and other issues as described above. 【0163】 <Orthodontic Treatment After the Jaw Position and Facial Appearance Improvement Step> As described above, the second stage of dynamic treatment in orthodontic treatment using the orthodontic appliance of the present invention consists of (a) restoring the "occlusion" obtained by establishing the correct position of the maxilla from the "malocclusion" state that occurred in the first stage jaw position and facial appearance improvement step, and (b) applying orthodontic means according to the condition of each patient's teeth, as needed and as a precaution. (a) is essential, and (b) is optional. 【0164】 (a) Regarding the restoration of the bite, the basic principle is that by removing the orthodontic appliance of the present invention, the bite will naturally be restored by the daily occlusal movements corrected by the treatment in the first stage of jaw position and facial appearance improvement, while the correct position of the mandible is maintained and the maxilla adjusts to the mandible. To assist this, intermaxillary elastics, braces with wires on the front of the teeth, etc., can be used as needed to restore the bite while adjusting the arch form according to standard methods. Performing this bite restoration process as part of the leveling described below is also preferable when proceeding to the dynamic treatment in (b). 【0165】 (b) Dynamic treatment can be performed as needed after (a) has been completed. Specific examples include correcting misalignments in the direction of individual teeth's eruption and treating further overjet (protrusion: commonly known as buck teeth). The specific methods can be carried out according to standard orthodontic techniques. 【0166】As mentioned above, the standard procedure for orthodontic treatment (dynamic treatment) consists of (1) leveling, (2) distal movement of the canines, (3) posterior movement of the incisors, and (4) final finishing. This is followed by long-term retention treatment. Here, we will briefly explain each step, including (5) retention. In each of these steps, standard orthodontic appliances and retainers are selected and used. 【0167】 (1) Leveling The first step in orthodontic treatment is an initial orthodontic step in which teeth that are displaced or tilted or rotated vertically, labiolingually, and mesiodistally are aligned as correctly as possible and brought into the occlusal plane. Maintaining the attachment of the orthodontic appliance of the present invention mainly at this stage can support the execution of leveling. 【0168】 (2) Distal movement of the canine teeth (limited to cases of tooth extraction) The second step in orthodontic treatment is to move the canine teeth backward (distally) to the extent necessary to create space for alignment and retraction of the incisors, assuming the existence of space due to tooth extraction or other reasons. 【0169】 (3) Posterior movement of incisors The third step in orthodontic treatment is to move the incisors collectively backward by a predetermined distance while maintaining the proper arc arrangement of the incisors. 【0170】 (4) The fourth step of final orthodontic treatment is to create the best possible dentition and occlusion for each individual case. The goal is to achieve the ideal arch form by carefully checking the direction of tooth root placement and the occlusion of opposing teeth in the upper and lower jaws, and performing meticulous adjustments. 【0171】 In this fourth step, the active treatment of orthodontic teeth is completed, and the next step is the retention stage described in (5) below. 【0172】(5) Retention The new dentition created by the dynamic treatments described in (1)-(4) above needs to be replaced with a new environment that includes the tongue, cheeks, and lips. It takes a considerable amount of time for the periodontal tissues, tooth placement, dentition, and occlusion to adapt to this new environment, and if left untreated after the dynamic treatments are completed, the dentition will revert to its original state. To prevent this, it is necessary to wear a retainer (device to maintain the current state) for many years after the procedure. 【0173】 Even when performing orthodontic treatment using the orthodontic appliance of the present invention, it is necessary to carry out a subsequent retention process using various retainers. This is because, even if the biased occlusal force, which is the main cause of relapse, is improved by using the orthodontic appliance of the present invention, it is necessary to prevent the disruption of the original positional relationship between adjacent teeth (broken contact) due to irregular pressure on the teeth caused by the patient's daily eating and habits, and the elastic force of the periodontal ligament. However, as mentioned above, the biased occlusal force, which is the main cause of relapse, is improved by the correction of the jaw position in the jaw position and facial appearance improvement step, and tooth mobility that hinders alveolar bone calcification can be minimized, so the retention period can be shorter than before, and relapse is less likely to occur. 【0174】 5. Part of the orthodontic device of the present invention (main body of the jaw position correction device) or its precursor As described above, the orthodontic device of the present invention includes a mounting and fixing part, but a "part of the jaw position correction device or its precursor" from which the mounting and fixing part has been removed can also be sold and distributed independently, and is the subject of implementation of the present invention. 【0175】 The above-described portion of the orthodontic device of the present invention (the main body of the jaw position correction device) is subsequently connected or made continuous at a predetermined position with a mounting and fixing part that exists separately in the form of a band or lingual sheath, for example, when it is attached to the wearer (patient), and is attached to the wearer's upper jaw as the orthodontic device of the present invention, thereby exhibiting the function and effect of the present invention. 【0176】 A preferred example of the prototype of the above-mentioned part is a prototype in which the three-dimensional form for fitting as a jaw position correction device to the shape of the maxilla of the wearer (patient) has not yet been completed, as is the preferred example of the part of the orthodontic appliance described above. 【0177】 Two types of states in which the three-dimensionalization is not yet complete are exemplified: a form in which the structures of the components (1)-(5) of the orthodontic device of the present invention described above (except that the attachment and fixing part is excluded from (5)) exist on substantially the same plane (planar prototype), and a form in which preliminary three-dimensionalization has been performed for the convenience of final three-dimensionalization (three-dimensional prototype). Specific examples will be described later. 【0178】 <Cases where the use of the orthodontic appliance of the present invention is restricted> Although the orthodontic appliance of the present invention is highly versatile, there are situations in which its use should be restricted. These are listed below. (1) In situations such as functional malocclusion, if lingual movement of the maxillary dentition is undesirable, the use of the orthodontic appliance of the present invention is contraindicated as it may make treatment difficult. (2) If abnormal bone resorption is observed in the periodontal tissue of the maxillary molars that the orthodontic appliance of the present invention contacts, as diagnosed by X-ray imaging, the use of the orthodontic appliance of the present invention is contraindicated. (3) If there is pain such as percussion pain in the teeth that the orthodontic appliance of the present invention contacts, its use is contraindicated. (4) If the teeth that the orthodontic appliance of the present invention contacts are artificial tooth roots, its use is contraindicated. (5) If the lingual space is extremely narrow or the tongue is extremely large, caution is needed when using the orthodontic appliance of the present invention. (6) If the fitting of the orthodontic appliance of the present invention makes general dental treatment required before orthodontic treatment difficult, its use should be avoided. (7) If the use of the orthodontic appliance of the present invention is unacceptable for occupational reasons or other reasons, the use of the appliance is not suitable. (8) If you have an allergic reaction to the materials (especially metal) of the orthodontic appliance of the present invention, you should avoid using it. (9) If jaw movement is normal and the molar relationship is Class I (so-called Class I crowding), the use of the orthodontic appliance of the present invention is not necessary except for the purpose of improving facial appearance. 