Foundation jaw pads, dental instruments and methods of making the same

Abstract

This invention provides a basic jaw pad, a dental instrument, and a preparation method. The basic jaw pad includes a first support portion and a second support portion connected to each other. After the basic jaw pad is installed in the through hole of an orthodontic appliance, at least a portion of the first support portion is located within the cavity of the orthodontic appliance for accommodating the dentition. The first support portion mates with the occlusal surface of the dentition on which the orthodontic appliance is worn. At least a portion of the second support portion is located outside the orthodontic appliance and protrudes towards the occlusal surface of the opposing dentition. The basic jaw pad has a preset basic shape, and at least the material of the second support portion of the basic jaw pad is a polished material. This invention improves the versatility of the basic jaw pad, enabling mass production. Furthermore, clinicians can make real-time adjustments and optimizations based on the target positions of the upper and lower jaws in the patient's occlusal state, the specific situation during actual wear, and patient feedback, thereby improving the orthodontic effect.

Description

Technical Field

[0001] This invention relates to the field of orthodontic technology, and more particularly to a basic jaw pad, a dental instrument having the basic jaw pad, and a method for preparing the dental instrument. Background Technology

[0002] In recent years, due to their advantages such as aesthetics, convenience, and ease of cleaning, shell-shaped dental appliances based on polymer materials (such as invisible aligners) have become increasingly popular in the field of orthodontics. In invisible orthodontics, jaw alignment is a crucial treatment step because it not only involves the alignment of teeth but is also closely related to occlusal function and facial aesthetics. Many orthodontic cases involve patients with malocclusions such as deep overbite, reverse overbite (underbite), and open bite. Jaw alignment can restore the normal vertical and sagittal relationship between the upper and lower jaws, ensuring proper contact between them, thereby improving chewing efficiency and reducing the risk of temporomandibular joint disorders.

[0003] However, adjusting jaw alignment during invisible orthodontic treatment presents several challenges and difficulties. For instance, currently, a cavitation structure extending towards the opposing jawline is typically formed during the thermoforming of the invisible aligner, serving as the jaw alignment adjustment structure. During occlusion, this cavitation structure bears significant occlusal force, making it prone to deformation or even cracking, thus affecting the orthodontic outcome. While some physical jaw alignment adjustment structures exist, they are often custom-made products. This makes mass production impossible, and their shape and height are often simulated by software. The opening height and angle of the bite during jaw alignment adjustment heavily rely on clinical experience. Poor control can lead to joint problems, requiring clinicians to adjust the aligner based on the patient's specific situation and real-time adjustments based on patient feedback. Custom-made products cannot achieve this level of adjustment and optimization, impacting the orthodontic effect. Summary of the Invention

[0004] The purpose of this invention is to provide a basic jaw pad, a dental instrument having the basic jaw pad, and a method for preparing the dental instrument.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a basic jaw pad, comprising a first support portion and a second support portion connected to each other. After the basic jaw pad is installed in the through hole of an orthodontic appliance, at least a portion of the first support portion is located within the cavity of the orthodontic appliance for accommodating the dentition. The first support portion mates with the occlusal surface of the dentition on which the orthodontic appliance is worn. At least a portion of the second support portion is located outside the orthodontic appliance and protrudes toward the occlusal surface of the opposing dentition. The basic jaw pad has a preset basic shape, and at least the material of the second support portion in the basic jaw pad is a polished material.

[0006] As a further improvement of the present invention, the hardness of the polishing material is 10HV to 1200HV.

[0007] As a further improvement of the present invention, the polishing material is one or more of the following: composite resin, PEE, HDPE, PTFE, TPU, PETG, PPSU, POM, PA, ABS, PVC, PU, ​​PEKK, PSU, PC, PMMA, PEBA, silicone rubber, ceramics, zirconium oxide, etc.

[0008] As a further improvement of the present invention, the first support portion is transparent.

[0009] As a further improvement of the present invention, the first support portion has a concave portion and / or a convex portion on the side away from the second support portion.

[0010] As a further improvement of the present invention, the second support portion protrudes from the first support portion; the side of the first support portion where the second support portion is disposed is a plane.

[0011] As a further improvement of the present invention, the basic jaw pad includes at least two second support portions disposed on the same side of the first support portion and spaced apart.

[0012] As a further improvement of the present invention, the first support portion and / or the second support portion are configured to correspond to at least two teeth on the occlusal surface of the corresponding dental arch portion.

[0013] As a further improvement of the present invention, the second support portion protrudes from the first support portion; the short axis length in the cross-section of the second support portion is not less than 1 mm.

[0014] As a further improvement of the present invention, the second support portion protrudes from the first support portion; the ratio of the minor axis length in the cross-section of the second support portion to the height of the second support portion is 0.5 to 2.

[0015] As a further improvement of the present invention, the second support portion protrudes from the first support portion; the cross-section of the second support portion is square or circular.

[0016] To achieve the above-mentioned objectives, the present invention also provides a dental instrument, the dental instrument comprising:

[0017] An orthodontic appliance having an internal cavity for accommodating teeth, the appliance having a posterior segment, the occlusal surface of the posterior segment having a occlusal pad mounting area, the occlusal pad mounting area having a through hole;

[0018] The aforementioned basic jaw pad.

[0019] As a further improvement of the present invention, the distance between the edge of the through hole and the edge of the jaw pad mounting area is not less than 0.5 mm.

[0020] As a further improvement of the present invention, the jaw pad mounting area has at least two through holes spaced apart along the sagittal direction; the distance between two adjacent through holes is not less than 0.5 mm.

[0021] As a further improvement of the present invention, the side of the jaw pad mounting area facing the inner cavity is a plane.

[0022] As a further improvement of the present invention, the size of the first support portion is larger than the size of the through hole, the size of the second support portion is adapted to the size of the through hole, and the number of the second support portions is not greater than the number of the through holes.

[0023] As a further improved technical solution of the present invention, the occlusal surface of the posterior tooth segment is provided with a occlusal pad mounting part protruding towards the opposing direction, the occlusal pad mounting part has a mounting cavity communicating with the inner cavity, and the side of the occlusal pad mounting part facing the opposing jaw is the occlusal pad mounting area.

