Dental system for occlusal adjustment and method of generating same

Abstract

The embodiment of the invention provides a dental system for occlusal adjustment and a generation method, the dental system for occlusal adjustment comprises N correction instruments for gradually realizing a correction plan step by step, each of the N correction instruments is provided with an upper jaw shell-shaped body for accommodating an upper jaw dentition and a lower jaw shell-shaped body for accommodating a lower jaw dentition, the N upper jaw shell-shaped bodies are respectively provided with an adjusting part for opening the occlusion height of anterior teeth, the N lower jaw shell-shaped bodies are respectively provided with a geometric structure for applying a pressing force to the lower jaw teeth, and the N lower jaw shell-shaped bodies are used for completing the pressing movement in the correction plan step by step for the teeth in the anterior tooth area of the lower jaw. The N adjusting parts enable the relative position relation of the upper and lower jaw teeth in the anterior tooth area to be consistent in the vertical direction in the correction process, and N is a natural number greater than or equal to 2.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of oral orthodontics, and in particular to a dental system for occlusal adjustment and a method for generating the same. Background Art

[0002] Bad oral habits are one of the most common causes of malocclusion. According to statistics from Peking University Medical School, it accounts for about 1 / 4 of the causes of all types of malocclusion. Deep overbite is a malocclusion caused by abnormal vertical development of the maxillary and mandibular dental arches and / or maxillary and mandibular bones. It manifests as the incisor of the upper front teeth covering more than one-third of the labial length of the lower front teeth crown, or the incisor of the lower front teeth occluding more than one-third of the lingual side of the upper front teeth crown, making it easy for patients to bite their gums, leading to periodontitis of the anterior teeth and facial joint diseases. For most malocclusion patients, correction of deep overbite may be the first step in the entire dental treatment process, and opening the bite is the key to correcting deep overbite.

[0003] The existing technology usually uses maxillary removable appliances to keep the height of the anterior alveolar bone unchanged, focusing on raising the height of the posterior teeth, adjusting the jaw pads one by one from the last tooth, so that each pair of teeth can be extended and contacted, and after the posterior teeth are raised, the lingual misalignment of the anterior teeth and the distalization of the posterior teeth are corrected. There is also a method of setting a flat guide on the lingual side of the maxillary anterior teeth area, but this method requires the flat guide made of metal and resin to be fixed on the maxilla, which not only causes some teeth to be suspended after wearing, but also has a certain impact on the patient's chewing, and the patient has a strong foreign body sensation. In the prior art, there is also the use of invisible shell-shaped appliances to add flat guide structures to correct deep overbite. However, whether it is a maxillary removable appliance or an invisible shell-shaped appliance, a flat guide structure is used to fix the maxillary anterior teeth, so as to achieve the use of the flat guide structure to complete the depression of the mandibular anterior teeth. When using the flat guide structure for depression, the prior art usually adjusts the magnitude of the depression force by adjusting the height of the flat guide structure in the vertical direction. Then, during the correction process, it is necessary to frequently return to the hospital to observe the current depression of the teeth and adjust the height of the flat guide structure. In this way, not only the final correction result cannot be guaranteed, but also because the height of the flat guide structure is constantly adjusted during the correction process, the vertical occlusal relationship of the teeth in the upper and lower anterior teeth area is also constantly passively adjusted. That is to say, after the correction is completed, it is difficult to ensure that the vertical relationship between the upper and lower jaws of the patient is in the correct position, and additional correction steps need to be added later, which increases the correction cycle and reduces the correction efficiency.

[0004] Therefore, it is of great significance to study a dental system that takes into account both correction accuracy and correction stability. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a dental system for occlusal adjustment and a method for generating the same, so as to make the correction results more accurate and stable by improving the structure of a series of orthodontic appliances.

[0006] To achieve the above-mentioned objectives, an embodiment of the present application provides a dental system for occlusal adjustment, comprising a series of corrective appliances, wherein the series of corrective appliances are designed to achieve the depression movement of the teeth in the mandibular anterior area in steps; the series of corrective appliances include a first corrective appliance corresponding to the first stage, wherein the first corrective appliance includes a first maxillary shell-like body for accommodating the maxillary teeth and a first mandibular shell-like body for accommodating the mandibular teeth, and the lingual side of the anterior area of ​​the first maxillary shell-like body is provided with a first adjustment portion for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior areas, and when worn, the first adjustment portion has a first distance from the incisal end of the maxillary anterior teeth, and the part of the tooth receiving cavity of the first mandibular shell-like body for accommodating the teeth in the anterior area is designed to have a geometric structure that achieves the depression movement amount of the teeth in the anterior area corresponding to the first stage. Structure; the series of orthodontic devices include a second orthodontic device corresponding to the second stage, the second orthodontic device includes a second maxillary shell-shaped body for accommodating maxillary teeth and a second mandibular shell-shaped body for accommodating mandibular teeth, the second maxillary shell-shaped body is provided with a second adjustment portion on the lingual side of the anterior area of ​​the second maxillary shell-shaped body for adjusting the vertical distance between the teeth in the upper and lower anterior areas when worn, the second adjustment portion is at a second distance from the incisal end of the maxillary anterior teeth, the second mandibular shell-shaped body is used to accommodate part of the tooth receiving cavity of the anterior area teeth and is designed to have a geometric structure that realizes the depression and movement amount of the teeth in the anterior area corresponding to the second stage; wherein the second stage is any stage in the subsequent stages of the first stage, the first distance is equal to the second distance so that the teeth in the upper and lower anterior areas are always kept in the same occlusal position during the correction process.

[0007] Preferably, when worn, the lowest point of the first adjustment portion in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth, and the lowest point of the second adjustment portion in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth.

[0008] Preferably, the first distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the position corresponding to the first adjustment portion; the second distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the position corresponding to the second adjustment portion.

[0009] Preferably, when worn, the lowest point of the first adjustment portion in the vertical direction is located on the jaw side opposite to the incisal end of the maxillary anterior teeth, and the lowest point of the second adjustment portion in the vertical direction is located on the jaw side opposite to the incisal end of the maxillary anterior teeth.

[0010] Preferably, the first distance is less than or equal to 0.2 mm and / or the second distance is less than or equal to 0.2 mm.

[0011] Preferably, the single-step depression amount of the teeth in the mandibular anterior region corresponding to the orthodontic appliance in each stage of the series of orthodontic appliances is between 0.1 mm and 0.2 mm.

[0012] Preferably, the series of orthodontic appliances are also designed to achieve the lifting and movement of the teeth in the posterior region of the mandible in steps.

[0013] Preferably, the total movement M of the series of corrective appliances to level the mandibular SPEE curve is the sum of the total movement of the teeth in the anterior region of the mandible and the total movement of the teeth in the posterior region of the mandible.

[0014] Preferably, the series of corrective appliances cause the total amount of depression of the teeth in the mandibular anterior region to be 1 / 3-1 / 2 of the total amount of movement M required to level the mandibular SPEE curve.

[0015] Preferably, the series of orthodontic appliances enable the total amount of elevation movement of the teeth in the mandibular posterior region to be 1 / 2-2 / 3 of the total amount of movement M required to level the mandibular SPEE curve.

[0016] Preferably, the single-step elevation of the teeth in the mandibular posterior region corresponding to the orthodontic appliances in each stage of the series of orthodontic appliances is between 0.1 mm and 0.2 mm.

[0017] Preferably, the tooth receiving cavity of the first mandibular shell-like body and / or the second mandibular shell-like body for accommodating anterior teeth has a height in the vertical direction that is smaller than the height of the crown of the tooth accommodated therein.

[0018] Preferably, the height difference between the tooth receiving cavity for accommodating anterior teeth of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body and the crown of the tooth accommodated therein in the vertical direction is between 0.1 mm and 0.2 mm.

[0019] Preferably, the series of corrective devices also include a depression attachment provided on the surface of the canines or molars adjacent to the anterior teeth, and when worn, the depression attachment applies a vertical downward force to the first mandibular shell-like body and / or the second mandibular shell-like body so that the first mandibular shell-like body and / or the second mandibular shell-like body applies a depression force to the anterior teeth.

[0020] Preferably, the surface of the depression attachment adjacent to the gingival end is a concave curved surface that is recessed toward the opposite jaw.

[0021] Preferably, the first mandibular shell-shaped body and / or the second mandibular shell-shaped body have a depression accommodating cavity consistent with the contour of the depression accessory at a position corresponding to the depression accessory.

[0022] Preferably, when worn, the concave curved surface applies a vertical downward force to the depressed accommodating cavity.

[0023] Preferably, the tooth receiving cavity of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body for accommodating the teeth in the posterior region has a geometric structure that applies a lifting force to the teeth in the posterior region.

[0024] Preferably, the series of orthodontic appliances further comprises a raised attachment provided on the buccal side of the teeth in the posterior region, the length of the raised attachment in the mesiodistal direction being 1 / 2-2 / 3 of the length of the corresponding tooth in the mesiodistal direction.