【0179】The present invention provides a jaw position correction device to be attached to the maxilla, which has a function to generate premature contact with cusp interference between the maxillary and mandibular molars, and the portion thereof excluding the attachment and fixing part or its progenitor. By generating premature contact with cusp interference by this jaw position correction device, the occlusion between the maxillary and mandibular molars is simulated to be dislocated. As a result, the mandible is reset to the wearer's (patient's) original position. At the same time, the lateral expansion force applied by the jaw position correction device alleviates maxillary prognathism. Based on this reset state of the mandible, by performing orthodontic treatment as needed, the wearer can achieve improvement in temporomandibular joint disorder and a beautiful set of teeth. Furthermore, due to premature contact accompanied by cusp interference, the maxilla rotates around the zygomatic process, causing the columella between the eyebrows of the wearer to rise by several millimeters, the nasal tip to descend, forming a beautiful ACR (anterior-posterior curve), and shortening the philtrum (the shield-shaped groove between the nose and mouth). This creates a highly desirable cosmetic state at the skeletal level. Moreover, a key feature of the present invention is that the state of the teeth and other features corrected using the orthodontic device of the present invention is long-lasting. 【0180】This is a schematic diagram showing the typical oral cavity of an adult human. This is a schematic diagram showing the palatal surface viewed from the front with respect to the maxilla. This is an explanatory diagram illustrating the directional terms on the maxilla side with a front view of the palatal surface. This is an explanatory diagram showing the movement of the crown direction of the maxillary molars as an occlusion of the maxillary and mandibular first molars with the orthodontic device of the present invention. This is an explanatory diagram showing the maxilla (left side) from the outside. This is a perspective view of one embodiment of the orthodontic device of the present invention with the attachment and fixing part removed (jaw position orthodontic device body). This is a front view of one embodiment of the jaw position orthodontic device body. This is a plan view of one embodiment of the jaw position orthodontic device body. This is a left side view of one embodiment of the jaw position orthodontic device body. This is a plan view of one embodiment of the orthodontic device of the present invention. This is a diagram showing the direction and orientation when one embodiment of the orthodontic device of the present invention is attached to the wearer (patient). This is a diagram showing one embodiment of the orthodontic device of the present invention with the device attached to the maxilla side of the wearer (patient), with a front view of the palatal surface. This is a drawing showing the movement of the maxillary dentition when one embodiment of the jaw position correction device is continuously worn on a wearer (patient), viewed from the front of the palatal surface. This is a drawing showing the form of one embodiment of the jaw position correction device when worn, viewed from the front of the palatal surface, in which both distal ends act on only one maxillary molar on each side via a fixing part. This is a drawing showing an example of the product form of the jaw position correction device body. This is a perspective view of the planar progenitor of the jaw position correction device in another embodiment of the orthodontic device of the present invention, with the fixing part removed. This is a perspective view of the planar progenitor of the jaw position correction device body in another embodiment of the orthodontic device of the present invention, with the fixing part removed. This is a drawing showing the state in which the device is worn on the maxillary side of a wearer (patient), viewed from the front of the palatal surface, in another embodiment of the orthodontic device of the present invention. This is a schematic diagram of a longitudinal cross-section of the region near the midline (cross-section) of the human mouth, cut by a line connecting the distal adjacent surfaces of the right and left first molars. 【0181】 1. Disclosure of a Typical Embodiment (1) Hereinafter, an embodiment of the orthodontic device of the present invention will be described with reference to the drawings. In this embodiment, the orthodontic device directly disclosed by the drawings uses a band as the attachment and fixing part, and the other parts are composed of continuous elastic wires. This disclosure of an embodiment is not intended to limit the present invention. 【0182】Figures 6-13 disclose one embodiment of the orthodontic device of the present invention, showing everything from its basic structure to how it is attached to the maxilla of the wearer (patient). Right and left refer to the right and left as seen from the wearer's perspective. Up and down also refer to the up and down as seen from the wearer's perspective. Figure 6 is a perspective view of the jaw position correction device 50 of the present invention, with the attachment and fixing part removed 57 (hereinafter referred to as the jaw position correction device body 57). Figure 7 is a front view of the jaw position correction device body 57 as seen in the direction of arrow B, Figure 8 is a plan view as seen in the direction of arrow C (top view), and Figure 9 is a left side view as seen in the direction of arrow D. Figure 10 is a plan view of the jaw position correction device 50 with bands, which are the attachment and fixing parts, provided at both distal ends. Figure 11 shows the direction and orientation of the jaw position correction device 50 when attached to the wearer. Figure 12 shows the jaw position correction device 50 attached to the maxilla of the wearer. Figure 13 is a diagram showing the trend of movement of the maxillary dentition when the jaw position correction device 50 is continuously worn by the wearer. 【0183】 The jaw position correction device body 57 shown in Figures 6-9 is composed of a single continuous elastic wire, but the orthodontic device of the present invention is not limited to this form. Furthermore, by connecting a part of the elastic wire via a detachable part such as an adapter, it is possible to create a configuration in which the components can be combined and assembled, or in which the components can be replaced. Typically, orthodontic wire, which is commonly used in orthodontic treatment, is used as the elastic wire, with a thickness (diameter) of 0.6-1.0 mm, and preferably 0.8-0.9 mm. In particular, a wire with a thickness (diameter) of 0.9 mm is most suitable as the wire used in this form of jaw position correction device. The cross-sectional shape of the wire is not limited, but it is preferably circular or similar to a circular shape. 