[0024] The mounting cavity is used to accommodate the first support portion, and the size of the first support portion is not greater than the size of the mounting cavity.

[0025] As a further improvement of the present invention, the protrusion height of the jaw pad mounting part is 0.5mm to 5mm.

[0026] As a further improvement of the present invention, the sagittal length of the jaw pad mounting portion is greater than the buccal-lingual length.

[0027] To achieve the above-mentioned objectives, the present invention also provides a method for preparing a dental instrument, comprising the following steps:

[0028] A base jaw pad adapted to the jaw pad mounting area in the orthodontic appliance is installed in the through hole in the jaw pad mounting area, such that at least a portion of the first support portion of the base jaw pad is located on the side of the jaw pad mounting area facing the inner cavity of the orthodontic appliance, and at least a portion of the second support portion of the base jaw pad protrudes on the outside of the orthodontic appliance and toward the opposing jaw direction, and the base jaw pad is the base jaw pad described above.

[0029] The second support portion is ground according to the target position of the upper and lower jaws in the patient's occlusal state, and the height of the base occlusal pad is adjusted so that the side of the second support portion facing the opposing jaw matches the occlusal surface morphology of the corresponding opposing dentition portion.

[0030] As a further improvement of the present invention, in at least some adjacent orthodontic steps, the teeth corresponding to the base occlusal pad are not designed to move; in the at least some adjacent orthodontic steps, the second support is continuously polished according to the orthodontic process so that the height of the base occlusal pad adapts to different orthodontic steps.

[0031] As a further improvement of the present invention, after the basic jaw pad is installed in the through hole of the orthodontic appliance, and before the second support portion is polished, the preparation method further includes the following steps:

[0032] The cavity formed between the mounting cavity for accommodating the first support and the first support in the orthodontic appliance is filled with resin.

[0033] The appliance with the base occlusal pad is matched to the patient's dental model or corresponding dentition and the resin is cured.

[0034] As a further improvement of the present invention, before installing the basic chin pad adapted to the chin pad mounting area in the chin pad mounting area into the through hole in the chin pad mounting area, the preparation method further includes the following steps:

[0035] Obtain a digital model of the dentition on one side of the base occlusal pad to be installed, and prepare a molded orthodontic appliance based on the digital model of the dentition;

[0036] A through hole is formed in the jaw pad mounting area of ​​the orthodontic appliance.

[0037] As a further improvement to the present invention, obtaining a digital model of the dentition on one side of the base occlusal pad to be installed, and preparing a molded orthodontic appliance based on the digital model of the dentition specifically includes the following steps:

[0038] Obtain a digital model of the dentition on one side of the base occlusal splint to be installed;

[0039] The digital model of the dentition is processed to obtain an integrated digital model of the occlusal pad mounting part and the digital model of the dentition;

[0040] An orthodontic appliance with a chin pad mounting section is manufactured based on the integrated digital model.

[0041] As a further improvement of the present invention, the specific method of forming a through hole in the jaw pad mounting area of ​​the orthodontic appliance is to open at least two through holes at intervals along the sagittal direction in the jaw pad mounting area.

[0042] Wherein, the distance between the edge of the through hole and the edge of the jaw pad mounting area is not less than 0.5 mm; and / or, the distance between two adjacent through holes is not less than 0.5 mm.

[0043] As a further improvement of the present invention, the protrusion height of the jaw pad mounting portion is 0.5mm to 5mm; and / or, the sagittal length of the jaw pad mounting portion is greater than the buccal-lingual length.

[0044] The beneficial effects of the present invention are as follows: The basic jaw pad in the present invention is designed to have a basic shape and the material of the second support part that matches the opposing jaw is set to a polished material, which improves the versatility of the basic jaw pad and enables mass production. At the same time, clinicians can polish the second support part in real time according to the target position of the upper and lower jaws in the occlusal state, the specific situation when actually wearing it, and the patient's feedback, so as to improve the jaw position correction effect. Attached Figure Description

[0045] Figure 1 This is a schematic diagram of the basic jaw pad structure in this invention;

[0046] Figure 2 This is a schematic diagram of the structure after the basic jaw pad in this invention is fitted with the jaw pad mounting part in the orthodontic appliance;

[0047] Figure 3 yes Figure 2 A schematic diagram of the jaw pad mounting section;

[0048] Figure 4 This is a schematic diagram of the dental instrument after preparation and worn after dental arch in a specific embodiment of the present invention;

[0049] Figures 5(a) to 5(d) This is a step diagram of a method for preparing a dental instrument according to a specific embodiment of the present invention. Detailed Implementation

[0050] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. Please refer to the accompanying drawings for further details. Figure 1 Figure 5 illustrates a preferred embodiment of the present invention. However, it should be noted that these embodiments are not intended to limit the present invention. Any equivalent modifications or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are within the scope of protection of the present invention.

[0051] The terms "first," "second," etc., used in this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Furthermore, it should be noted that, unless otherwise explicitly stated and limited, the terms "connection," "contact," etc., should be interpreted broadly. For example, a connection can be a direct connection or an indirect connection through an intermediate medium; it can be a fixed connection, a movable connection, a detachable connection, or an integral connection; contact can be direct contact or indirect contact through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Please refer to Figures 1-4 As shown, the present invention provides a basic jaw pad 2 and a dental instrument 10 having the basic jaw pad 2. The dental instrument 10 includes an orthodontic appliance 1 having an inner cavity for accommodating teeth and a basic jaw pad 2 for use in conjunction with the orthodontic appliance 1.

[0053] In one specific embodiment, the orthodontic appliance 1 is in the shape of an arch adapted to the corresponding dentition 20, and can be worn on one side of the dentition 20. The orthodontic appliance 1 includes an integrally formed anterior segment and two posterior segments located at both ends of the anterior segment. Of course, this is not a limitation. In other embodiments, the orthodontic appliance 1 may also be configured to have posterior segments, but only cover part of the teeth on one side of the dentition 20.