[0025] Preferably, the first mandibular shell-like body and / or the second mandibular shell-like body have a raised accommodating cavity consistent with the contour of the raised accessory at the position corresponding to the raised position, and when worn, the raised accessory interacts with the raised accommodating cavity so that the teeth provided with the raised accessory are subjected to a raised force.

[0026] Preferably, the tooth receiving cavity of the first mandibular shell-like body and / or the second mandibular shell-like body corresponding to the raised teeth in the posterior tooth area has a force application point formed inwardly concave toward the tooth near the gingival end.

[0027] Preferably, the first adjustment portion includes a cavity structure formed by the lingual side surface of the anterior tooth area of ​​the first maxillary shell-like body extending first toward the opposite jaw direction and then toward the teeth of the posterior tooth area; the second adjustment portion includes a cavity structure formed by the lingual side surface of the anterior tooth area of ​​the second maxillary shell-like body extending first toward the opposite jaw direction and then toward the teeth of the posterior tooth area.

[0028] Preferably, the first adjustment portion includes a cavity structure formed by a lingual side surface of at least one tooth receiving cavity in the anterior tooth region of the first maxillary shell-like body partially protruding toward the distal direction; the second adjustment portion includes a cavity structure formed by a lingual side surface of at least one tooth receiving cavity in the anterior tooth region of the second maxillary shell-like body partially protruding toward the distal direction.

[0029] Preferably, the surface of the cavity structure adjacent to the opposing jaw is a plane parallel to the occlusal surface.

[0030] Preferably, the plane has a bite mark structure for locating the position of the mandible, and the bite mark structure has the same shape as the teeth in the anterior area of ​​the opposing jaw.

[0031] Preferably, the surface of the cavity structure adjacent to the opposing jaw is an inclined surface for guiding the mandible to move forward.

[0032] Preferably, the mechanical strength of the first adjustment portion is greater than the mechanical strength of the first maxillary shell-like body and / or the mechanical strength of the second adjustment portion is greater than the mechanical strength of the second maxillary shell-like body.

[0033] Preferably, the first adjustment portion and / or the second adjustment portion further includes a filling piece located in the cavity structure.

[0034] Preferably, the lingual end of the cavity structure adjacent to the opposing jaw surface extends toward the palate to form a reinforcement portion 113 for resisting deformation of the cavity structure caused by occlusion.

[0035] Preferably, when worn, at least a portion of the reinforcement portion 113 fits against the upper palate and is consistent with the curvature of the upper palate.

[0036] Preferably, the series of orthodontic devices include a third orthodontic device corresponding to the third stage, the third orthodontic device including a third maxillary shell-shaped body for accommodating maxillary teeth and a third mandibular shell-shaped body for accommodating mandibular teeth, the lingual side of the anterior tooth area of ​​the third maxillary shell-shaped body is provided with a third adjustment portion for adjusting the vertical distance between the teeth in the upper and lower anterior tooth areas, when worn, the third adjustment portion has a third distance from the incisal end of the maxillary anterior teeth, the third stage is any stage subsequent to the second stage, and the third distance is smaller than the second distance.

[0037] Preferably, the series of orthodontic devices include a fourth orthodontic device corresponding to the fourth stage, the fourth orthodontic device including a fourth maxillary shell-like body for accommodating maxillary teeth and a fourth mandibular shell-like body for accommodating mandibular teeth, the fourth stage being a subsequent stage of the second stage, the fourth maxillary shell-like body and the fourth mandibular shell-like body having a geometric structure enabling the wrapped teeth to move from the dental arrangement of the previous stage to a target dental arrangement; wherein, in the target dental arrangement, the incisal edge of the upper anterior teeth covers the labial surface of the lower anterior teeth by no more than 1 / 3.

[0038] The embodiment of the present application also provides another dental system for occlusal adjustment, including N corrective appliances that gradually implement the correction plan in steps, each of the N corrective appliances has a maxillary shell-like body that accommodates the maxillary dentition and a mandibular shell-like body that accommodates the mandibular dentition, the N maxillary shell-like bodies each have an adjustment portion that opens the occlusal height of the anterior teeth, and the N mandibular shell-like bodies have a geometric structure that applies a depression force to the mandibular teeth, wherein the N mandibular shell-like bodies are used to achieve the depression movement of the teeth in the mandibular anterior area in the correction plan in steps, and the N adjustment portions keep the relative positional relationship of the upper and lower mandibular teeth in the anterior area consistent in the correction process, and N is a natural number greater than or equal to 2. Preferably, the single-step depression amount of the mandibular anterior area teeth corresponding to the corrective appliance in each stage of the N corrective appliances that gradually implement the correction plan in steps is between 0.1mm and 0.2mm.

[0039] Preferably, the N orthodontic appliances are also designed to realize the lifting movement of the teeth in the mandibular posterior area in steps. Preferably, the total movement amount M of the N orthodontic appliances to level the mandibular SPEE curve is the sum of the total movement amount of the depression movement of the teeth in the mandibular anterior area and the total movement amount of the lifting movement of the teeth in the mandibular posterior area.

[0040] Preferably, the total amount of depression movement of the teeth in the mandibular anterior region caused by the N corrective appliances is 1 / 3-1 / 2 of the total amount of movement M required to level the mandibular SPEE curve.

[0041] Preferably, the total amount of movement of the teeth in the mandibular posterior region caused by the N corrective appliances is 1 / 2-2 / 3 of the total amount of movement M required to flatten the mandibular SPEE curve.

[0042] An embodiment of the present application also provides a method for generating a dental system for occlusal adjustment, comprising:

[0043] Obtain the initial SPEE curve depth of the current patient's dentition, and obtain the target SPEE curve depth at the correction target position and the target opening height of the anterior teeth area according to the correction plan;

[0044] Determine a series of digital dental models corresponding to corrective appliances; wherein, the series of corrective appliances include a first corrective appliance corresponding to the first stage, the first corrective appliance includes a first maxillary shell-like body for accommodating maxillary teeth and a first mandibular shell-like body for accommodating mandibular teeth, the first maxillary shell-like body is provided with a first adjustment portion for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior areas on the lingual side of the anterior area, the digital model corresponding to the first adjustment portion is set in vertical height according to the target opening height of the anterior area, and the first mandibular shell-like body is used to accommodate a part of the tooth receiving cavity of the anterior area teeth, which is designed to have a geometric structure that realizes the amount of depression and movement of the teeth in the anterior area corresponding to the first stage; the series of corrective appliances include a second corrective appliance corresponding to the second stage, and the second corrective appliance includes The invention comprises a second maxillary shell-like body for accommodating maxillary teeth and a second mandibular shell-like body for accommodating mandibular teeth, a second adjustment part for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior teeth regions is provided on the lingual side of the anterior teeth region of the second maxillary shell-like body, the vertical height of the digital model corresponding to the second adjustment part is set according to the target opening height of the anterior teeth region, and the part of the tooth receiving cavity of the second mandibular shell-like body for accommodating the teeth in the anterior teeth region is designed to have a geometric structure for realizing the depression movement amount of the teeth in the anterior teeth region corresponding to the second stage; wherein the second stage is any stage in the subsequent stages of the first stage; the depression amount of the teeth in the anterior teeth region in the digital dental jaw model of the shell-like body for accommodating the mandibular teeth corresponding to each stage is designed according to the SPEE curve depth and the target SPEE curve depth;

[0045] Manufacturing dental systems: Manufacturing a series of orthodontic appliances based on the digital jaw models corresponding to the series of orthodontic appliances.

[0046] Preferably, the manufacturing of the dental system comprises: manufacturing a physical model corresponding to the digital dental and jaw models corresponding to the series of corrective instruments by means of additive manufacturing, and manufacturing the series of corrective instruments by means of hot pressing film according to the physical model.

[0047] Preferably, the manufacturing dental system comprises: generating digital models of the series of corrective appliances according to digital jaw models corresponding to the series of corrective appliances, and manufacturing the series of corrective appliances by additive manufacturing based on the digital models of the series of corrective appliances.

[0048] The dental system for occlusal adjustment and the method for generating the same provided by the present invention have at least the following beneficial effects compared with the prior art:

[0049] The dental system for occlusal adjustment in the present application gradually achieves the correction of deep overbite cases through multiple dental instruments according to the correction plan. During the correction process, the adjustment part in the dental instrument in each step is designed so that in the process of gradually lowering the teeth in the mandibular anterior area, the vertical occlusal relationship of the upper and lower mandibular anterior teeth remains unchanged, thereby ensuring that the occlusal relationship of the upper and lower mandibular anterior teeth can continue to remain in the correct position after the correction is completed. In addition, the step-by-step lowering of the mandibular anterior teeth can not only control the movement of the teeth, but also meet the physiological limit of the periodontal membrane adaptation and reconstruction by designing the step-by-step movement amount, thereby obtaining a better tooth movement effect.