【0184】As shown in Figures 6-9, the jaw position correction device body 57 has a shape that is approximately symmetrical with respect to the axis I-I along the midline of the hard palate, and has loop shapes in the center and on the left and right sides (center loop 511, right loop 512, left loop 513). The central loop 511, which is the first pressing force source, is approximately symmetrical with respect to the axis I-I along the midline of the hard palate, and includes the central continuous point 503 of the right side 501 and the left side 502. The right loop 512, which is a bent redundant part, is located on the distal side near the right distal end 5011, and the left loop 513, which is also a bent redundant part, is located on the distal side near the left distal end 5012. From the mesial end 5121 of the right loop 512 and the mesial end 5131 of the left loop 513, guide sections are provided (right side guide section 521 and left side guide section 522), which are lateral tooth arrangement sections, preferably accompanied by gentle curves, toward the right large bend section 531 and the left large bend section 532, respectively, which are second pressing force generating sections (second pressing force sources). Guide sections (right central guide section 541 and left central guide section 542), which are first pressing force transmission sections, are provided from one end of the right large bend section 531 and one end of the left large bend section 532 to both ends of the central loop 511 (central loop right end 5111 and central loop left end 5112), and the central loop 511 is formed including these ends. The loop shape (511, 512, 513) is one preferred embodiment of the surrounding shape due to the configuration of elastic wires. As mentioned above, among these, the central loop 511 is preferable in that it can be positioned as close as possible to the hard palate so that the jaw position correction device 50 can be attached to the wearer (patient). 【0185】 The overall shape of the jaw position correction device body 57 is preferably such that, when the jaw position correction device 50 is attached to the wearer (patient), it conforms to the shape of the wearer's maxillary dental arch on the palatal side. In addition, the jaw position correction device 50 is attached to the wearer in a state in which it is bent approximately symmetrically and approximately horizontally with respect to the axis I-I along the midline of the hard palate. The bending stress generated by this bending becomes the first buccal (lateral) pressing force on the right and left maxillary dental arches. 【0186】The bending angles Θ of the right and left large bends 531 and 532, which are posterior angles (531Θ and 532Θ, respectively), are curved in an R shape, including a horizontal angular component θ1 formed between the right and left central guides 541 and 542, which form a line (preferably a gentle curve) in the mouth that approximates the direction of the dentition including the maxillary second premolar to the canine (distal to mesial direction) in the mouth, and a vertical angular component θ2 (the upper component mentioned above) that forms a curve that approximates the curve of the hard palate extending from the gingival margin of the maxillary canine to the posterior mesial side of the mouth, so that when fitted, the right and left central guides 541 and 542 extend from the cervical of the maxillary canine towards the mesial side of the hard palate, forming a central loop 511. The above 531Θ refers to the bending angle Θ at the right large bend 531, and 532Θ refers to the bending angle Θ at the left large bend 532. In the drawing symbols, 531, 532 and Θ are shown separately. 531Θ and 532Θ should be subtly adjusted according to the wearer's (patient's) condition and are not strictly equal, but for explanatory purposes, they are treated as approximately equal. The bending stress that causes the bending angle Θ to spread outward is the second pressing force. 【0187】The same applies to the horizontal angular component θ1 (531θ1, 532θ1) and the vertical angular component θ2 (531θ2, 532θ2). The right loop 512 and left loop 513, located on the right and left distal sides of the main body 57 of the jaw position orthodontic appliance, form R-shaped loops with bending angles Φ (5121Φ, 5131Φ) (horizontal direction 5121φ1, 5131φ1; vertical direction 5121φ2 (not shown), 5131φ2) that follow the curve from the cervical area of ​​the second premolar to the palatal side of the first molar. 5121Φ refers to the bending angle Φ at the mesial end 5121 of the right loop 513, and 513Φ refers to the bending angle Φ at the mesial end 5131 of the left loop 513. In the drawing symbols, 5121, 5131 and Φ are shown separately. 5121Φ and 5131Φ, like Θ mentioned above, should be subtly adjusted according to the wearer's (patient's) condition and are not strictly equal, but for explanatory purposes they will be treated as approximately equal. The same applies to the horizontal angular component φ1 (5121φ1, 5131φ1) and the vertical angular component φ2 (5121φ2 (not shown), 5131φ2). 【0188】 Furthermore, the central loop 511 is formed such that the angle component θ3 (522θ3) when viewed from the horizontal direction is gentler than the vertical angle component θ2 formed by the right and left side guide portions 521 and 522. θ3 is only shown in Figure 9, which is a left side view. This θ3 is provided to ensure the tongue space of the wearer (patient) as much as possible, in accordance with the inclination of the hard palate surface. Although not shown, on the right symmetrical side of the central loop 511 of 522θ3, there is a vertical angle component 521θ3 formed by the right side guide portion 521. Both 522θ3 and the unshown 521θ3 should be subtly adjusted according to the shape of the wearer's hard palate, etc., and they are not strictly equal, but for explanatory purposes, they will be treated as approximately equal. 【0189】As shown in Figure 10, the jaw position correction device 50 has bands (right band 55, left band 56) attached to the outer edge of the jaw position correction device body 57 at the right and left distal ends (right distal end 5011, left distal end 5012), respectively, so that they can be fitted to the upper right and left first molars of the wearer (patient) when worn (right band attachment part 551, left band attachment part 561). The means of attachment is not limited, and as shown in the figure, in addition to welding such as brazing, fitting using a fine adapter can be selected, for example. Currently, fine adapters called lingual sheaths are available that can be attached to the side of the band to fit and fix a linear member such as an elastic wire in that position, and using these is also preferable. 【0190】 Figure 11 shows the direction (arrow E) and orientation of the jaw position correction device 50 when it is attached from the patient's natural oral cavity 10. The person attaching the device is a dentist. The jaw position correction device 50 is attached to the patient's upper dental arch from the hard palate side. The right band 55 is fitted and fixed to the upper right first molar, the left band 56 is fitted and fixed to the upper left first molar, and so on, with each element of the jaw position correction device 50 being attached to the predetermined position of the upper dental arch. 【0191】 Figure 12 shows the shape of the jaw position correction appliance 50 attached to the palatal side of the maxilla in the direction shown in Figure 11, in a front view of the palatal surface. The representation of the teeth constituting the maxillary dentition in Figure 12 follows that of Figure 2. 【0192】The right side guide portion 521 and the left side guide portion 522 are in contact with or close to the palatal sides of the second premolars (1135, 1135'), the first premolars (1134, 1134'), and the canines (1133, 1133') respectively, and correspond to the "region whose longest extent is from the mesial adjacent surface of the canine to the distal adjacent surface of the second premolar," that is, the lateral dentition arrangement portion. As will be explained later in Figure 13, when the jaw position correction device 50 is attached to the palatal side, the right side guide portion 521 and the left side guide portion 522 apply a second pressing force component and a first pressing force that expand the bending angle (indicated by the horizontal angular component θ1: 531θ1, 532θ1) of the right and left large bending portions 531 and 532, thereby achieving lateral expansion of the dentition of the maxillary canines (right 1133, left 1133'), first premolars (right 1134, left 1134'), and second premolars (right 1135, left 1135'). 