[0054] Specifically, the orthodontic appliance 1 has a through hole 111, and the base occlusal pad 2 is used to install in the through hole 111. In one specific embodiment, the occlusal surface of the posterior tooth segment has an occlusal pad mounting area 11, and the through hole 111 is located in the occlusal pad mounting area 11, that is, the base occlusal pad 2 is used to install in the posterior tooth segment. Of course, it is understood that the base occlusal pad 2 is not limited to being located in the posterior tooth segment; in specific patient cases, it can also be located in the anterior tooth segment according to specific needs.

[0055] The basic jaw pad 2 includes a first support portion 21 and a second support portion 22 connected to each other. After the basic jaw pad 2 is installed in the through hole 111 of the corresponding orthodontic appliance 1, at least a portion of the first support portion 21 is located in the inner cavity of the orthodontic appliance 1 for accommodating the dentition 20. The first support portion 21 mates with the occlusal surface of the dentition 20 worn by the orthodontic appliance 1. At least a portion of the second support portion 22 is located outside the orthodontic appliance 1 and protrudes toward the occlusal surface of the opposing jaw. After the appliance 1 with the base occlusal pad 2 is worn on the corresponding dentition 20 and engaged, the first support portion 21 abuts against the occlusal surface of the corresponding dentition portion in the dentition 20 on which the appliance 1 is worn, and the second support portion 22 abuts against the occlusal surface of the corresponding dentition portion in the opposing dentition 20. That is, the lower end of the base occlusal pad 2 engages with the occlusal surface of the corresponding dentition portion in the mandibular dentition 20, and the upper end of the base occlusal pad 2 engages with the occlusal surface of the corresponding dentition portion in the maxillary dentition, so as to open the bite of the upper and lower teeth, so that the upper and lower jaws are in an open bite state. At the same time, the bite force between the upper and lower jaws is entirely borne by the base occlusal pad 2 and is not affected by the strength of the appliance 1 itself. This can improve the stability of the support of the base occlusal pad 2 for the upper and lower jaws, so that the upper and lower jaws can be stably maintained in the predetermined open bite state, thereby improving the malocclusion correction effect.

[0056] It should be noted that the contact between the first support 21 and the occlusal surface of the corresponding dentition portion in the dentition 20 worn by the orthodontic appliance 1 can be direct contact or indirect contact through an intermediate medium.

[0057] The second support portion 22 abuts against the occlusal surface of the corresponding dentition portion of the opposing dentition, either directly or indirectly through an intermediate medium. Specifically, the dental instrument 10 may include one or two orthodontic appliances 1. When the dental instrument 10 includes only one orthodontic appliance 1, the orthodontic appliance 1 may be an upper orthodontic appliance worn on the maxillary dentition or a lower orthodontic appliance worn on the mandibular dentition. In this case, after the orthodontic appliance 1 is worn on the corresponding dentition 20, the second support portion 22 abuts directly against the occlusal surface of the corresponding dentition portion of the opposing dentition. When the dental instrument 10 includes two orthodontic appliances, namely a set of maxillary and mandibular appliances, the base jaw pad 2 can be installed on either the maxillary or mandibular appliance. In this case, after both the maxillary and mandibular appliances are worn on their corresponding dentitions and in occlusion, the second support portion 22 abuts against the occlusal surface of the corresponding dentition portion of the opposing appliance. That is, the second support portion 22 indirectly abuts against the occlusal surface of the opposing dentition through the opposing appliance. In this embodiment, the orthodontic appliance 1 worn on the lower dentition 20 with the base jaw pad 2 is used as an example for specific illustration. In practice, the design and selection can be made according to the patient's actual condition or the needs of the orthodontic appliance 1.

[0058] The corresponding dentition portion in this article specifically refers to the portion of the dentition covered by the basic occlusal pad 2 after the orthodontic appliance 1 with the basic occlusal pad 2 is worn on the corresponding dentition 20 and engaged. The dentition portion corresponding to the first support portion 21 refers to the portion of the dentition 20 covered by the first support portion 21 when the orthodontic appliance 1 with the basic occlusal pad 2 is worn, and the dentition portion corresponding to the second support portion 22 refers to the portion of the opposing dentition covered by the second support portion 22. Figure 4 As shown, when the base occlusal pad 2 is placed on the mandibular dentition 20 for orthodontic treatment, the dentition portion corresponding to the first support 21 refers to the portion of the dentition 20 located below the first support 21 and covered by the first support 21, and the dentition portion corresponding to the second support 22 refers to the portion of the dentition located above the second support 22 and covered by the second support 22.

[0059] Combination Figure 1 As shown, the basic jaw pad 2 has a preset basic shape, and at least the second support portion 22 of the basic jaw pad 2 is made of a polished material. That is, the basic jaw pad 2 is a universal jaw pad. Clinicians can polish the second support portion 22 to adjust the height of the basic jaw pad 2 according to the target position of the upper and lower jaws in the patient's occlusal state and the patient's wearing situation, so as to obtain an adjustment jaw pad that is adapted to the orthodontic step. They can also polish the side of the second support portion 22 facing the opposing jaw so that the occlusal surface morphology of the second support portion 22 matches the corresponding opposing dentition, so that the second support portion 22 can form a stable occlusal contact with the opposing dentition, thereby obtaining an ideal and stable jaw position reconstruction result and avoiding the problem of temporomandibular joint disorder induced by unstable occlusion. Improving the universality of the basic jaw pad 2 enables mass production. At the same time, clinicians can make real-time adjustments and optimizations based on the specific situation of the patient's actual wearing and the patient's feedback, such as when the patient feels uncomfortable at the beginning of wearing it or when it is necessary to reduce the height of the adjustment jaw pad as the orthodontic process progresses, thereby improving the jaw position correction effect.