[0050] The adjustment parts provided in multiple dental instruments in the present application can not only stably maintain the teeth in the upper and lower mandibular anterior areas in the same vertical occlusal relationship during the correction process, but also provide auxiliary depression force for depressing the mandibular anterior teeth, and can also enhance the seating effect of the mandibular shell-like body, increase the correction expression rate of the mandibular shell-like body, and improve the correction effect.

[0051] In addition, the generation method of the dental system for occlusal adjustment provided in the present application will pre-design the target opening height of the anterior teeth area and design the step-by-step movement amount according to the depth of the initial SPEE curve, thereby making the correction plan safer and more effective, and the correction results more accurate and controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0053] Figure 1is a schematic diagram of a pair of correction appliances in a dental system for occlusal adjustment in various embodiments of the present application before and after being worn;

[0054] Figure 2 is a schematic diagram of the structure of the first correction device and the second correction device in some embodiments of the present application;

[0055] Figure 3 is a schematic diagram of the structure of the first correction device and the second correction device in some embodiments of the present application;

[0056] Figure 4 yes Figure 3 A cross-sectional view of the first correction device and the second correction device along the line AA';

[0057] Figure 5 is a schematic diagram of the structure of the first maxillary shell-like body and the second maxillary shell-like body in some embodiments of the present application;

[0058] Figure 6 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0059] Figure 7 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0060] Figure 8 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0061] Fig. 9 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0062] Fig.10 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0063] Fig.11 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0064] Fig.12 is a schematic structural diagram of the first mandibular shell-like body in some embodiments of the present application;

[0065] Fig.13 is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0066] Fig.14 is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0067] Fig.15 is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0068] Fig.16is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0069] Fig.17 is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0070] Fig.18 is a schematic structural diagram of the first maxillary shell-like body in some embodiments of the present application;

[0071] Fig.19 is a schematic diagram of the structure of a series of correction devices in some embodiments of the present application;

[0072] Fig. 20 is a schematic diagram of the structure of a series of correction devices in some embodiments of the present application;

[0073] Fig.21 is a flow chart of a method for generating a dental system for occlusal adjustment in some embodiments of the present application;

[0074] Fig. 22 It is a schematic diagram of the structure of a graphics processor provided in one embodiment of the present application. DETAILED DESCRIPTION

[0075] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, each embodiment of the present application will be described in detail below in conjunction with the accompanying drawings. However, it will be appreciated by those skilled in the art that in each embodiment of the present application, many technical details are proposed in order to enable the reader to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical scheme claimed in the present application can also be implemented. The division of the following embodiments is for the convenience of description, and the specific implementation of the present application should not constitute any limitation, and the various embodiments can be combined with each other and referenced to each other without contradiction.

[0076] The "teeth in the posterior region" mentioned in various embodiments of the present application are defined according to the classification of teeth in the second edition of "Introduction to Stomatology" published by Peking University Medical Press, pages 36-38, including premolars and molars, which are displayed as teeth 4-8 by the FDI notation, and teeth 1-3 by the anterior region FDI notation. The teeth in the anterior region include central incisors, lateral incisors, and canines. In addition, for the teeth in the deciduous tooth stage, the "teeth in the posterior region" are defined according to the classification of deciduous teeth in the second edition of "Introduction to Stomatology" published by Peking University Medical Press, pages 40-41, including three categories: deciduous incisors, deciduous canines, and deciduous molars, among which deciduous incisors include deciduous central incisors and deciduous lateral incisors, and deciduous molars include first deciduous molars and second deciduous molars.

[0077] The shell-like body is provided with a number of cavities for accommodating multiple teeth, and is divided into lingual surface, labial surface, mesial surface and distal surface. Among them, "lingual surface" is named according to the names of various surfaces of the crown in the 2nd edition of "Introduction to Stomatology" published by Peking University Medical Press, pages 35-36, where the labial surface and buccal surface are the sides of the crown of the front teeth close to the lips, and the sides of the crown of the teeth in the posterior teeth area close to the cheek are called buccal surfaces. The lingual surface is the side of the crown of the front teeth and the posterior teeth area close to the tongue, collectively referred to as the lingual surface. The mesial surface and the distal surface are the two surfaces adjacent to the crown and the adjacent teeth, collectively referred to as the adjacent surfaces. The side closer to the midline of the face is called the mesial surface, and the side farther from the midline of the face is called the distal surface.

[0078] The dental system in each embodiment of the present application includes a series of correction devices that gradually achieve the depression and movement of the mandibular anterior teeth in deep overbite cases under a preset vertical occlusal relationship, making the correction process safer and more reliable, and the correction results more accurate and controllable.

[0079] To achieve the above-mentioned purpose, an embodiment of the present application provides another dental system for occlusal adjustment, including N corrective appliances that gradually implement a treatment plan in steps, each of the N corrective appliances having a maxillary shell-like body for accommodating the maxillary dentition and a mandibular shell-like body for accommodating the mandibular dentition, the N maxillary shell-like bodies each having an adjustment portion for opening the occlusal height of the anterior teeth, the N mandibular shell-like bodies having a geometric structure for applying a depression force to the mandibular teeth, wherein the N mandibular shell-like bodies are used to realize the depression movement of the teeth in the mandibular anterior area in the treatment plan in steps, the N adjustment portions keep the relative positional relationship of the upper and lower mandibular teeth in the anterior area consistent in the vertical direction during the treatment process, and N is a natural number greater than or equal to 2. Refer to Attachment Figure 1 The figure shows the adjustment of the vertical relationship of the front teeth area after the patient wears the orthodontic device in each embodiment of the present application.

[0080] Please refer to Figures 2 to 4The series of orthodontic devices shown in the figure at least include orthodontic devices corresponding to two stages, specifically including a first orthodontic device 100 corresponding to the first stage, the first orthodontic device 100 includes a first maxillary shell-shaped body 11 for accommodating maxillary teeth and a first mandibular shell-shaped body 12 for accommodating mandibular teeth, the first maxillary shell-shaped body 11 is provided with a first adjustment portion 111 on the lingual side of the anterior area for adjusting the vertical distance between the teeth in the upper and lower anterior areas when worn, the first adjustment portion 111 has a first distance from the incisal end of the maxillary anterior teeth, the first distance can also enable the first adjustment portion 111 to apply an auxiliary depression force to the teeth in the mandibular anterior area, the first mandibular shell-shaped body 12 is used to accommodate the tooth receiving cavity of the anterior teeth and is designed to have a geometric structure that realizes the depression movement amount of the teeth in the anterior area corresponding to the first stage; the series of orthodontic devices include a second orthodontic device 100 corresponding to the second stage Corrective device 200, the second corrective device 200 includes a second maxillary shell-like body 21 for accommodating maxillary teeth and a second mandibular shell-like body 22 for accommodating mandibular teeth, the second maxillary shell-like body 21 is provided with a second adjustment portion 211 on the lingual side of the anterior area for adjusting the vertical distance between the teeth in the upper and lower anterior areas when worn, the second adjustment portion 211 is at a second distance from the incisal end of the maxillary anterior teeth, the second distance can also enable the second adjustment portion 211 to apply an auxiliary depression force to the teeth in the mandibular anterior area, the second mandibular shell-like body 22 is used to accommodate a portion of the tooth receiving cavity of the anterior teeth and is designed to have a geometric structure that realizes the depression movement amount of the teeth in the anterior area corresponding to the second stage; wherein the second stage is any stage in the subsequent stages of the first stage, the first distance is equal to the second distance so that the teeth in the upper and lower anterior areas are always kept in the same occlusal position during the correction process.

[0081] In various embodiments of the present application, the first correction device 100 corresponding to the first stage and the second correction device 200 corresponding to the second stage can use the same material and thickness. However, different materials or different thicknesses can also be used according to the needs of the correction scheme. For example, when a greater correction force is required to obtain a greater amount of movement, a material with a greater elastic modulus / rigidity or a greater thickness can be used.

[0082] In some embodiments, the first correction device 100 and / or the second correction device 200 can not only be used to solve the problem of deep overbite, but also can be used to design orthodontic alignment of teeth. Specifically, the maxillary shell-shaped body and the mandibular shell-shaped body accommodate all the upper and lower teeth, and the tooth receiving cavity of the maxillary shell-shaped body and the mandibular shell-shaped body has a geometric shape that is misaligned with the current teeth, so that the teeth can move from the current arrangement position to the target position. Orthodontic treatment is carried out simultaneously, which greatly shortens the correction period.