【0193】 In this region, which "longest corresponds to the area from the mesial adjacent surface of the canine tooth to the distal adjacent surface of the second premolar," the "right major bend 531" and "left major bend 532," which are the most mesial parts on the right and left sides respectively, are connected to both ends (the right end 5111 and the left end 5112 of the central loop) via the "right central guide 541 and the left central guide 542," respectively. The central loop has a structure that is "located near the midline of the wearer's (patient's) hard palate and includes, on both the right and left buccal sides of the midline, the area directly below the hard palate anterior to the palatine fovea as its main area, and is substantially the same shape on both sides of the midline." Preferably, the central loop 511 is close to the wearer's hard palate but does not come into contact with it, and its tip, the central continuous point 503, reaches directly below the posterior edge of the hard palate. This section, "'Right large bend 531 and left large bend 532' - 'Right central guide section 541 and left central guide section 542' - central loop 511," corresponds to the first pressing force generation section. The central loop 511 is the part that applies a lateral (cheek) pressing force (first pressing force) due to the stress of the surrounding elastic wire, which has been bent to the limit of maintaining the bending stress against elastic deformation. 【0194】The combined force transmission section is formed by the mesial ends (5121, 5131) and distal ends (5011, 5012) of the right and left loops, along with the right and left bands (right band 55, left band 56) which are the attachment and fixing parts. Among these, the right distal end 5122-right distal end 5011 of the right loop and the left distal end 5132-left distal end 5012 of the left loop, and the right and left bands (right band 55, left band 56) connected to them, which are the attachment and fixing parts, have the function of "giving a force to move the orientation of the crown of the maxillary molar (rarely the maxillary second premolar) that is restrained by the bands," in conjunction with the daily occlusal force of the wearer (patient), as will be explained later in the explanation of Figure 13. The right and left loops (right loop 512, left loop 513), which are the bent redundant parts, can be further bent to freely adjust the three-dimensional arrangement of the orthodontic appliance, and to adjust the strength or absence of contact between the constituent members and the palatal cervical area and mucosa, thereby controlling the physical burden on the wearer (patient). Specifically, of the anterior straight portion, central bent portion, and posterior straight portion that constitute the loop, the anterior elastic portion can be moved towards the tooth crown by bending the vicinity of the central part of the anterior straight portion further forward. The same can be done by bending the vicinity of the central part of the posterior straight portion further backward. Conversely, the anterior elastic portion can be moved towards the tooth crown by bending the vicinity of the central part of the anterior straight portion towards the tooth crown. The same can be done by bending the vicinity of the central part of the posterior straight portion forward. 【0195】Figure 13 shows that when the jaw position correction device 50 shown in Figure 12 is attached to the palatal side, firstly, the bending stress of the elastic wire due to the central loop 511 (first pressing force) and the bending stress (second pressing force) caused by the bending angle Θ of the right and left large bends 531 and 532 (shown in Figure 12 as the horizontal angular component θ1: 531θ1, 532θ1) cause the bending angle Θ to expand outward, including an upward component. As a result, a lateral expansion force F and F' including a buccal upward component acts on the dentition of the maxillary canines (right 1133, left 1133'), first premolars (right 1134, left 1134'), and second premolars (right 1135, left 1135'), with the horizontal angular component changing from θ1 to θ1' (531θ1 to 531θ1'). As the dentition expands from 532θ1 to 532θ1', the dentition also expands laterally and distally, as shown in the frontal view of the palatal surface. 【0196】 The first and second pressing forces are then transmitted to the right and left maxillary first molars via the right and left bands (right 55 and left 56), accompanied by buccal distal-proximal rotational moments M and M'. Furthermore, the daily occlusal force of the wearer (patient) simulates a state in which the orientation of the tooth crown moves, as shown in Figure 4(b), and premature contact accompanied by cusp interference is generated. 【0197】 In this type of maxillary dentition, the lateral expansion force applied to the canine-second premolar dentition and the generation of premature contact with cusp interference in the molars alleviate the maxillary prognathism of the wearer (patient). Simultaneously, the pseudo-dislocated occlusion between the maxillary and mandibular molars resets the mandible to the wearer's original position. Along with this, the wearer can improve temporomandibular joint disorder and adjust the dentition. Even more surprisingly, the wearer's (patient's) daily biting force causes a transition from surface contact to point contact, and the occlusal stress resulting from the generation of premature contact with cusp interference causes the maxilla to rotate around the zygomatic process as an axis, improving the wearer's facial appearance at the skeletal level. In this example, the generation of the above premature contact at the distal cusp is preferable. 【0198】Figure 14 shows a front view of the palatal surface of a special type of jaw position correction device 60 attached to the palatal side of the maxilla. In this device, the orthodontic device of the present invention applies the action of "applying a lateral expansion force to the canine-second premolar dentition and generating premature contact with cusp interference at the first molar" only to the right side of the maxillary dentition, while the left side is subjected to "only the application of a lateral expansion force to the canine-second premolar dentition." The right half of the jaw position correction device 60 is the same as the jaw position correction device 50 described above, but the configuration of the left half differs from that of the jaw position correction device 50. 【0199】 The difference between the left half of the jaw position orthodontic appliance 60 and the left half of the jaw position orthodontic appliance 50 is that the left band 56 of the jaw position orthodontic appliance 50 is fitted to the maxillary left first molar 1136', whereas the left band 66 of the jaw position orthodontic appliance 60 is fitted to the maxillary left first premolar 1134'. By fitting the band 66 of the jaw position orthodontic appliance to the maxillary left first premolar 1134', the first pressing force from the central loop 611 and the second pressing force from the left large bend 632 are concentrated around the maxillary left canine-second premolar area centered on the maxillary left first premolar 1134', and become weak for the maxillary left first molar 1136', which only has gentle contact due to contact with redundant elastic wires including the left loop 613. Therefore, the left half of the jaw position correction device 60 only acts to laterally expand the maxillary left canine-second premolar of the wearer (patient), and does not substantially move the orientation of the crown of the maxillary left first molar. On the other hand, the right half of the jaw position correction device 60, similar to the jaw position correction device 50, generates premature contact with cusp interference through the action of first and second pressing forces that move the orientation of the crown of the maxillary right first molar, along with lateral expansion of the maxillary right canine-second premolar. An unbalanced configuration like that of the jaw position correction device 60 can be applied, for example, when it is not possible to generate premature contact with cusp interference in the molars in the maxillary left dentition in this example due to the wearer's health reasons. Even with the use of a jaw position correction device 60 with such an unbalanced configuration, the effects of the present invention can be recognized. 【0200】 The jaw position correction device 60 is one embodiment of a jaw position correction device having two distal ends that are fixed to one of the upper molars on the right and left sides via an attachment and fixing part. 