[0060] In one specific embodiment, the first support portion 21 and the second support portion 22 are an integral structure. In this case, both the first support portion 21 and the second support portion 22 are made of polished material, which is beneficial for the mass production of the basic jaw pad 2. Of course, this is not a limitation. The first support portion 21 and the second support portion 22 can also be configured as separate structures. When the first support portion 21 and the second support portion 22 are separate structures, they can be connected by means of adhesive bonding, laser welding, riveting, etc., to form the basic jaw pad 2.

[0061] Specifically, the hardness of the polishing material is 10HV to 1200HV, which facilitates the polishing of the base jaw pad 2 by the dental handpiece.

[0062] Preferably, the hardness of the polishing material is 15HV to 300HV, or the hardness of the polishing material is 60D to 95D.

[0063] Specifically, the polishing material is one or more of the following: composite resin, PEE, HDPE, PTFE, TPU, PETG, PPSU, POM, PA, ABS, PVC, PU, ​​PEKK, PSU, PC, PMMA, PEBA, silicone rubber, ceramics, zirconium oxide, etc.

[0064] Preferably, when the polishing material is a plastic material, PEEK, PPSU, PEKK, PSU, PEBA, PMMA and PC can be selected, which have certain biological safety.

[0065] In one specific implementation method, combined with Figure 1 As shown, the basic shapes of the first support portion 21 and the second support portion 22 in the basic jaw pad 2 are both cuboid. Of course, this is not a limitation; in other embodiments, the basic shapes of the first support portion 21 and / or the second support portion 22 may also be cylinders or other regular or irregular shapes.

[0066] In one specific embodiment, the size of the first support portion 21 is larger than the size of the through hole 111, the size of the second support portion 22 is adapted to the size of the through hole 111, and the number of second support portions 22 is not greater than the number of through holes 111. In this case, the first support portion 21 can be configured as a flat plate, while the second support portion 22 is a column protruding from the first support portion 21, and the cross-sectional dimension of the second support portion 22 is smaller than the size of the plane on the first support portion 21 where the second support portion 22 is located. When installing the basic jaw pad 2, it is inserted outward along the occlusal direction through the inner cavity, so that the second support part 22 passes through the corresponding through hole 111 and protrudes towards the opposing jaw, making installation simple; moreover, the cross-sectional dimension of the first support part 21 is larger than the size of the through hole 111. After the orthodontic appliance 1 with the basic jaw pad 2 is worn on the corresponding dentition 20, one side of the first support part 21 abuts against the corresponding dentition 20, and the other side abuts against the side of the jaw pad installation area 11 facing the inner cavity, which can prevent the basic jaw pad 2 from falling out and improve the stability and safety of the dental instrument 10.

[0067] In some optional embodiments, the cross-section of the second support portion 22 is square or circular, which can increase the contact area between the second support portion 22 and the opposing occlusal surface and improve the support stability of the base jaw pad 2.

[0068] It should be noted that the aforementioned square and circle are not limited to standard squares and circles; that is, the cross-sectional outline of the second support part 22 can be square or circular.

[0069] In one specific embodiment, the short axis length in the cross-section of the second support portion 22 is not less than 1 mm, thereby improving the strength of the second support portion 22 and preventing the second support portion 22 from bending or breaking when subjected to forces such as meshing.

[0070] In one specific embodiment, the ratio of the minor axis length in the cross-section of the second support portion 22 to the height of the second support portion 22 is 0.5 to 2, which improves the strength of the second support portion 22 and prevents the second support portion 22 from bending or breaking when subjected to forces such as meshing.

[0071] Specifically, the minor axis length in the cross-section of the second support portion 22 refers to the shortest length of the line connecting the two opposite endpoints in the cross-section of the second support portion 22.

[0072] In some optional embodiments, the base jaw pad 2 includes at least two second support portions 22 disposed on the same side of the first support portion 21 and spaced apart. Correspondingly, the jaw pad mounting area 11 is provided with at least two through holes 111. Specifically, the at least two through holes 111 are spaced apart along the sagittal direction. Adjacent through holes 111 are not connected, and a blocking portion is formed between adjacent through holes 111 to cooperate with the first support portion 21 located between the two adjacent second support portions 22, so as to prevent the first support portion 21 from dislodging from the mounting cavity along the occlusal direction, which can further improve the connection stability between the base jaw pad 2 and the orthodontic appliance 1.

[0073] In one specific embodiment, the second support portion 22 corresponds one-to-one with the through hole 111. Of course, this is not a limitation.

[0074] Specifically, the distance between two adjacent through holes 111 is not less than 0.5 mm, which increases the strength of the blocking part between two adjacent through holes 111 and can prevent the blocking part from breaking when the base jaw pad 2 is installed or removed.

[0075] In some optional embodiments, the distance between the edge of the through hole 111 and the edge of the jaw pad mounting area 11 is not less than 0.5 mm, which increases the contact surface between the first support 21 and the jaw pad mounting area 11, thereby preventing the first support 21 from coming out of the through hole 111 and improving the connection stability between the basic jaw pad 2 and the orthodontic appliance 1.

[0076] Specifically, the first support portion 21 has a flat side facing the second support portion 22, and correspondingly, the side of the jaw pad mounting area 11 facing the inner cavity is also flat. After the base jaw pad 2 is installed in the orthodontic appliance 1, the first support portion 21 and the jaw pad mounting area 11 have a planar fit, which can improve the stability of the fit between the base jaw pad 2 and the jaw pad mounting area 11.

[0077] In some optional embodiments, the first support portion 21 and / or the second support portion 22 are configured to correspond to at least two teeth on the corresponding occlusal surface. Specifically, the posterior tooth segment includes a plurality of sequentially connected posterior crowns, and the first support portion 21 corresponds to at least two of the posterior crowns. This avoids concentrated force on some teeth, which could cause indentation.