[0083] In some embodiments, reference Figure 4As shown, when worn, the tooth receiving cavity of the first orthodontic device 100 and / or the second orthodontic device 200 is basically in contact with the received teeth, the lowest point of the first adjustment portion 111 in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth 1, and the first distance X1 is the distance between the lowest point of the first adjustment portion 111 and the incisal end of the maxillary anterior teeth 1 in the vertical direction. Similarly, the lowest point of the second adjustment portion 211 in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth 1, and the second distance X2 is the distance between the lowest point of the second adjustment portion 211 and the incisal end of the maxillary anterior teeth 1 in the vertical direction. Specifically, the first distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the corresponding position of the first adjustment portion 111; the second distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the corresponding position of the second adjustment portion 211. This ensures that when the correction steps corresponding to the first and second stages are completed, the vertical occlusal relationship of the upper and lower jaws of the patient after the orthodontic device is removed remains the vertical occlusal relationship when worn. The specific design parameters are that the first distance and the second distance are between 0.5mm and 3mm from the incisal tip of the anterior teeth. Further preferably, the first distance and the second distance are between 1mm and 2mm from the incisal tip of the anterior teeth.

[0084] In some embodiments, reference Figure 5 As shown, when the first and second stages use overcorrection on the patient's dentition, for overcorrection cases, the first adjustment portion 111 and the second adjustment portion 211 are specifically designed so that when worn, the lowest point of the first adjustment portion 111 in the vertical direction is located on the jaw side opposite to the incisor tip of the maxillary anterior teeth, and the lowest point of the second adjustment portion 211 in the vertical direction is located on the jaw side opposite to the incisor tip of the maxillary anterior teeth. The first distance X1 is the distance between the lowest point of the first adjustment portion 111 and the incisor tip of the maxillary anterior teeth in the vertical direction, and the first distance is less than or equal to 0.2 mm. The second distance X2 is the distance between the lowest point of the second adjustment portion 211 and the incisor tip of the maxillary anterior teeth in the vertical direction, and the second distance is also less than or equal to 0.2 mm.

[0085] In some embodiments, the single-step depression amount of the teeth in the mandibular anterior region corresponding to the orthodontic device in each stage of the series of orthodontic devices in the present application is between 0.1mm and 0.2mm. That is, the single-step depression amount of the mandibular shell-shaped body corresponding to each stage on the teeth in the mandibular anterior region is between 0.1mm and 0.2mm. Specifically, in one stage, multiple teeth may be moved by pressure at the same time, or one tooth may be moved alone. Of course, the teeth may also be alternately depressed in different stages.

[0086] In some embodiments, the first mandibular shell-like body 12 or the second mandibular shell-like body 22 has a method for achieving the lowering of the teeth in the anterior teeth area: the tooth receiving cavity of the first mandibular shell-like body 12 or the second mandibular shell-like body 22 used to accommodate at least part of the teeth in the anterior teeth area has a height in the vertical direction that is smaller than the height of the crown of the tooth it accommodates in the vertical direction. That is, the tooth receiving cavity corresponding to the tooth that needs to be lowered in the anterior teeth area has a height in the vertical direction that is smaller than the height of the crown of the tooth to be lowered. Specifically, it can be, refer to Figure 6 As shown, taking the first mandibular shell-like body 12 as an example, the overall height Y1 of the tooth receiving cavity in the vertical direction is less than the height Y2 of the crown of the depressed tooth, and the height difference between the tooth receiving cavity of the first mandibular shell-like body 12 for accommodating at least part of the teeth in the anterior region and the crown of the teeth accommodated therein in the vertical direction is between 0.1mm and 0.2mm. Figure 7 The state of the first mandibular shell-like body 12 before and after being worn is shown. When the first mandibular shell-like body 12 is worn on the patient's mandibular dentition, after the teeth in the posterior area and the tooth receiving cavity in the posterior area of ​​the second shell-like body are in place, the teeth in the posterior area are support teeth, and the height difference between the tooth receiving cavity in the anterior area of ​​the first mandibular shell-like body 12 and the crown height of the corresponding tooth causes the wrapped and depressed tooth receiving cavity to undergo elastic deformation, applying a downward pressing force on the incisal end of the anterior teeth that need to be depressed. Therefore, during the wearing process of the first mandibular shell-like body 12, part of the teeth in the anterior area are always subjected to a downward pressing force.

[0087] In another embodiment, the local height of the tooth receiving cavity corresponding to the tooth to be depressed in the anterior tooth area of ​​the first mandibular shell-shaped body 12 or the second mandibular shell-shaped body 22 in the vertical direction is less than the height of the corresponding part of the crown of the depressed tooth, Figure 8 As shown, continuing to use the first mandibular shell-shaped body 12 as an example, the local height reduction can be formed by the incisal end of the corresponding tooth receiving cavity being partially concave downward (ie, concave toward the gingival side). The range H1 of the local height reduction is between 0.1mm and 0.2mm.

[0088] In other embodiments, the first orthodontic device 100 or the second orthodontic device 200 further comprises a depression attachment 13 provided on the surface of the canine or premolar adjacent to the at least part of the teeth in the anterior region, and when worn, the depression attachment 13 applies a vertical downward force to the first mandibular shell-shaped body 12 or the second mandibular shell-shaped body 22 so that the first mandibular shell-shaped body 12 or the second mandibular shell-shaped body 22 applies a depression force to the at least part of the teeth in the anterior region. Specifically, referring to Fig. 9In the example of the first mandibular shell-like body 12, when the first mandibular shell-like body 12 or the second mandibular shell-like body 22 needs to depress all the front teeth, that is, when the central incisor, lateral incisor and canine need to be depressed, a depressing attachment 13 is bonded to the labial surface of the premolars on both sides of the mandible, and the surface of the depressing attachment 13 adjacent to the gingival end is a concave curved surface 13a formed by being concave toward the opposite jaw. The first mandibular shell-like body 12 or the second mandibular shell-like body 22 has a depressing accommodating cavity 123 consistent with the contour of the depressing attachment 13 at the position corresponding to the depressing attachment 13. When worn, the concave curved surface 13a applies a vertical downward force to the depressing accommodating cavity 123. The first mandibular shell-like body 12 or the second mandibular shell-like body 22 applies a downward force to the central incisor, lateral incisor and canine, thereby achieving the depressing of the central incisor, lateral incisor and canine.

[0089] In other embodiments, similarly, if the teeth in the anterior region that need to be depressed are the central incisors and the lateral incisors, then depression attachments 13 are bonded to the labial surfaces of the canines on both sides. Fig. 9 The same as the example in, the surface of the depression attachment 13 adjacent to the gingival end is a concave curved surface 13a formed by being concave toward the opposite jaw. The first mandibular shell-like body 12 or the second mandibular shell-like body 22 has a depression accommodating cavity consistent with the contour of the depression attachment 13 at the position corresponding to the depression attachment 13. When worn, the concave curved surface applies a vertical downward force to the depression accommodating cavity. The first mandibular shell-like body 12 or the second mandibular shell-like body 22 applies a downward reaction force to the central incisor and the lateral incisor, thereby achieving depression of the central incisor and the lateral incisor.

[0090] In cases of deep overbite, the mandibular dentition of the patient is often accompanied by a deep SPEE curve. Generally speaking, for patients with a deeper SPEE, the anterior teeth area of ​​the mandibular dentition needs to be depressed and the teeth in the posterior area need to be elevated, that is, the mandibular SPEE curve needs to be leveled. Especially for patients with low-angle horizontal growth, the facial shape can be improved by increasing the inter-mandibular height of the posterior area by elongating the posterior teeth. Therefore, in some embodiments, the series of orthodontic appliances are also designed to achieve the elevation and movement of the teeth in the mandibular posterior area in steps.

[0091] In some embodiments, the total movement amount M of the series of corrective appliances to level the mandibular SPEE curve is the sum of the total movement amount of depression of the teeth in the mandibular anterior region and the total movement amount of elevation of the teeth in the mandibular posterior region. Specifically, the series of corrective appliances makes the total movement amount of depression of the teeth in the mandibular anterior region 1 / 3-1 / 2 of the total movement amount M required to level the mandibular SPEE curve. Therefore, the series of corrective appliances makes the total movement amount of elevation of the teeth in the mandibular posterior region 1 / 2-2 / 3 of the total movement amount M required to level the mandibular SPEE curve. Generally, the total amount of posterior teeth extension is designed to be between 1mm-1.5mm, and the single-step elevation amount of the teeth in the mandibular posterior region corresponding to the corrective appliances in each stage of the series of corrective appliances is between 0.1mm-0.2mm.