【0201】 2. Actual Implementation of Embodiment (1) <Actual Implementation of the Jaw Position Orthodontic Appliance> When the wearer (dentist) intends to use the jaw position orthodontic appliance 50 shown in Figures 6-13 on a patient, the wearer first conducts counseling with the patient to determine the treatment plan for orthodontic treatment, then creates a plaster impression of the patient's maxillary dentition, and temporarily attaches the jaw position orthodontic appliance 50 to it. The front view of the temporarily attached state is similar to that shown in Figure 12. While the device is temporarily fitted, adjustments are made to the wearer's maxillary dentition to achieve the most appropriate state, taking into account the content of the consultation. These adjustments include: adjusting the balance between the left and right sides, considering the contact strength with the maxillary dentition and the elasticity of the gingival margins, adjusting the bending stress (second pressing force) that causes the bending angle Θ (531Θ, 532Θ) to spread outward (including the upward force component), and adjusting the fit of the right and left bands (55 and 56) to the maxillary molars. After these adjustments, the jaw position correction device 50 is removed from the plaster dental model and reattached to the wearer's maxillary dentition to the state shown in Figure 12, thereby completing the fitting of the jaw position correction device 50 to the wearer. Depending on the wearer's health condition related to their maxillary dentition, etc., the dentist may select an unbalanced configuration like the jaw position correction device 60, or means such as fitting the bands to molars other than the first molars. Furthermore, the subtle curvature of the elastic wires constituting the jaw position correction device 50 is finely adjusted according to the individual and specific condition of the wearer's dentition. In addition, as described above, the condition of the wearer's maxillary dentition is observed over time from the initial placement, and at appropriate times, the jaw position correction device 50 is removed from the maxillary dentition, readjusted each time, particularly using the functions of the right and left loops (512, 513), and then reattached to the wearer. Such reattachment is usually performed multiple times according to the movement of the wearer's dentition over time, and it is preferable to appropriately manage the progress of dentition movement each time. Due to the need for this over time management of the dentition, it is preferable that the jaw position correction device 50 to 60 can be attached and detached by a dentist, while at the same time being difficult for the wearer to attach and detach themselves. This form using bands and elastic wires meets this requirement. 【0202】<Actual Procedure of the Jaw Position Correction Appliance Body> As described above, the jaw position correction appliance 50 is usually first temporarily fitted onto a plaster mold of the upper jaw teeth of the wearer (patient). Before this temporary fitting, a dentist or dental technician attaches bands to both ends of the jaw position correction appliance body 57 (the part of the jaw position correction appliance) to complete the jaw position correction appliance 50 for use. 【0203】 The jaw position correction device body 57 can be produced (manufactured) by bending an elastic wire, and can be manufactured by a dentist or dental technician themselves. 【0204】 In addition, it is possible to mass-produce a standardized jaw position correction device body 57 or its precursor and distribute it as a product. The above-mentioned precursor, provided as a standardized product, is shaped into the form of the jaw position correction device body 57 by a dentist or dental technician at the time of use, and is used as a jaw position correction device 57 for the wearer (patient) through the process described above. 【0205】 Figure 15 shows an example of an embodiment of the jaw position correction device main body 57 and its precursor. 【0206】 Figure 15 shows (1) a perspective view of the planar progenitor 571 of the jaw position correction device body 57, (2) a perspective view of the three-dimensional progenitor 572 thereof, and (3) a perspective view of the jaw position correction device body 57 (at a different angle than the perspective view in Figure 6). The central loop 511, the right loop 512, the left loop 513, and the right and left large bends 531 and 532 are shown in each figure. 【0207】 The planar prosthesis 571 has a shape in which the vertical angular components θ2 and θ3 (see Figure 9) of the right and left large bends 531 and 532 of the jaw position correction device body 57 are approximately 0. The three-dimensional prosthesis 572 has a shape in which the corresponding angle of the vertical angular component θ2 is greater than 0 but smaller than that of the jaw position correction device body 57, and the corresponding angle of θ3 is the same as or smaller than θ3 (but greater than or equal to 0). The bending angles Φ (531Φ, 532Φ) of the right and left large bends 531 and 532 are approximately equal to the horizontal angular component φ1 (531φ1, 532φ). 【0208】The planar prosthesis 571, the three-dimensional prosthesis 572, and the jaw position correction device body 57 not only illustrate an example of the manufacturing process described above, but each can also be manufactured, sold, and distributed as a standardized product. Products that are less three-dimensional than the jaw position correction device body 577, such as the three-dimensional prosthesis 572, are preferable for distribution, including the planar shape of the planar prosthesis 571. 3. Disclosure of a Typical Embodiment (2) Figures 16, 17, and 18 are drawings relating to a jaw position correction device 70, which is a different embodiment from the jaw position correction device 50. The jaw position correction device 70 is more suitable for mass production. 【0209】 Figure 16 shows a perspective view of the planar protrusion 771 of the jaw position correction device body 77, and Figure 17 shows a perspective view of the jaw position correction device body 77. Figure 18 is a drawing showing the jaw position correction device 70 in a state where it is attached to the maxillary side of the wearer (patient), in a front view of the palatal surface. 【0210】 The planar prosthesis 771 can be folded or otherwise processed by the wearer (dentist) to become the main body 77 of the jaw position correction device that can be attached to the wearer (patient). The jaw position correction device 70, to which bands 725 and 735 are attached, is then attached to the upper jaw side of the wearer. The planar prosthesis 771 is a combination of three elastic wires 71, 72, and 73, and the ends of the elastic wire 71 are connected such that the sides of the elastic wires 72 and 73 are symmetrical to each other (connecting parts 722, 732). Any method of connecting the elastic wires at these connecting parts can be used, such as welding, fusion, brazing, bonding, fitting, hinges, etc., as long as sufficient strength is ensured at the connecting part against the bending stress (second pressing force) that causes the posterior angles 722ρ1 and 732ρ1' formed at the connecting parts 722, 732 to spread. 【0211】The planar prosthesis 771, with its overall shape, is provided with loops 711, 721, and 731 at three locations: the center and on the left and right. The section between the connecting parts 722 and 732 is the first pressing force generation section, and the central loop 711 located in the center is the first pressing force source, just like the central loop 511 of the jaw position orthodontic appliance 50, while the remaining part is the first pressing force transmission section. The bending stress in the approximately horizontal lateral direction in the central loop 711 is the first pressing force. The right loop 721 and the left loop 731 are bending redundant sections, just like the right loop 512 and the left loop 513 of the jaw position orthodontic appliance 50, respectively. The distance between the elastic lines right 72 and left 73 is wider on the distal side (right 723, left 733) and narrower on the mesial side (724, 734) to match the shape of the maxillary dentition to which it is fitted. Furthermore, the space between the mesial end of the right elastic wire 72 and the mesial end of the right loop 721, and the space between the mesial end of the left elastic wire 731 and the mesial end of the left loop 512, are the right lateral dentition arrangement section and the left lateral dentition arrangement section, respectively. To make the jaw position correction device body 77 wearable for the wearer, adjustments are made to form a dome-shaped fold (G, G') on the elastic wire 71 from the surface formed between the elastic wires 72 and 73, according