[0078] The first support portion 21 described above is configured to correspond to at least two teeth on the corresponding occlusal surface. This means that when the orthodontic appliance 1 with the basic occlusal pad 2 is worn on the corresponding dentition 20 and is in an occlusal state, the first support portion 21 is in contact with at least two teeth on the dentition 20 wearing the appliance 1. This can mean that the occlusal surfaces of the at least two teeth are completely covered by the first support portion 21, or at least one of the at least two teeth is partially covered by the first support portion 21. Similarly, the second support portion 22 described above is configured to correspond to at least two teeth on the corresponding occlusal surface. This means that when the orthodontic appliance 1 with the basic occlusal pad 2 is worn on the corresponding dentition 20 and is in an occlusal state, the second support portion 22 is in contact with at least two teeth on the opposing dentition. This can mean that the occlusal surfaces of the at least two teeth are completely covered by the second support portion 22, or at least one of the at least two teeth is partially covered by the second support portion 22.

[0079] Specifically, when the base jaw pad 2 includes a plurality of second support portions 22, the aforementioned second support portion 22 corresponding to at least two teeth on the corresponding occlusal surface specifically means that all the second support portions 22 included in one base jaw pad 2 correspond to at least two opposing teeth. For example, when the base jaw pad 2 includes two second support portions 22, the aforementioned second support portion 22 corresponding to at least two teeth on the corresponding occlusal surface specifically means that both second support portions 22 correspond to at least two opposing teeth.

[0080] In some optional embodiments, the occlusal surface of the posterior tooth segment has a protruding occlusal pad mounting portion 12 facing the opposing direction. The occlusal pad mounting portion 12 has a mounting cavity communicating with the inner cavity, and the side of the occlusal pad mounting portion 12 facing the opposing jaw is the occlusal pad mounting area 11. The mounting cavity is used to accommodate the first support portion 21, and the size of the first support portion 21 is not larger than the size of the mounting cavity. The mounting cavity can accommodate the first support portion 21, avoiding the first support portion 21 occupying the space of the inner cavity and avoiding interference between the first support portion 21 and the corresponding dentition 20, thus affecting the wearing stability of the dental instrument 10.

[0081] In one specific embodiment, the size of the first support portion 21 is smaller than the size of the mounting cavity. Specifically, at least the thickness of the first support portion 21 is set to be less than the depth of the mounting cavity, so that after the basic occlusal pad 2 is installed on the orthodontic appliance 1 and the orthodontic appliance 1 is worn on the corresponding dentition 20 or tooth model 30, there is a gap between the first support portion 21 and the occlusal surface of the corresponding dentition portion. At this point, resin 23 can be filled into the cavity formed between the first support 21 (away from the second support 22) and the mounting cavity. Then, the orthodontic appliance 1 with the base jaw pad 2 is matched with the patient's tooth model 30 or the corresponding dentition 20, and the resin 23 is cured. The cured resin 23 is fixedly integrated with the base jaw pad 2, allowing for simultaneous removal or installation. In subsequent orthodontic steps where no movement is designed for the teeth corresponding to the base jaw pad 2, only the second support 22 needs to be ground to adjust the height. Simultaneously, the cured resin 23 matches the occlusal surface morphology of the corresponding dentition 20, thereby enabling the base jaw pad 2 to form a stable occlusal contact with the corresponding dentition portion, achieving ideal and stable jaw reconstruction results and avoiding temporomandibular joint disorders induced by occlusal instability. Of course, this is not a limitation. In other embodiments, the size of the first support 21 can also be set to be consistent with the size of the mounting cavity. In this case, the first support 21 is directly supported on the corresponding dentition.

[0082] In some optional embodiments, the first support portion 21 is transparent so that curing light can penetrate the first support portion 21 to cure the resin 23, which facilitates the curing of the resin 23 and makes the dental instrument 10 more aesthetically pleasing.

[0083] In some optional embodiments, the first support portion 21 has a recess and / or a protrusion on the side away from the second support portion 22.

[0084] In an embodiment where the first support portion 21 and the corresponding occlusal surface of the dental arch are indirectly contacted by a filling resin 23, having a recess and / or a protrusion on the side of the first support portion 21 away from the second support portion 22 can improve the bonding strength between the first support portion 21 and the resin 23. Specifically, the recess and / or the protrusion can be integrally formed as a friction part with a certain roughness, or they can be set independently of each other. The recess can be a perforation or a blind hole.

[0085] In an embodiment where the first support 21 is in direct contact with the occlusal surface of the corresponding dentition portion, the concave portion and / or convex portion may be configured to match the occlusal surface morphology of the corresponding dentition portion in order to stabilize the base occlusal pad 2 on the corresponding dentition.

[0086] Specifically, the concave and / or convex structures on the side of the first support 21 away from the second support 22 can be formed by subsequent grinding or other processes after the basic jaw pad is formed, or the concave and / or convex structures can be formed simultaneously when the basic jaw pad 2 is formed.

[0087] In some optional embodiments, the protrusion height of the occlusal pad mounting portion 12 is 0.5mm to 5mm, so that the first support portion 21 can be received in the mounting cavity, and there is a filling space of filling resin 23 between the first support portion 21 and the corresponding dentition portion.

[0088] In one specific embodiment, the protrusion height of the jaw pad mounting part 12 is 1mm to 3mm, but it is not limited to this.

[0089] In some optional embodiments, the sagittal length of the jaw pad mounting portion 12 is greater than the buccal-lingual length, so the sagittal length of the first support portion 21 in the corresponding base jaw pad 2 can be set to be greater than the buccal-lingual length, thereby increasing the effective area of ​​the base jaw pad 2 and avoiding concentrated force on some teeth causing indentation.

[0090] In some optional embodiments, the dental instrument 10 further includes a retention attachment 3 for attaching to the buccal and / or lingual side of the dentition 20. The orthodontic appliance 1, which mates with the dentition 20, has a retention cavity for accommodating the retention attachment 3, and the retention cavity communicates with the inner cavity. After the orthodontic appliance 1 is worn on the corresponding dentition 20, the retention attachment 3 is positioned within the retention cavity, preventing the orthodontic appliance 1 from detaching from the dentition 20 and improving the stability of the orthodontic appliance 1.