[0092] In some embodiments of the present application, since the height of the first adjustment portion 111 and the second adjustment portion 211 in the vertical direction has the function of opening the bite, after the first orthodontic device 100 or the second orthodontic device 200 is worn, a certain gap will appear between the upper and lower jaws of the patient's posterior teeth to provide space for the posterior teeth to rise, and the first mandibular shell-shaped body 12 or the second mandibular shell-shaped body 22 can step by step lift and move the mandibular posterior teeth. Specifically, it can be, refer to Fig.10 As shown, taking the first mandibular shell-shaped body 12 as an example, the first mandibular shell-shaped body 12 accommodates the tooth receiving cavity of at least part of the teeth in the posterior tooth area, and a force application point 121 is set near the gingival end on both sides of the buccal and lingual sides. The force application point 121 can be formed by the tooth receiving cavity itself being concave toward the tooth direction, so as to achieve the application of a lifting force to at least part of the teeth in the posterior tooth area. Or, refer to Fig.11 As shown, continuing to use the first mandibular shell-like body 12 as an example, a lifting attachment 14 is provided on the buccal side of the teeth that need to be lifted in the posterior tooth area, and the length of the lifting attachment 14 in the mesiodistal direction is 1 / 2-2 / 3 of the length of the corresponding tooth in the mesiodistal direction. The first mandibular shell-like body 12 has a lifting accommodating cavity 124 that is consistent with the contour of the lifting attachment 14 at the position corresponding to the lifting. When worn, the lifting attachment 14 interacts with the lifting accommodating cavity 124 so that the tooth provided with the lifting attachment 14 is subjected to a lifting force. Generally, when worn, the surface of the lifting attachment 14 adjacent to the gingival end interacts with the surface corresponding to the lifting accommodating cavity 124, and the force generated by the elastic deformation of the lifting accommodating cavity 124 acts on the surface of the lifting attachment 14 adjacent to the gingival end, thereby achieving a lifting force applied to the tooth to which the lifting attachment 14 is attached.

[0093] In a series of correction devices in some other embodiments of the present application, the tooth receiving cavity of the first maxillary shell-shaped body 11 or the second maxillary shell-shaped body 21 that accommodates at least part of the teeth in the posterior tooth area can also be designed to apply a lifting force to at least part of the teeth in the posterior tooth area. When treating deep overbite cases, after the mandibular SPEE curve has been leveled by the mandibular shell-shaped body, the upper and lower jaws in the posterior tooth area still need a certain amount of space in the vertical direction under the action of the adjustment part, so in order to achieve a better bite effect. Reference Fig.12 The first maxillary shell-shaped body 11 of the example, the first maxillary shell-shaped body 11 or the second maxillary shell-shaped body 21 accommodates at least part of the teeth in the posterior teeth area, and the tooth receiving cavity is provided with a force application point 112 near the gingival end on both sides of the buccal and lingual sides. The force application point 112 can be formed by the tooth receiving cavity itself being concave toward the tooth direction, so as to achieve the application of a lifting force to at least part of the teeth in the maxillary posterior teeth area. Or, refer to Fig.13 The first maxillary shell-like body 11 of the example is provided with a lifting attachment 14 on the buccal side of the teeth that need to be lifted in the maxillary posterior teeth area, and the length of the lifting attachment 14 in the mesiodistal direction is 1 / 2-2 / 3 of the length of the corresponding tooth in the mesiodistal direction. The first maxillary shell-like body 11 or the second maxillary shell-like body 21 has a lifting accommodating cavity 114 that is consistent with the contour of the lifting attachment 14 at the position corresponding to the lifting. When worn, the lifting attachment 14 interacts with the lifting accommodating cavity 114 so that the tooth provided with the lifting attachment 14 is subjected to a lifting force. Generally, when worn, the surface of the lifting attachment 14 adjacent to the gingival end interacts with the surface corresponding to the lifting accommodating cavity 114, and the force generated by the elastic deformation of the lifting accommodating cavity 114 acts on the surface of the lifting attachment 14 adjacent to the gingival end, thereby achieving a lifting force on the tooth to which the lifting attachment 14 is attached.

[0094] In some embodiments of the present application, reference Fig.14As shown, the first adjustment portion 111 includes a cavity structure 111a formed by the lingual side surface of the anterior teeth area of ​​the first maxillary shell-like body 11 extending first toward the direction of the opposite jaw and then toward the direction of the posterior teeth. Specifically, the first adjustment portion 111 includes a side wall extending and bending from the lingual side of the anterior teeth area of ​​the first maxillary shell-like body 11 to form a cavity structure 111a, and the cavity structure 111a at least accommodates a part of the incisal edge or adjacent incisal edge of the teeth in the mandibular anterior teeth area; and includes a reinforcement portion 113 that at least partially offsets the deformation of the shell-like body caused by occlusion, and one end of the reinforcement portion 113 is connected to an end of the side wall away from the first shell-like body. More specifically, one end of the lingual side of the anterior teeth region of the first maxillary shell-like body 11 is bent and extended toward the side away from the teeth of the maxillary anterior teeth region, and the side wall of the cavity structure 111a formed by the bent extension can be a smoothly transitioned curved surface or an extended surface surrounded by polygons. That is to say, the side of the cavity structure 111a adjacent to the teeth of the maxillary anterior teeth region is connected to the lingual side of the anterior teeth region of the first maxillary shell-like body 11, and the side of the cavity structure 111a away from the teeth of the maxillary anterior teeth region is connected to the reinforcement part 113. The specific position of the connection between the cavity structure 111a and the lingual side of the anterior teeth area of ​​the first maxillary shell-like body 11 can be the lingual side of the anterior teeth area of ​​the first maxillary shell-like body 11 adjacent to the gingival margin or the lingual fossa of the first maxillary shell-like body 11 adjacent to the teeth in the anterior teeth area. Specifically, the connection can be from the lingual gingival margin of the anterior teeth area of ​​the first maxillary shell-like body as the starting point to 1 / 4-1 / 2 of the length of the crown of the anterior teeth area as the starting point, that is, the connection is not the lingual gingival margin of the anterior teeth area of ​​the shell-like body, but from the lingual side of the anterior teeth area of ​​the first maxillary shell-like body 11 adjacent to the gingival margin or the lingual fossa of the first maxillary shell-like body 11 adjacent to the teeth in the anterior teeth area as the extension starting point, extending away from the side of the teeth in the anterior teeth area of ​​the maxillary shell-like body. The reinforcement part 113 is formed by the lingual end of the cavity structure 111a adjacent to the surface of the opposite jaw extending toward the palate. The reinforcement part 113 can partially or completely fit the upper palate area of ​​the patient and be consistent with the curvature of the upper palate, thereby offsetting the deformation of the adjustment part during wearing. Or, refer to Fig.18 As shown, the reinforcement portion 113 is a convex point structure formed by the surface of the distal end of the cavity structure 111a protruding in a direction away from the maxillary anterior teeth, thereby increasing the deformation resistance of the cavity structure 111a in the vertical direction.

[0095] The cavity structure 111a at least accommodates the incisal edge of the teeth in the anterior region of the mandible or a part of the adjacent incisal edge. More specifically, "overbite" refers to the vertical distance that the maxillary teeth cover the mandibular teeth, which is generally 1-3mm. In the anterior teeth, if the covered portion does not exceed the incisal 1 / 3 of the labial surface of the incisor, it is considered a normal overbite. If it exceeds, it is considered a deep overbite. The degree depends on the position of the incisal edge of the mandibular incisor biting on the lingual surface of the maxillary incisor. If it bites in the incisal 1 / 3, it is a normal overbite; if it bites within the middle 1 / 3, it is called a degree I deep overbite; if it bites within the cervical 1 / 3, it is called a degree II deep overbite; if it bites above the cervical 1 / 3, it is called a degree III deep overbite. The cavity structure 111a accommodates the incisal edge or a part of the adjacent incisal edge of the teeth in the mandibular anterior teeth area, which may include the following situations: 1) the incisal edge is the incisal 1 / 3 of the labial surface of the mandibular anterior teeth; 2) a part of the adjacent incisal edge is the adjacent 1 / 3 of the labial surface of the mandibular anterior teeth, such as between 1 / 4-1 / 3 or between 1 / 3-1 / 2, and the more preferred way is between 1 / 4-1 / 3. At this time, the vertical distance that the maxillary teeth cover the mandibular teeth does not exceed the incisal 1 / 3 of the labial surface of the mandibular incisor.

[0096] In some embodiments, the first adjustment portion 111 includes a cavity structure 111a formed by a lingual side of at least one tooth receiving cavity in the anterior tooth region of the first maxillary shell-like body 11 partially protruding toward the distal direction; the second adjustment portion 211 includes a cavity structure 111a formed by a lingual side of at least one tooth receiving cavity in the anterior tooth region of the second maxillary shell-like body 21 partially protruding toward the distal direction. Fig.15 As shown, taking the first adjustment portion 111 as an example, the first maxillary shell-like body 11 has a plurality of cavity structures 111a extending from the local lingual side of the tooth receiving cavity to the distal direction, and the cavity structure 111a is connected to the tooth receiving cavity. The advantage of such a design is that the first adjustment portion 111 and the first maxillary shell-like body 11 are integrally formed, which is suitable for large-scale production and manufacturing. In addition, the design of the first adjustment portion 111 does not affect the wrapping property of the tooth receiving cavity on the teeth too much.

[0097] In some embodiments, reference Fig.16 In the schematic cross-sectional view of the first maxillary shell-like body 11 along the sagittal plane, the surface of the cavity structure 111a adjacent to the opposing jaw is a plane parallel to the occlusal plane. Specifically, the surface of the cavity structure 111a adjacent to the opposing jaw is a plane as a whole, or there is a bite mark structure 111b on the surface for positioning the mandibular position, and the bite mark structure 111b has the same shape as the teeth in the anterior area of ​​the opposing jaw. The advantage of this design is that the mandibular position can be better positioned through the bite mark structure 111b, and the sagittal upward movement of the mandibular can also be guided to solve some cases of deep overbite or crossbite.