to the shape of the maxillary palate to which it is worn. The right and left loops 721 and 731 each need to have inclined folds (H, J) that match the cervical area of ​​the maxillary first molar in an inward direction. Preferably, the mesial sides 724 and 734 of the elastic wires 72 and 73 have curved folds (K, L) that match the shape of the palatal side of the maxillary mesial dentition. Then, bands 725 and 735 are separately attached to the outside of the distal sides 723 and 733 of the elastic wires 72 and 73 to fix the jaw position correction device body 77 to the maxillary first molars, forming the jaw position correction device 70. These bands can be attached by waxing, attachments (commercially available as lingual sheaths, etc.), etc. Figure 18 shows the jaw position correction device 70 fixed to the right and left maxillary first molars of the wearer by the bands 725 and 735, with the right and left distal sides 723 and 733 of the elastic wires in contact with the vicinity of the cervical area of ​​the right and left first molars, and the central loop 711 located directly below the hard palate. The connecting parts 722 and 732 are the second pressing force generating parts (second pressing force sources), and the bending stress that causes the posterior angles 722ρ1 and 732ρ1' to spread outward is the second pressing force. 【0212】 In the jaw position correction device 70, the length of the right and left elastic wires 72 and 73 to their mesial ends can be shortened to the length of the connecting parts 722 and 732. It is also possible to change the connecting parts 722 and 723 with the elastic wire 71 from "connected" to "continuous" as in this example. Furthermore, the connection between the right and left elastic wires 72 and 73 on the mesial side of the connecting parts 722 and 732 and the two connecting parts can be changed from "continuous" to "connected" as in this example. Moreover, it is possible to make all the connection parts between the three elastic wires (722 and 732, which are the connecting parts of the right and left elastic wires 72 and 733, the elastic wire on the mesial side, the elastic wire on the distal side, and the elastic wire 71) at the connecting parts 722 and 732 "continuous". 【0213】 In this manner, the first and second pressing forces generated in the jaw position correction device 70 and its modified embodiment are applied to the right and left maxillary first molars via the bands (725, 735). The resulting resultant force, accompanied by a buccal distal-proximal rotational moment, combines with the daily occlusal force applied by the wearer (patient) to generate premature contact with cusp interference in the right and left molars. This enables jaw position correction and facial improvement in the wearer (patient), along with adjustment of the dentition by lateral expansion as needed. 【0214】 4. Advanced Concept of the Invention Figures 6-18 disclose embodiments of the orthodontic appliance of the present invention [including the main body (excluding the band) and the progenitor]. These embodiments are preferred examples of the orthodontic appliance of the present invention. However, the essence of the present invention is the realization of a novel approach to orthodontic treatment that incorporates a step of resetting the position of the mandible relative to the maxilla into the overall orthodontic process by "using a jaw position correction appliance that generates premature contact accompanied by cusp interference in the maxillary molars," thereby bringing to the patient not only improvements in temporomandibular joint disorders but also cosmetic effects such as improvements in facial appearance at the skeletal level. This approach is completely absent from conventional orthodontic thinking. The orthodontic appliance of the present invention is a dental appliance for optimizing and realizing the above approach. 【0215】In other words, the generation of premature contact accompanied by cusp interference in the maxillary molars should be reliably achieved. To this end, the force applied to the maxillary molars to which the mounting and fixing portion of the orthodontic appliance of the present invention is fixed is, in principle, the resultant force of a first pressing force having a force source near the hard palate and a second pressing force having a force source at or near the mesial end of the lateral dental arch arrangement portion, and this force is accompanied by a buccal distal-measuring rotational moment, and the shape widens towards the rear. Furthermore, redundancy is ensured to allow the force to be applied in a way that also takes into account the daily occlusal force of the wearer (patient), and a lateral dental arch arrangement portion is provided that can alleviate maxillary protrusion by loading a lateral expansion force on the maxillary canine-second premolar. In addition, a flexible redundancy portion is provided so that the mounting state of the appliance on the wearer (patient) can be changed as needed after mounting. 【0216】 If a person skilled in the art were to come across the disclosure of this invention, it is foreseeable that they would attempt to achieve the effects of this invention by using various products not disclosed in this application that are commonly supplied and used in the field of dental devices, or modifications thereof. However, these attempts fall within the realm of the ingenuity that orthodontists routinely employ. 【0217】 If actions that are merely everyday improvements, as described above, were to fall outside the scope of this invention, it would be extremely unfair to the inventor, who is a pioneer who achieved this invention with a revolutionary idea. 【0218】 Therefore, the orthodontic device of the present invention should be patented in a manner that incorporates the everyday improvements described above. The gist of the present invention for which patent protection is sought has already been explained in detail. 【0219】 5. Patent documents 1-4, which disclose prior art, are all presented in the international search report of the PCT application that forms the basis of this application. Of these, patent documents 3 and 4 are supplementary. Here, we will briefly confirm that patent documents 1 and 2 do not represent novelty or inventive step with respect to the present invention. 【0220】(1) Patent Document 1 The orthodontic appliance of Patent Document 1 is an orthodontic appliance that includes a first extension wire and a second extension wire that contact the proximal and distal parts, and a palatal arch wire that contacts the palate, and is an orthodontic appliance for correcting the outer shape of the patient's (wearer's) palate by applying corrective forces to the patient's (wearer's) alveolar complex (DAC) in the buccal, labial, and lateral directions, that is, forces that expand the entire dental arch from the inside out, and is mainly used in the leveling stage (described later) of dynamic treatment. 【0221】 In contrast, the orthodontic device of the present invention, with "improvement of jaw position" as its fundamental objective, actively induces premature contact accompanied by cusp interference and releases the occlusal relationship, thereby temporarily freeing the position of the mandible that is restricted by the maxillary dentition. At the same time, it utilizes the daily occlusal force as a means to move the crowns of the maxillary molars buccally, thereby non-invasively moving the maxilla to an appropriate position, and as a result, it is a jaw position correction device that can improve facial features at the skeletal level. Moreover, the orthodontic device of the present invention is primarily intended for use in the jaw position and facial appearance improvement step, which is a new treatment step before entering into dynamic treatment in orthodontics. 【0222】 In terms of constituent elements, the orthodontic appliance of the present invention does not include a means for expanding the area between the right and left upper central incisors and lateral incisors of the wearer (patient), which is one of the essential requirements of the orthodontic appliance of Patent Document 1. 【0223】 Therefore, it can be confirmed that the present invention is not described in Patent Document 1 and is novel to Patent Document 1. 【0224】 Furthermore, the orthodontic device of the present invention aims to generate premature contact with cusp interference in the maxillary molars by using a dental device in order to correct the jaw position, and the constituent elements of the present invention are provided as a means to achieve this problem. In contrast, the orthodontic device of Patent Document 1 is an orthodontic device for correcting the outer shape of the patient's (wearer's) palate by applying a force that expands the entire dental arch from the inside out, and is completely different from the present invention in terms of both the problem and the means to solve it, and there is not even a suggestion of the present invention in Patent Document 1. 【0225】 Therefore, it can be confirmed that the present invention has inventive step compared to Patent Document 1. 【0226】 (2) Patent Document 2 Patent Document 2 discloses an orthodontic appliance which is preferably integrally constructed from the same material, specifically a Ni-Ti alloy. Among these, it has been pointed out that the embodiment of Example 4 (Patent Document 2 paragraphs