[0091] Combination Figures 5(a) to 5(d) As shown, the present invention also provides a method for preparing a dental instrument 10, comprising the following steps:

[0092] A base jaw pad 2 adapted to the jaw pad mounting area 11 in the orthodontic appliance 1 is installed in the through hole 111 in the jaw pad mounting area 11, such that at least a portion of the first support portion 21 in the base jaw pad 2 is located on the side of the jaw pad mounting area 11 facing the inner cavity of the orthodontic appliance 1, and at least a portion of the second support portion 22 in the base jaw pad 2 protrudes outward from the outside of the orthodontic appliance 1 toward the opposing jaw direction.

[0093] The second support portion 22 is ground according to the target position of the upper and lower jaws in the patient's occlusal state, and the height of the base occlusal pad 2 is adjusted so that the side of the second support portion 22 facing the opposite jaw matches the occlusal surface morphology of the corresponding opposing dentition portion.

[0094] Specifically, the basic jaw pad 2 is the basic jaw pad 2 mentioned above, and the orthodontic appliance 1 is the orthodontic appliance 1 mentioned above, which will not be described again here.

[0095] Specifically, in the embodiment where the size of the first support portion 21 is larger than the size of the through hole 111, and the size of the second support portion 22 is adapted to the size of the through hole 111, the basic jaw pad 2 adapted to the jaw pad mounting area 11 in the orthodontic appliance 1 includes, but is not limited to: the number of second support portions 22 in the basic jaw pad 2 is not greater than the number of through holes 111 in the jaw pad mounting area 11, and the size of the first support portion 21 in the basic jaw pad 2 is not greater than the size of the jaw pad mounting area 11.

[0096] In the embodiment where the size of the first support 21 is larger than the size of the through hole 111, and the size of the second support 22 is adapted to the size of the through hole 111, the above-described installation of the basic jaw pad 2 adapted to the jaw pad mounting area 11 in the jaw pad mounting area 11 into the through hole 111 in the jaw pad mounting area 11 specifically involves: inserting the basic jaw pad 2 outward along the occlusal direction through the inner cavity of the orthodontic appliance 1, so that the second support 22 protrudes out from the corresponding through hole 111 and extends towards the occlusal side. The first support 21 is located on the side of the jaw pad mounting area 11 facing the inner cavity, which is easy to install. At the same time, it can prevent the basic jaw pad 2 from falling out of the orthodontic appliance 1 and improve the stability of the dental instrument 10.

[0097] Specifically, the target positions of the upper and lower jaws in the occlusal state include, but are not limited to, the distance and angle between the upper and lower jaws in the occlusal state.

[0098] Furthermore, before installing the base jaw pad 2, which is adapted to the jaw pad mounting area 11 in the orthodontic appliance 1, into the through hole 111 in the jaw pad mounting area 11, the preparation method further includes the following steps:

[0099] Obtain a digital model of the dentition on one side of the base jaw pad 2 to be installed, and prepare the molded orthodontic appliance 1 based on the digital model of the dentition;

[0100] A through hole 111 is formed in the jaw pad mounting area 11 of the orthodontic appliance 1.

[0101] It is understood that the basic jaw pad 2 in this invention has a basic shape, and the corresponding second support part 22 and first support part 21 also have corresponding basic shapes. The dimensions of the first support part 21 and the second support part 22, such as height, cross-sectional dimensions, and distance between two adjacent second support parts 22, are all general dimensions. Therefore, when opening a hole in the jaw pad installation area 11 in the orthodontic appliance 1, the dimensions of the through hole 111 and the distance between adjacent through holes 111 can be directly set according to the general dimensions. At the same time, the number of through holes 111 formed by opening the hole can be selected according to the patient's condition. Of course, more through holes 111 can also be opened, as long as the number of second support parts 22 in the basic jaw pad 2 is not greater than the number of through holes 111.

[0102] In one specific embodiment, the distance between the edge of the through hole 111 and the edge of the jaw pad mounting area 11 is not less than 0.5 mm. Increasing the contact surface between the first support 21 and the jaw pad mounting area 11 can prevent the first support 21 from dislodging from the through hole 111 and improve the connection stability between the base jaw pad 2 and the orthodontic appliance 1.

[0103] In some optional embodiments, forming through holes 111 in the jaw pad mounting area 11 of the orthodontic appliance 1 specifically involves creating at least two through holes 111 spaced apart along the sagittal direction in the jaw pad mounting area 11. Adjacent through holes 111 are not connected, and a blocking portion is formed between adjacent through holes 111 to cooperate with a first support portion 21 located between two adjacent second support portions 22, thereby preventing the first support portion 21 from dislodging from the mounting cavity along the occlusal direction. This further improves the connection stability between the basic jaw pad 2 and the orthodontic appliance 1.

[0104] Specifically, the distance between two adjacent through holes 111 is not less than 0.5 mm, which increases the strength of the blocking part between two adjacent through holes 111 and can prevent the blocking part from breaking when the base jaw pad 2 is installed or removed.

[0105] In some optional embodiments, obtaining a digital model of the dentition on one side of the base occlusal pad 2 to be installed, and fabricating the molded orthodontic appliance 1 based on the digital model of the dentition specifically includes the following steps:

[0106] Obtain a digital model of the dentition on one side of the base jaw pad 2 to be installed;

[0107] The dental arch digital model is processed to obtain an integrated digital model of the occlusal pad mounting part 12 and the dental arch digital model;

[0108] An orthodontic appliance 1 with a jaw pad mounting part 12 is prepared according to the integrated digital model.

[0109] The prepared orthodontic appliance 1 has a chin pad mounting portion 12, which has a mounting cavity communicating with the inner cavity. The side of the chin pad mounting portion 12 facing the opposing dentition is the chin pad mounting area 11. The mounting cavity is used to accommodate the first support portion 21, the size of which is no larger than the size of the mounting cavity. The mounting cavity can accommodate the first support portion 21, preventing the first support portion 21 from occupying space in the inner cavity and avoiding interference between the first support portion 21 and the corresponding dentition 20, thus affecting the wearing stability of the dental instrument 10.

[0110] It is known that the basic jaw pad 2 has a basic shape, and the corresponding first support part 21 has a general shape and size. The digital model of the jaw pad installation part is set according to the general shape and size. The digital model of the jaw pad installation part is integrated with the digital model of the dentition to form the integrated digital model.