[0098] Alternatively, in other embodiments, reference Fig.17The schematic cross-sectional view of the first maxillary shell-like body 11 along the sagittal plane shows that the surface of the cavity structure 111a adjacent to the opposing jaw is an inclined surface for guiding the mandible to move forward. The inclined surface can drive the mandibular teeth to move forward during the occlusion process, thereby guiding the mandible forward and correcting the deep overbite problem.

[0099] In some embodiments, the mechanical strength of the first adjustment portion 111 is greater than the mechanical strength of the first maxillary shell-shaped body 11 . Specifically, the first adjustment part 111 and the first maxillary shell-like body 11 are made of the same material, such as one of PETG, PC or TPU, and can also be other polymer materials that can be used in the oral cavity and are safe for use as medical devices, so that it is safe to wear and has the effect of correcting teeth; in other embodiments, the first adjustment part 111 and the first maxillary shell-like body 11 are respectively made of different single materials or different multi-layer composite materials. More specifically, when the first adjustment part 111 and the first maxillary shell-like body 11 are made of different single materials, they can be a combination of any two of PETG, PC or TPU; wherein, different materials can be selected for the first adjustment part 111 and the first maxillary shell-like body 11 during design or preparation, such as the material of the first maxillary shell-like body 11 is TPU, and the material of the first adjustment part 111 can be PETG. At this time, the diaphragm prepared by hot pressing molding can be made of different materials in different parts, or it can be prepared by using different materials for local areas during 3D direct printing. When the first adjustment portion 111 is a multilayer composite material different from the first maxillary shell-like body 11, it can be a multilayer composite material composed of any combination of PETG, PC or TPU. The first adjustment portion 111 can be a multilayer composite material, while the first maxillary shell-like body 11 can be a single material; the first adjustment portion 111 can be a single material, while the first maxillary shell-like body 11 can be a multilayer composite material; the first adjustment portion 111 and the first maxillary shell-like body 11 can also be both multilayer composite materials; more specifically, the first adjustment portion 111 is a multilayer composite material different from the first maxillary shell-like body 11, For example, the first maxillary shell-like body 11 is a single-layer structure or a multi-layer composite structure, and the first adjustment part 111 is a multi-layer composite material, wherein one layer of the multi-layer structure of the first adjustment part 111 may be the same as the first maxillary shell-like body 11, or may be different, such as the first adjustment part 111 is composed of a double-layer composite material, specifically PETG and TPU, and the material of the first maxillary shell-like body 11 is PETG; or the first adjustment part 111 is composed of a double-layer composite material, specifically PETG and TPU, and the first maxillary shell-like body 11 is composed of a double-layer composite material, specifically PETG and PC. The above list is only part of the preferred implementation methods, and various material combinations that can achieve the effects of the present invention are within the protection scope of the present invention and will not be repeated here.

[0100] In other embodiments, reference Fig.18 The schematic cross-sectional view of the first maxillary shell-like body 11 along the sagittal plane, the first adjustment part 111 also includes a filling piece 15 located in the cavity structure 111a. The filling piece 15 can be made of a glass resin material that meets the standards of oral medicine. When the dental device in this application is worn in the early stage of correction, the mandibular teeth of the patient will have a large bite force on the first adjustment part 111. The cavity structure 111a of the first adjustment part 111 is likely to collapse and deform during use, resulting in the dental device losing its correction function and being unable to be worn. Therefore, the filling piece 15 in this application can solve the above problem well. The solid filling piece 15 can effectively improve the deformation resistance of the cavity structure 111a, so that the dental device in the early stage of correction can obtain a more reliable and stable correction result.

[0101] Similarly, the arrangement method between the second adjustment portion 211 and the second maxillary shell-like body 21 can be any of the above-mentioned embodiments. The arrangement method between the first maxillary shell-like body 11 and the first adjustment portion 111 in the first stage can be the same as or different from the arrangement method between the second maxillary shell-like body 21 and the second adjustment portion 211 in the second stage. The arrangement method between the second adjustment portion 211 and the second maxillary shell-like body 21 will not be elaborated here.

[0102] In some embodiments, reference Fig.19 As shown, the series of correction devices of the present application also include a third correction device 300 corresponding to the third stage, the third correction device 300 includes a third maxillary shell-shaped body for accommodating maxillary teeth and a third mandibular shell-shaped body for accommodating mandibular teeth, the third maxillary shell-shaped body is provided with a third adjustment part for adjusting the vertical distance between the teeth in the upper and lower jaws in the anterior teeth area on the lingual side of the anterior teeth area, when worn, the third adjustment part has a third distance with the incisal end of the maxillary anterior teeth, the third stage is any stage in the subsequent stages of the second stage, the third distance can be equal to the second distance, in other embodiments, the third stage is the subsequent stage of the second stage, and the third distance is less than the second distance. Especially for overcorrected cases, the first stage and the second stage are both overcorrection stages, in the overcorrection stage, the adjustment part is arranged on the jaw side of the incisal end of the teeth, after the second stage, the vertical occlusal relationship between the upper and lower jaws needs to be gradually adjusted to the correct position, therefore, in the third stage, the third correction device 300 needs to be used to adjust the vertical relative distance between the upper and lower jaws to be less than the vertical relative distance between the upper and lower jaws when the second correction device 200 is worn, that is, the third distance is less than the second distance. In the subsequent stages of the third phase, the corresponding adjustment part is designed to make the vertical occlusal relative distance of the upper and lower jaws closer to the correct overbite relationship than in the third phase, thereby gradually achieving the correct overbite relationship from overcorrection.

[0103] In some embodiments, reference Fig. 20As shown, a series of correction devices of the present application include a fourth correction device 400 corresponding to the fourth stage, the fourth correction device 400 includes a fourth maxillary shell-shaped body for accommodating maxillary teeth and a fourth mandibular shell-shaped body for accommodating mandibular teeth, the fourth stage is the subsequent stage of the second stage, the fourth maxillary shell-shaped body and the fourth mandibular shell-shaped body have a geometric structure that allows the wrapped teeth to move from the dentition arrangement of the previous stage to the target dentition arrangement; wherein, in the target dentition arrangement, the incisal edge of the upper front teeth covers the labial surface of the lower front teeth by no more than 1 / 3. The fourth stage corresponds to solving the problem of aligning the teeth after the depression movement, so as to achieve the correct overbite relationship between the upper and lower jaws in the fourth stage.

[0104] The embodiment of the present application also provides a method for generating a dental system for occlusal adjustment, such as Fig.21 As shown, including:

[0105] Step 101, obtaining the initial SPEE curve depth of the current patient's dentition, and obtaining the target SPEE curve depth at the correction target position and the target opening height of the anterior teeth area according to the correction plan;

[0106] Step 102, determining a series of digital dental models corresponding to corrective appliances; wherein the series of corrective appliances include a first corrective appliance corresponding to the first stage, the first corrective appliance includes a first maxillary shell-shaped body for accommodating maxillary teeth and a first mandibular shell-shaped body for accommodating mandibular teeth, the first maxillary shell-shaped body is provided with a first adjustment portion on the lingual side of the anterior area of ​​the first maxillary shell-shaped body for adjusting the vertical distance between the teeth in the upper and lower anterior areas, the digital model corresponding to the first adjustment portion is set in vertical height according to the target opening height of the anterior area, and the first mandibular shell-shaped body is used to accommodate the partial tooth receiving cavity of the anterior area teeth, which is designed to have a geometric structure that realizes the depression movement amount of the anterior area teeth corresponding to the first stage; the series of corrective appliances include a second corrective appliance corresponding to the second stage, the second corrective appliance The device comprises a second maxillary shell-shaped body for accommodating maxillary teeth and a second mandibular shell-shaped body for accommodating mandibular teeth, a second adjustment part for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior teeth regions is provided on the lingual side of the anterior teeth region of the second maxillary shell-shaped body, the vertical height of the digital model corresponding to the second adjustment part is set according to the target opening height of the anterior teeth region, and the part of the tooth receiving cavity of the second mandibular shell-shaped body for accommodating the teeth in the anterior teeth region is designed to have a geometric structure that realizes the depression movement amount of the teeth in the anterior teeth region corresponding to the second stage; wherein the second stage is any stage in the subsequent stages of the first stage; the depression amount of the teeth in the anterior teeth region in the digital dental jaw model of the shell-shaped body for accommodating the mandibular teeth corresponding to each stage is designed according to the SPEE curve depth and the target SPEE curve depth;

[0107] Step 103, manufacturing a dental system: manufacturing a series of corrective appliances according to the digital dental and jaw models corresponding to the series of corrective appliances.