[0021] -

[0024] : hereinafter referred to as "Document 2 Example 4") disclosed in Figures 7 and 8 is related to the present invention. Document 2 Example 4 is an embodiment in which the maxillary teeth 5 and 6 (maxillary molars) that are shifted inward are moved outward by the bending stress of member 20. Member 40 along the dental arch is continuous with member 20 and teeth 5 and 6 for the purpose of assisting in the attachment of the appliance and mitigating the orthodontic force. 【0227】 The differences between the orthodontic device of the present invention and the embodiment 4 of Patent Document 2 are that (a) there is no means corresponding to the second pressing force generating part, (b) there is no redundancy between the member 20 and the teeth 5 and 6, and (c) there is no means for adjusting the three-dimensionality of the device corresponding to the bending redundancy part. 【0228】 In (a) and (b) above, the structure of Patent Document 2 Embodiment 4 does not allow for the application of a buccal distal-proximal rotational moment and an upward component to teeth 5 and 6, but merely applies a force that moves teeth 5 and 6 laterally and horizontally. This is because, since the aim is to correct a dental arch in which teeth 5 and 6 are excessively positioned inward, applying the above rotational moment would naturally hinder the desired correction. For this purpose, member 40 supports member 20 so that the direction in which the corrective force is applied does not deviate from laterally and horizontally. Furthermore, the corrective force due to the stress on member 20 is direct on teeth 5 and 6, and although it is somewhat mitigated by member 40, it is difficult to apply force as "finely" as in the orthodontic device of the present invention. Moreover, since there is no means to adjust the three-dimensionality of the device, after the device is attached, the corrective force only moves straight laterally (outward), and it is not possible to subtly control the force or direction. Therefore, even if one tries to generate premature contact with occlusal interference in accordance with the basic concept of the present invention using the orthodontic device of Patent Document 2 Embodiment 4, it is not possible to achieve anything beyond accidental levels. 【0229】 Thus, the configuration of the orthodontic device described in Patent Document 2, Example 4, differs from that of the present invention, and this difference represents a fundamental difference in the technical concept of the orthodontic device of the present invention. 【0230】 Therefore, the orthodontic device of the present invention is neither described nor suggested in Patent Document 2, and it can be confirmed that the present invention is novel to Patent Document 2. 【0231】 The orthodontic device of the present invention aims to generate premature contact with cusp interference in the maxillary molars by using a dental device in order to correct the jaw position, and the constituent elements of the present invention are provided as a means to achieve this problem. In contrast, the orthodontic device of Patent Document 2, Example 4 is an orthodontic device for applying a straight force to move teeth 5 and 6 that are biased inward outward in order to correct them, and its problem and means of solution are completely different from those of the present invention. 【0232】 Therefore, it can be confirmed that the present invention has inventive step compared to Patent Document 2. 【0233】 6. Implementation of the Invention in Orthodontic Clinical Practice The inventor is an orthodontist and has achieved the expected results by using the orthodontic device of the present invention in actual clinical practice. The use of the orthodontic device of the present invention contributes to jaw position correction, such as the healing of temporomandibular joint disorders in patients, and to orthodontic treatment, such as the alleviation of maxillary prognathism, as well as having a remarkable cosmetic effect on the patient's facial appearance. This is because the use of the orthodontic device of the present invention corrects the patient's jaw position and causes the skull to rotate forward on an axis around the jawbone. 【0234】 The inventors may, if necessary, disclose the clinical results of the orthodontic device of the present invention, particularly the actual improvement of the visual appearance of the face. 【0235】 7. Method using the orthodontic appliance of the present invention The following method using the orthodontic appliance of the present invention is provided. 【0236】 Firstly, there is a method for correcting jaw position, which includes the following steps (1)-(4). 【0237】A method for correcting jaw position, comprising: (1) attaching the orthodontic appliance of the present invention to the maxillary dentition of the wearer (patient); (2) moving the orientation of the crowns of the maxillary right and left molars toward the buccal side to induce malocclusion between the maxillary and mandibular molars, thereby creating a state in which the maxillary and mandibular occlusion are misaligned; (3) resetting the mandible to the correct position and aligning the position of the maxillary with it, thereby making the centric relation and centric occlusion position coincide; and (4) correcting the jaw position of the wearer. 【0238】 Secondly, there is a method for improving facial features, which includes the following steps (1)-(4). 【0239】 A method for improving facial appearance, comprising: (1) attaching the orthodontic appliance of the present invention to the maxillary dentition of a wearer (patient); (2) moving the orientation of the crowns of the maxillary right and left molars toward the buccal side to induce malocclusion between the maxillary and mandibular molars, thereby creating a state in which the maxillary and mandibular occlusion are misaligned, while simultaneously moving the maxilla in a forward rotational direction; (3) resetting the mandible to the correct position and aligning the position of the maxilla with it, thereby aligning the centric relation and centric occlusion, and improving the facial appearance of the wearer due to the forward rotational movement of the maxilla; 【0240】1: Nose 2: Upper lip 3: Lower lip 4: Mandible 10: Oral cavity proper 11: Maxilla 111: Vestibule 112: Alveolar process of maxilla 113: Maxillary arch 1131: Right central incisor 1131': Left central incisor 1132: Right incisor 1132': Left incisor 1133: Right canine 1133': Left canine 1134: Right first premolar 1134': Left first premolar 1135: Right second premolar 1135': Left second premolar 1136, 20, 20': Right first molar 1136Δ: Palatal gingiva of right first molar 1136': Left first molar 1136Δ': Palatal gingiva of left first molar 1137: Right second molar 1137': Left second molar 1138: Right third molar (wisdom tooth) 1138': Left third molar (wisdom tooth) 114: Hard palate 115: Soft palate 116: Transverse palatine fold 117: Incisive papilla 118: Midline (palatine raphe) 119: Palatine fovea 12: Mandibular region 121: Mandibular alveolar region 122: Tongue 123: Lower dental arch 200: Region near the midline (cross-section) 201: Maxillary alveolar process 21: Root (maxillary right molar) 22: Crown (maxillary right molar) 221: Functional cusp (maxillary right molar) 222: Non-functional cusp (maxillary right molar) 30: Mandibular right first molar 31: Root portion (mandibular right molar) 32: Crown portion (mandibular right molar) 321: Functional cusp (mandibular right molar) 322: Non-functional cusp (mandibular right molar) 40: Maxilla (left side) 41: Maxillary body 42: Zygomatic process 43: Frontal process 50, 60, 70: Jaw position correction appliance 501: Right side of jaw position correction appliance 5011: Right distal end 502: Left side of jaw position correction appliance 5012: Left distal end 503: Central continuity point 511, 611: Central loop 5111: Right end of central loop 5112: Left end of central loop 512: Right loop 5121: Mesial end of right loop 5121Φ: Bending angle at the mesial end of right loop 5121φ1: Horizontal component of the bending angle at the mesial end of right loop 5122: Centrifugal end of the right loop 513,613: Left loop 5131: Mesial end of left loop 5131Φ: Bending angle at the mesial end of left loop 5131φ1: Horizontal component of the bending angle at the mesial end of left loop 5131φ2: Vertical component of the bending angle at the mesial end of left loop 5132: Centrifugal end of left loop 521: Right side guide 522: Left side guide 522θ3: Vertical angular component formed by the left side guide 531: Right large bend 531Θ: Bending angle at the right large bend 531θ1, 531θ1': Horizontal component of the bending angle at the right large bend 531θ2: Vertical component of the bending angle at the right large bend 532, 632: Left large bend 532Θ: Bending angle at the left large bend 532θ1: Horizontal component of the bending angle at the left large bend 532θ2: Vertical component of the bending angle at the left large bend 541: Right central guide section 542: Left central guide section 55: Right band 551: Right band attachment section 56, 66: Left band 561: Left band attachment section 57, 77: Main body of jaw position correction device 571, 771: Planar protrusion of main body of jaw position correction device 572: Three-dimensional protrusion of main body of jaw position correction device 71, 72, 73: Elastic wires 711: Central loop 721: Right loop 722: Right connecting section 722ρ1: Right posterior angle 723: Distinctive side of right elastic wire 724: Mesial side of right elastic wire 725: Right band 731: Left loop 732: Left connecting section 732ρ1': Left posterior angle 733: Distinctive side of left elastic wire 734: Mesial side of left elastic wire 735: Left band 23, 33, 44, A, A', B, C, D, E, F, F', M, M': Arrows G, G', H, J, K, L: Fold h: Height from the hard palatal surface to the dotted line II-II w: Width centered on the length of the midline, which serves as a guideline for where the first pressing force source should be located I-I: Axis along the midline of the hard palate II-II: Dotted line connecting the palatal cervical portions of the distal interproximal surfaces of the right and left maxillary first molars,

Claims

1. A jaw position correction appliance, which is attached to the maxilla and has a configuration as a single unit or as a set, comprising a lateral dentition arrangement unit, a first pressure generating unit, a second pressure generating unit, and a resultant force transmission unit; (1) The lateral dentition arrangement unit is positioned along the palatal side of the maxillary dentition in the right and left maxillary dentition of the wearer, in a region where the longest range is from the mesial adjacent surface of the canine tooth to the distal adjacent surface of the second premolar, and the shortest range is from the distal adjacent surface of the first premolar to the distal crown bulge of the second premolar; (2) The first pressure generating unit is continuous with or connected to the right and left lateral dentition arrangement units, and (a) intersects with a region near a line projected onto the midline of the hard palate, which is higher in the oral cavity than the cervical region of the area from the canine tooth to the second premolar, or (b) comprising a first pressing force transmission portion and a first pressing force source that is continuous with or connected to the above-mentioned adjacent region and intersects with the above-mentioned adjacent region; (3) The first pressing force generating portion is capable of generating a first pressing force in the orthodontic appliance that laterally expands the maxillary dentition or maxillary teeth in a region whose longest extent is from the mesial adjacent surface of the canine tooth to the distal adjacent surface of the second premolar, and whose shortest extent is from the distal adjacent surface of the first premolar to the distal crown bulge of the second premolar; (4) The second pressing force generating portion is present in the continuous or connected portion between the right and left lateral dentition arrangement portions and one end of the right and left first pressing force transmission portions, and is capable of generating a force in the orthodontic appliance that causes the posterior angle formed by the continuous or connected portion to widen as a second pressing force; (5) The above-mentioned force transmission section includes, on both the left and right sides, or one of them, a bent redundant section of elastic wire, one end of which is continuous with or connected to the distal ends of the left and right lateral dental arch arrangement sections, and which is positioned along the region from the palatal cervical to the root of the wearer's tooth. Furthermore, it includes a mounting and fixing section that is connected with or continuous with the distal side of the bent redundant section, and is mounted and fixed to one or both of the right and left maxillary molars or second premolars via the mounting and fixing section;A jaw position correction device that works by applying the pressing force generated from both or either of the first and second pressing force generating units to both or either of the maxillary molars or second premolars via the combined force transmission unit, thereby moving the orientation of the crowns of both or one of the maxillary molars toward the buccal side and generating premature contact accompanied by cusp interference between the maxillary molars and the mandibular molars.

2. The jaw position correction device according to claim 1, wherein the region in the left and right maxillary dentitions in which the lateral dentition arrangement portion is positioned corresponds to the region from the crown bulge of the canine tooth to the crown bulge of the second premolar, or the region corresponds to the region from the crown bulge of the first premolar to the crown bulge of the second premolar.

3. The jaw position correction device according to claim 1, wherein the highest position of the first pressing force generating part is in contact with or close to the vicinity of the midline of the wearer's hard palate.

4. The jaw position correction device according to claim 1, wherein the pressing force generated in the first pressing force source is the stress on elastic deformation in a member that is continuous with or connected to the other end of the first pressing force transmission unit.

5. The jaw position correction device according to claim 4, wherein the stress for elastic deformation is the stress caused by the narrowing of the gap in the open portion on one side of a linear member having an open portion on either the anterior or posterior side that is substantially symmetrical with respect to the midline, and the other side having an encircling shape.

6. The jaw position correction device according to claim 5, wherein one side is the anterior side and the other side is the posterior side.

7. The jaw position correction device according to claim 1, wherein the force generated in the second pressing force generating section, which tends to widen the angle to the rear, is a stress against elastic deformation.

8. The jaw position correction device according to any one of claims 1 to 7, wherein both or either of the lateral dental arch arrangement portion and the first pressing force transmission portion are made of elastic wire.

9. A portion of the jaw position correction device according to claim 1, which does not include the mounting and fixing portion.

10. A prototype of a portion of a jaw position correction device according to claim 9, wherein the portion of the jaw position correction device is a prototype in which the three-dimensional shaping for fitting as a jaw position correction device to the shape of the wearer's maxilla has not yet been completed.

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