[0111] Specifically, the protrusion height of the jaw pad mounting portion 12 is 0.5mm to 5mm; and / or, the sagittal length of the jaw pad mounting portion 12 is greater than the buccal-lingual length.

[0112] In one specific embodiment, the size of the first support portion 21 is smaller than the size of the mounting cavity. Specifically, at least the thickness of the first support portion 21 is set to be less than the depth of the mounting cavity, so that after the basic occlusal pad 2 is installed onto the orthodontic appliance 1 and the orthodontic appliance 1 is worn on the corresponding dentition 20, there is a gap between the first support portion 21 and the occlusal surface of the corresponding dentition portion. At this time, after the basic occlusal pad 2 is installed in the through hole 111 of the orthodontic appliance 1, and before polishing the second support portion 22, the preparation method further includes the following steps:

[0113] The cavity formed between the mounting cavity for accommodating the first support 21 and the first support 21 in the orthodontic appliance 1 is filled with resin 23.

[0114] The appliance 1 with the base occlusal pad 2 is matched with the patient's dental model 30 or the corresponding dentition 20 and the resin 23 is cured.

[0115] The cured resin 23 is fixedly bonded to the base jaw pad 2, allowing for simultaneous removal or installation. Furthermore, the cured resin 23 matches the occlusal surface morphology of the corresponding dentition, thus enabling the base jaw pad 2 to form a stable occlusal contact with the corresponding dentition, achieving ideal and stable jaw reconstruction results and avoiding temporomandibular joint disorders induced by occlusal instability.

[0116] In the orthodontic process, in orthodontic steps where adjacent teeth corresponding to the base jaw pad 2 are not designed to move, a single base jaw pad 2 can be shared. The height of the base jaw pad 2 can be adjusted by continuously grinding the second support portion 22, thus improving its versatility. That is, in at least some adjacent orthodontic steps where teeth corresponding to the base jaw pad 2 are not designed to move, the second support portion 22 is continuously ground according to the orthodontic progress to adapt the height of the base jaw pad 2 to different orthodontic steps. Generally, as the orthodontic process progresses, the height of the base jaw pad 2 continuously decreases.

[0117] Combination Figures 5(a) to 5(b) The image shows a method for preparing a dental instrument 10 according to a specific embodiment of the present invention, comprising the following steps:

[0118] As shown in Figure 5(a), a digital model of the dentition on one side of the base occlusal pad 2 to be installed is obtained. The dentition digital model is processed to obtain an integrated digital model of the occlusal pad mounting part 12 and the dentition digital model. An orthodontic appliance 1 with the occlusal pad mounting part 12 is prepared according to the integrated digital model. A through hole is formed in the occlusal pad mounting area 11 in the orthodontic appliance 1. The base occlusal pad 2 is inserted outward along the occlusal direction through the inner cavity of the orthodontic appliance 1, so that the second support part 22 passes out from the corresponding through hole and protrudes towards the occlusal side. The first support part 21 is located on the side of the occlusal pad mounting area 11 facing the inner cavity.

[0119] As shown in Figure 5(b), the orthodontic appliance 1 with the basic jaw pad 2 is worn on the corresponding dental model 30 of the patient;

[0120] As shown in Figure 5(c), when the orthodontic appliance 1 with the base occlusal pad 2 is worn on the corresponding dental model 30 of the patient and there is a gap between the first support 21 and the occlusal surface of the corresponding dentition portion, resin 23 is filled into the cavity formed between the side of the first support 21 facing the inner cavity and the mounting cavity. Then, the orthodontic appliance 1 with the base occlusal pad 2 is matched with the dental model 30 of the patient and the resin 23 is cured.

[0121] As shown in Figure 5(d), the second support part 22 is ground according to the target position of the upper and lower jaws in the patient's occlusal state, the height of the basic jaw pad 2 is adjusted and the second support part 22 is made to match the occlusal surface morphology of the corresponding opposing tooth row 20 part on the side facing the opposing jaw to obtain the dental instrument 10 in this orthodontic step.

[0122] In subsequent orthodontic steps where no movement is designed for adjacent teeth corresponding to the basic occlusal pad 2, the basic occlusal pad 2 is directly removed and installed in the appliance 1 of the next orthodontic step. Then, the height of the basic occlusal pad 2 is reduced by grinding the second support 22.

[0123] Compared with the prior art, the basic jaw pad 2 in this invention is designed to have a basic shape and the material of the second support part 22 that matches the opposing jaw is a polished material, which improves the versatility of the basic jaw pad 2 and enables mass production. At the same time, clinicians can make real-time adjustments and optimizations based on the target position of the upper and lower jaws in the occlusal state, the specific situation when actually wearing it, and the patient's feedback, thereby improving the jaw position correction effect.

[0124] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0125] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A basic jaw pad; characterized in that: The basic occlusal pad includes a first support portion and a second support portion connected to each other. After the basic occlusal pad is installed in the through hole of the orthodontic appliance, at least a portion of the first support portion is located in the inner cavity of the orthodontic appliance for accommodating the dentition. The first support portion mates with the occlusal surface of the dentition on which the orthodontic appliance is worn. At least a portion of the second support portion is located outside the orthodontic appliance and protrudes toward the occlusal surface of the opposing occlusion. The basic occlusal pad has a preset basic shape, and at least the material of the second support portion of the basic occlusal pad is a polished material.

2. The basic jaw pad as described in claim 1, characterized in that: The hardness of the polishing material is between 10HV and 1200HV.

3. The basic jaw pad as described in claim 1, characterized in that: The polishing material is one or more of the following: composite resin, PEK, HDPE, PTFE, TPU, PETG, PPSU, POM, PA, ABS, PVC, PU, ​​PEKK, PSU, PC, PMMA, PEBA, silicone rubber, ceramics, zirconium oxide, etc.

4. The basic jaw pad as described in claim 1, characterized in that: The first support portion is transparent.

5. The basic jaw pad as described in claim 1, characterized in that: The first support portion has a recess and / or a protrusion on the side away from the second support portion.