[0108] In some embodiments, manufacturing a dental system includes: manufacturing a physical model corresponding to a digital dental model corresponding to the series of corrective devices by means of additive manufacturing, and manufacturing the series of corrective devices by means of hot pressing films according to the physical model. Additive manufacturing can also be referred to as 3D printing, which integrates computer-aided design, material processing and molding technology, and is based on digital model files. It uses software and numerical control systems to stack special metal materials, non-metallic materials, and medical biomaterials layer by layer in accordance with extrusion, sintering, melting, light curing, spraying, etc. to manufacture physical objects.

[0109] In other embodiments, the manufacturing dental system includes: generating digital models of the series of corrective appliances based on digital jaw models corresponding to the series of corrective appliances, and manufacturing the series of corrective appliances by additive manufacturing based on the digital models of the series of corrective appliances.

[0110] It is worth mentioning that all modules involved in this embodiment are logic modules. In practical applications, a logic unit can be a physical unit, a part of a physical unit, or a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, this embodiment does not introduce units that are not closely related to solving the technical problem proposed by the present invention, but this does not mean that there are no other units in this embodiment.

[0111] One embodiment of the present invention relates to an electronic device, such as Fig. 22 As shown, it includes at least one processor 401; and

[0112] A memory 402 is communicatively connected to the at least one processor 401; wherein,

[0113] The memory 402 stores instructions that can be executed by the at least one processor 401 . The instructions are executed by the at least one processor 401 so that the at least one processor 401 can perform a method for generating a shell-shaped dental appliance.

[0114] Among them, the memory and the processor are connected in a bus manner, and the bus may include any number of interconnected buses and bridges, and the bus connects various circuits of one or more processors and memories together. The bus can also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and are therefore not further described herein. The bus interface provides an interface between the bus and the transceiver. The transceiver can be one element or multiple elements, such as multiple receivers and transmitters, providing a unit for communicating with various other devices on a transmission medium. The data processed by the processor is transmitted on a wireless medium via an antenna, and further, the antenna also receives data and transmits the data to the processor.

[0115] The processor is responsible for managing the bus and general processing, and can also provide various functions, including timing, peripheral interfaces, voltage regulation, power management, and other control functions. Memory can be used to store data used by the processor when performing operations.

[0116] One embodiment of the present invention relates to a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the above method embodiment is implemented.

[0117] That is, those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including several instructions for making a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0118] It should be noted that the above embodiments can be freely combined as needed to form different new implementation plans without causing any contradiction. The implementation plans formed by such combination are all within the protection scope of the present invention. In order to save the length of the application text, they will not be described in detail here.

[0119] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

[0120] Similarly, the above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A dental system for occlusal adjustment, characterized in that The invention comprises a series of corrective appliances, wherein the series of corrective appliances are designed to realize the depression movement of the teeth in the mandibular anterior teeth area in steps; the series of corrective appliances comprises a first corrective appliance corresponding to the first stage, wherein the first corrective appliance comprises a first maxillary shell-shaped body for accommodating the maxillary teeth and a first mandibular shell-shaped body for accommodating the mandibular teeth, the lingual side of the anterior teeth area of ​​the first maxillary shell-shaped body is provided with a first adjustment portion for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior teeth areas, and when worn, the first adjustment portion has a first distance from the incisal end of the maxillary anterior teeth, and the part of the tooth receiving cavity of the first mandibular shell-shaped body for accommodating the teeth in the anterior teeth area is designed to have a geometric structure that realizes the depression movement amount of the teeth in the anterior teeth area corresponding to the first stage; the series of corrective appliances comprises a first corrective appliance corresponding to the first stage The second orthodontic device of the second stage comprises a second maxillary shell-shaped body for accommodating maxillary teeth and a second mandibular shell-shaped body for accommodating mandibular teeth, the second maxillary shell-shaped body is provided with a second adjustment portion on the lingual side of the anterior area of ​​the second maxillary shell-shaped body for adjusting the vertical distance between the teeth in the upper and lower anterior areas, when worn, the second adjustment portion is at a second distance from the incisal end of the maxillary anterior teeth, the second mandibular shell-shaped body is used to accommodate part of the tooth receiving cavity of the anterior area teeth and is designed to have a geometric structure that realizes the depression movement amount of the teeth in the anterior area corresponding to the second stage; wherein the second stage is any stage subsequent to the first stage, the first distance is equal to the second distance so that the teeth in the upper and lower anterior areas are always kept in the same occlusal position during the correction process.

2. The dental system for occlusal adjustment according to claim 1, characterized in that: When worn, the lowest point of the first adjustment portion in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth, and the lowest point of the second adjustment portion in the vertical direction is located on the gingival side of the incisal end of the maxillary anterior teeth.

3. The dental system for occlusal adjustment according to claim 2, characterized in that: The first distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the position corresponding to the first adjustment portion; the second distance is less than or equal to 1 / 3 of the vertical length of the tooth crown at the position corresponding to the second adjustment portion.

4. The dental system for occlusal adjustment according to claim 1, characterized in that: When worn, the lowest point of the first adjustment portion in the vertical direction is located on the opposite jaw side of the incisal end of the maxillary anterior teeth, and the lowest point of the second adjustment portion in the vertical direction is located on the opposite jaw side of the incisal end of the maxillary anterior teeth.

5. The dental system for occlusal adjustment according to claim 4, characterized in that: The first distance is less than or equal to 0.2 mm and / or the second distance is less than or equal to 0.2 mm.

6. The dental system for occlusal adjustment according to claim 1, characterized in that: The single-step depression amount of the teeth in the mandibular anterior region corresponding to the orthodontic appliance in each stage of the series of orthodontic appliances is between 0.1 mm and 0.2 mm.

7. The dental system for occlusal adjustment according to claim 1, characterized in that: The series of orthodontic appliances are also designed to achieve the lifting movement of the teeth in the posterior region of the mandible in steps.

8. The dental system for occlusal adjustment according to claim 7, characterized in that: The total movement amount M of the series of corrective appliances to level the mandibular SPEE curve is the sum of the total movement amount of the teeth in the mandibular anterior area and the total movement amount of the teeth in the mandibular posterior area.

9. The dental system for occlusal adjustment according to claim 8, characterized in that: The series of correction devices make the total amount of depression and movement of the teeth in the mandibular anterior area equal to 1 / 3-1 / 2 of the total amount of movement M required to level the mandibular SPEE curve.

10. The dental system for occlusal adjustment according to claim 8, characterized in that: The series of correction devices make the total movement of the teeth in the mandibular posterior area rise and move to 1 / 2-2 / 3 of the total movement M required to level the mandibular SPEE curve.

11. The dental system for occlusal adjustment according to claim 10, characterized in that: The single-step elevation of the teeth in the mandibular posterior region corresponding to the orthodontic appliance in each stage of the series of orthodontic appliances is between 0.1 mm and 0.2 mm.

12. The dental system for occlusal adjustment according to claim 1, characterized in that: The vertical height of the tooth receiving cavity of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body for accommodating the teeth in the anterior region is smaller than the vertical height of the crown of the tooth accommodated therein.

13. The dental system for occlusal adjustment according to claim 12, characterized in that: The height difference between the tooth receiving cavity of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body for accommodating the teeth in the anterior region and the crown of the tooth accommodated therein in the vertical direction is between 0.1 mm and 0.2 mm.

14. The dental system for occlusal adjustment according to claim 1 or 12, characterized in that: The series of corrective devices also include a depression attachment provided on the surface of the canines or molars adjacent to the teeth in the anterior teeth area. When worn, the depression attachment applies a vertical downward force to the first mandibular shell-like body and / or the second mandibular shell-like body so that the first mandibular shell-like body and / or the second mandibular shell-like body applies a depression force to the teeth in the anterior teeth area.

15. The dental system for occlusal adjustment according to claim 14, characterized in that: The surface of the depression attachment adjacent to the gingival end is a concave curved surface formed by being concave toward the opposite jaw.

16. The dental system for occlusal adjustment according to claim 15, characterized in that: The first mandibular shell-shaped body and / or the second mandibular shell-shaped body have a depression accommodating cavity consistent with the contour of the depression accessory at a position corresponding to the depression accessory.

17. The dental system for occlusal adjustment according to claim 16, characterized in that: When worn, the concave curved surface applies a vertical downward force to the depressed accommodating cavity.

18. The dental system for occlusal adjustment according to claim 7, characterized in that: The tooth receiving cavity of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body for accommodating the teeth in the posterior region has a geometric structure that applies a lifting force to the teeth in the posterior region.

19. The dental system for occlusal adjustment according to claim 18, characterized in that: The series of correction devices also include a raised attachment provided on the buccal side of the teeth in the posterior region, and the length of the raised attachment in the mesiodistal direction is 1 / 2-2 / 3 of the length of the corresponding tooth in the mesiodistal direction.

20. The dental system for occlusal adjustment according to claim 19, characterized in that: The first mandibular shell-shaped body and / or the second mandibular shell-shaped body have a raised accommodating cavity consistent with the contour of the raised attachment at the position corresponding to the raised position. When worn, the raised attachment interacts with the raised accommodating cavity so that the teeth provided with the raised attachment are subjected to a raised force.

21. The dental system for occlusal adjustment according to claim 18, characterized in that: The tooth receiving cavity of the first mandibular shell-shaped body and / or the second mandibular shell-shaped body corresponding to the raised teeth in the posterior tooth area has a force application point formed inwardly concave toward the tooth near the gingival end.

22. The dental system for occlusal adjustment according to claim 1, characterized in that: The first adjustment portion includes a cavity structure formed by the lingual side surface of the anterior tooth area of ​​the first maxillary shell-like body extending first toward the opposite jaw direction and then toward the teeth of the posterior tooth area; the second adjustment portion includes a cavity structure formed by the lingual side surface of the anterior tooth area of ​​the second maxillary shell-like body extending first toward the opposite jaw direction and then toward the teeth of the posterior tooth area.

23. The dental system for occlusal adjustment according to claim 1, characterized in that: The first adjustment portion includes a cavity structure formed by a lingual side surface of at least one tooth receiving cavity in the anterior tooth area of ​​the first maxillary shell-like body partially protruding toward the distal direction; the second adjustment portion includes a cavity structure formed by a lingual side surface of at least one tooth receiving cavity in the anterior tooth area of ​​the second maxillary shell-like body partially protruding toward the distal direction.

24. The dental system for occlusal adjustment according to claim 22 or 23, characterized in that: The surface of the cavity structure adjacent to the opposing jaw is a plane parallel to the occlusal surface.

25. The dental system for occlusal adjustment according to claim 24, characterized in that: The plane is provided with a bite mark structure for locating the position of the mandible, and the bite mark structure is the same shape as the teeth in the anterior teeth area of ​​the opposing jaw.

26. The dental system for occlusal adjustment according to claim 22 or 23, characterized in that: The surface of the cavity structure adjacent to the opposing jaw is an inclined surface for guiding the mandible to move forward.

27. The dental system for occlusal adjustment according to claim 1, characterized in that: The mechanical strength of the first adjustment portion is greater than the mechanical strength of the first maxillary shell-like body and / or the mechanical strength of the second adjustment portion is greater than the mechanical strength of the second maxillary shell-like body.

28. The dental system for occlusal adjustment according to claim 22 or 23, characterized in that: The first adjustment portion and / or the second adjustment portion further includes a filling piece located in the cavity structure.

29. The dental system for occlusal adjustment according to claim 22, characterized in that: The lingual end of the cavity structure adjacent to the surface of the opposing jaw extends toward the palate to form a reinforcement portion 113 for resisting deformation of the cavity structure caused by occlusion.

30. The dental system for occlusal adjustment according to claim 29, characterized in that: When worn, at least a portion of the reinforcement portion 113 fits against the upper palate and is consistent with the curvature of the upper palate.

31. The dental system for occlusal adjustment according to claim 1 or 4, characterized in that: The series of corrective devices include a third corrective device corresponding to the third stage, the third corrective device includes a third maxillary shell-shaped body for accommodating maxillary teeth and a third mandibular shell-shaped body for accommodating mandibular teeth, the lingual side of the anterior tooth area of ​​the third maxillary shell-shaped body is provided with a third adjustment portion for adjusting the vertical distance between the teeth in the upper and lower anterior tooth areas, when worn, the third adjustment portion has a third distance from the incisal end of the maxillary anterior teeth, the third stage is any stage subsequent to the second stage, and the third distance is smaller than the second distance.

32. The dental system for occlusal adjustment according to claim 1, characterized in that: The series of orthodontic devices include a fourth orthodontic device corresponding to the fourth stage, the fourth orthodontic device includes a fourth maxillary shell-like body for accommodating maxillary teeth and a fourth mandibular shell-like body for accommodating mandibular teeth, the fourth stage is a subsequent stage of the second stage, the fourth maxillary shell-like body and the fourth mandibular shell-like body have a geometric structure that enables the wrapped teeth to move from the dental arrangement of the previous stage to the target dental arrangement; wherein, in the target dental arrangement, the incisal edge of the upper front teeth covers the labial surface of the lower front teeth by no more than 1 / 3.

33. A dental system for occlusal adjustment, characterized in that: It comprises N corrective devices for gradually implementing a treatment plan in steps, each of the N corrective devices comprises a maxillary shell-like body for accommodating the maxillary dentition and a mandibular shell-like body for accommodating the mandibular dentition, the N maxillary shell-like bodies each comprises an adjustment portion for opening the occlusal height of the anterior teeth, the N mandibular shell-like bodies comprise a geometric structure for applying a depression force to the mandibular teeth, wherein the N mandibular shell-like bodies are used for realizing the depression movement of the teeth in the mandibular anterior area in steps in the treatment plan, the N adjustment portions enable the relative positional relationship of the upper and lower mandibular teeth in the anterior area to remain consistent in the vertical direction during the treatment process, and N is a natural number greater than or equal to 2.

34. The dental system for occlusal adjustment according to claim 33, characterized in that: The single-step depression amount of the teeth in the mandibular anterior region corresponding to the orthodontic appliances in each stage of the N orthodontic appliances that gradually implement the orthodontic plan is between 0.1 mm and 0.2 mm.

35. The dental system for occlusal adjustment according to claim 33, characterized in that: The N orthodontic appliances are also designed to achieve the lifting and movement of the teeth in the mandibular posterior area in steps.

36. The dental system for occlusal adjustment according to claim 35, characterized in that The total movement amount M of the N corrective appliances to level the mandibular SPEE curve is the sum of the total movement amount of the teeth in the mandibular anterior area and the total movement amount of the teeth in the mandibular posterior area.

37. The dental system for occlusal adjustment according to claim 36, characterized in that The total amount of intrusion movement of the teeth in the mandibular anterior region caused by the N corrective appliances is 1 / 3-1 / 2 of the total amount of movement M required to level the mandibular SPEE curve.

38. The dental system for occlusal adjustment according to claim 36, characterized in that: The total amount of movement of the teeth in the mandibular posterior region caused by the N corrective appliances is 1 / 2-2 / 3 of the total amount of movement M required to level the mandibular SPEE curve.

39. A method for generating a dental system for occlusal adjustment, characterized in that: include: Obtain the initial SPEE curve depth of the current patient's dentition, and obtain the target SPEE curve depth at the correction target position and the target opening height of the anterior teeth area according to the correction plan; Determine a series of digital dental models corresponding to corrective appliances; wherein, the series of corrective appliances include a first corrective appliance corresponding to the first stage, the first corrective appliance includes a first maxillary shell-like body for accommodating maxillary teeth and a first mandibular shell-like body for accommodating mandibular teeth, the first maxillary shell-like body is provided with a first adjustment portion for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior areas on the lingual side of the anterior area, the digital model corresponding to the first adjustment portion is set in vertical height according to the target opening height of the anterior area, and the first mandibular shell-like body is used to accommodate a part of the tooth receiving cavity of the anterior area teeth, which is designed to have a geometric structure that realizes the amount of depression and movement of the teeth in the anterior area corresponding to the first stage; the series of corrective appliances include a second corrective appliance corresponding to the second stage, and the second corrective appliance includes The invention comprises a second maxillary shell-like body for accommodating maxillary teeth and a second mandibular shell-like body for accommodating mandibular teeth, a second adjustment part for adjusting the vertical distance between the teeth in the upper and lower mandibular anterior teeth regions is provided on the lingual side of the anterior teeth region of the second maxillary shell-like body, the vertical height of the digital model corresponding to the second adjustment part is set according to the target opening height of the anterior teeth region, and the part of the tooth receiving cavity of the second mandibular shell-like body for accommodating the teeth in the anterior teeth region is designed to have a geometric structure for realizing the depression movement amount of the teeth in the anterior teeth region corresponding to the second stage; wherein the second stage is any stage in the subsequent stages of the first stage; the depression amount of the teeth in the anterior teeth region in the digital dental jaw model of the shell-like body for accommodating the mandibular teeth corresponding to each stage is designed according to the SPEE curve depth and the target SPEE curve depth; Manufacturing dental systems: Manufacturing a series of orthodontic appliances based on the digital jaw models corresponding to the series of orthodontic appliances.

40. The method for generating a dental system for occlusal adjustment according to claim 39, characterized in that: The manufacturing of the dental system comprises: using additive manufacturing to manufacture a physical model corresponding to the digital dental and jaw models corresponding to the series of correction instruments, and using hot pressing film to manufacture the series of correction instruments according to the physical model.

41. The method for generating a dental system for occlusal adjustment according to claim 39, characterized in that: The manufacturing dental system comprises: generating digital models of the series of corrective appliances according to digital jaw models corresponding to the series of corrective appliances, and manufacturing the series of corrective appliances by additive manufacturing according to the digital models of the series of corrective appliances.

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