6. The basic jaw pad as described in claim 1, characterized in that: The second support portion protrudes from the first support portion; the side of the first support portion where the second support portion is located is a plane.

7. The basic jaw pad as described in claim 1, characterized in that: The basic jaw pad includes at least two second support portions located on the same side of the first support portion and spaced apart.

8. The basic jaw pad as described in claim 1, characterized in that: The first support portion and / or the second support portion are configured to correspond to at least two teeth on the occlusal surface of the corresponding dentition portion.

9. The basic jaw pad as described in claim 1, characterized in that: The second support portion protrudes from the first support portion; the minor axis length in the cross-section of the second support portion is not less than 1 mm.

10. The basic jaw pad as described in claim 1, characterized in that: The second support portion protrudes from the first support portion; the ratio of the minor axis length in the cross-section of the second support portion to the height of the second support portion is 0.5 to 2.

11. The basic jaw pad as described in claim 1, characterized in that: The second support portion protrudes from the first support portion; the cross-section of the second support portion is square or circular.

12. A dental instrument, characterized in that: The dental instruments include: An orthodontic appliance having an internal cavity for accommodating teeth, the appliance having a posterior segment, the occlusal surface of the posterior segment having a occlusal pad mounting area, the occlusal pad mounting area having a through hole; The basic jaw pad as described in any one of claims 1 to 11.

13. The dental instrument as claimed in claim 12, characterized in that: The distance between the edge of the through hole and the edge of the jaw pad mounting area is not less than 0.5 mm.

14. The dental instrument as claimed in claim 12, characterized in that: The jaw pad mounting area has at least two through holes spaced apart along the sagittal direction; the distance between two adjacent through holes is not less than 0.5 mm.

15. The dental instrument as claimed in claim 12, characterized in that: The side of the jaw pad mounting area facing the inner cavity is a plane.

16. The dental instrument as claimed in claim 12, characterized in that: The size of the first support portion is larger than the size of the through hole, the size of the second support portion is adapted to the size of the through hole, and the number of the second support portions is not greater than the number of through holes.

17. The dental instrument as claimed in claim 16, characterized in that: The occlusal surface of the posterior tooth segment is provided with a occlusal pad mounting part protruding towards the opposing jaw. The occlusal pad mounting part has a mounting cavity communicating with the inner cavity. The side of the occlusal pad mounting part facing the opposing jaw is the occlusal pad mounting area. The mounting cavity is used to accommodate the first support portion, and the size of the first support portion is not greater than the size of the mounting cavity.

18. The dental instrument as claimed in claim 17, characterized in that: The protrusion height of the jaw pad mounting part is 0.5mm to 5mm.

19. The dental instrument as claimed in claim 17, characterized in that: The sagittal length of the jaw pad mounting portion is greater than the buccal-lingual length.

20. A method for preparing a dental instrument, characterized in that: Includes the following steps: A base jaw pad adapted to the jaw pad mounting area in the orthodontic appliance is installed in the through hole in the jaw pad mounting area, such that at least a portion of the first support portion of the base jaw pad is located on the side of the jaw pad mounting area facing the inner cavity of the orthodontic appliance, and at least a portion of the second support portion of the base jaw pad protrudes on the outside of the orthodontic appliance and toward the opposing jaw direction, wherein the base jaw pad is the base jaw pad described in any one of claims 1 to 11. The second support portion is ground according to the target position of the upper and lower jaws in the patient's occlusal state, and the height of the base occlusal pad is adjusted so that the side of the second support portion facing the opposing jaw matches the occlusal surface morphology of the corresponding opposing dentition portion.

21. The method for preparing a dental instrument as described in claim 20, characterized in that: In at least some of the adjacent orthodontic steps, no movement is designed for the teeth corresponding to the base occlusal pad; in the at least some of the adjacent orthodontic steps, the second support is continuously polished according to the orthodontic progress so that the height of the base occlusal pad adapts to different orthodontic steps.

22. The method for preparing a dental instrument as described in claim 20, characterized in that: After the basic jaw pad is installed into the through hole of the orthodontic appliance, and before the second support portion is polished, the preparation method further includes the following steps: The cavity formed between the mounting cavity for accommodating the first support and the first support in the orthodontic appliance is filled with resin. The appliance with the base occlusal pad is matched to the patient's dental model or corresponding dentition and the resin is cured.

23. The method for preparing a dental instrument as described in claim 20, characterized in that: Before installing the base chin pad, which is adapted to the chin pad mounting area in the orthodontic appliance, into the through hole in the chin pad mounting area, the preparation method further includes the following steps: Obtain a digital model of the dentition on one side of the base occlusal pad to be installed, and prepare a molded orthodontic appliance based on the digital model of the dentition; A through hole is formed in the jaw pad mounting area of ​​the orthodontic appliance.

24. The method for preparing a dental instrument as described in claim 23, characterized in that: Obtaining a digital model of the dentition on one side of the base occlusal splint to be installed, and fabricating the molded orthodontic appliance based on the digital model of the dentition, specifically includes the following steps: Obtain a digital model of the dentition on one side of the base occlusal splint to be installed; The digital model of the dentition is processed to obtain an integrated digital model of the occlusal pad mounting part and the digital model of the dentition; An orthodontic appliance with a chin pad mounting section is manufactured based on the integrated digital model.

25. The method for preparing a dental instrument as described in claim 23, characterized in that: Specifically, the through-hole is formed by opening a hole in the jaw pad mounting area of ​​the orthodontic appliance by: opening at least two through-holes at intervals along the sagittal direction in the jaw pad mounting area; Wherein, the distance between the edge of the through hole and the edge of the jaw pad mounting area is not less than 0.5 mm; and / or, the distance between two adjacent through holes is not less than 0.5 mm.

26. The method for preparing a dental instrument as described in claim 24, characterized in that: The protrusion height of the jaw pad mounting portion is 0.5mm to 5mm; and / or, the sagittal length of the jaw pad mounting portion is greater than the buccal-lingual length.

Images