CN219461460U - Jaw relation adjusting appliance - Google Patents
Jaw relation adjusting appliance Download PDFInfo
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- CN219461460U CN219461460U CN202320348509.XU CN202320348509U CN219461460U CN 219461460 U CN219461460 U CN 219461460U CN 202320348509 U CN202320348509 U CN 202320348509U CN 219461460 U CN219461460 U CN 219461460U
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Abstract
Embodiments of the present application provide an interproximal relationship adjustment appliance comprising a carrier in contact with at least a portion of teeth, the lingual edge of the carrier extending toward the gum to form an inner sidewall on the lingual side of the dental arch, the labial side of the carrier extending toward the gum to form an outer sidewall in contact with the labial cheek muscles; the outer side wall, the bearing portion and the inner side wall enclose an upper groove defining an upper dental arch and a lower groove defining a lower dental arch; the relative position relationship between the upper groove and the lower groove is the upper jaw and lower jaw relationship for correcting the final target, the labial surface of the outer side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating labially by using the labial muscle force, or the lingual surface of the inner side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating lingually by using the lingual muscle force.
Description
Technical Field
The embodiment of the application relates to the technical field of orthodontics, in particular to an orthodontics relation adjustment appliance.
Background
For early malocclusion at the growth and development stage of children, research shows that muscles have a critical influence on stability after orthodontic treatment at the development stage, and in some cases, the muscle problem is the cause of oral problems, and ignoring the muscle problem can cause correction to be difficult to take effect or relapse after treatment.
Orofacial muscle function therapy (OMT for short) is a multidisciplinary comprehensive therapy method for evaluating, diagnosing, preventing and treating patients with abnormal orofacial muscles and their functions in the growth and development stage. The mechanism is to promote the normal development of craniofacial structures and the coordination and stabilization of the functions of the oromandibular system through re-education of the nerve-muscle of the oromaxillofacial region, and is a treatment method focusing on the etiology.
In the prior art, a silica gel appliance made of medical silica gel materials is mainly used for treating early-stage malocclusion, and the appliance is an early appliance for correcting malocclusion by using growth and development, has the characteristics of attractive appearance and comfortable wearing, and avoids the problems that children refuse to wear due to the pain of wearing the appliance, poor physical and psychological development and the like, so that more and more people use the silica gel appliance as an early-stage malocclusion appliance.
In existing children's oral treatment, a doctor will match a silicone appliance to treat based on the patient's current arch size. In the prior art, the size of the silica gel appliance is relatively fixed, so that accurate personalized customization can not be realized according to the oral cavity and dentition conditions of a patient, that is, only one model of appliance used by the patient usually provides a target position, and in this way, the force of the appliance can not be accurately controlled, so that the teeth in the front dental region are subjected to excessive force at the initial stage of the appliance, and unexpected lateral inclination of the lips and the tongue can occur.
Accordingly, there is a need for a treatment device that more precisely controls tooth movement.
Disclosure of Invention
An object of embodiments of the present application is to provide an appliance for precisely adjusting the relationship between jaws by effectively controlling tooth movement.
To achieve the above object, embodiments of the present application provide an interproximal relationship adjustment appliance comprising a bearing portion in contact with at least a portion of teeth, a lingual edge of the bearing portion extending toward a gingival direction to form an inner sidewall on a lingual side of a dental arch, a labial side edge of the bearing portion extending toward a gingival direction to form an outer sidewall, the outer sidewall in contact with a labial cheek muscle; the outer side wall, the bearing portion and the inner side wall enclose an upper groove defining an upper dental arch and a lower groove defining a lower dental arch; the relative position relationship between the upper groove and the lower groove is the upper jaw and lower jaw relationship for correcting the final target, the labial surface of the outer side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating labially by using the labial muscle force, or the lingual surface of the inner side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating lingually by using the lingual muscle force.
Preferably, the ridge structure covers 2-6 teeth of the anterior tooth zone along the length in the dental arch line direction.
Preferably, the distance between the anterior tooth areas of the upper and lower grooves in the sagittal direction is between 1mm and 3mm.
Preferably, when the ridge structure is located on the labial side of the outer side wall, the height of the protrusion of the ridge structure to the labial side is between 3mm and 10 mm.
Preferably, when the ridge structure is located on the lingual side of the medial side wall, the height of the protrusion of the ridge structure to the lingual side is between 3mm and 6 mm.
Preferably, the ridge structure is located in the maxillary region of the lateral wall when the anterior maxillary dental region portion of the teeth is subjected to labial orthodontic forces.
Preferably, the teeth of the anterior mandibular region are subjected to labial orthodontic forces, and the ridge structure is located in the mandibular region of the lateral wall.
Preferably, the ridge structure is located in the maxillary region of the inner side wall when the teeth of the maxillary anterior dental region portion are subjected to lingual orthodontic forces.
Preferably, the teeth of the anterior mandibular region are subjected to lingual orthodontic forces, and the ridge structure is located in the mandibular region of the medial side wall.
Preferably, the ridge structure is disposed adjacent to the cut end of the corresponding tooth.
Preferably, the ridge structure is spaced from the gum line of the corresponding tooth by a distance of 1mm to 3mm.
Preferably, the ridge structure is integrally arranged or arranged at intervals.
Preferably, the ridge structure is formed by the appliance surface protruding in the distal direction.
Preferably, the ridge structure is detachably connected with the appliance in a split manner.
Preferably, the ridge structure is adhesively secured to the appliance surface.
Preferably, the mechanical strength of the ridge structure is greater than the mechanical strength of the appliance.
Compared with the prior art, the jaw relation adjusting appliance provided by the utility model has at least the following beneficial effects:
according to the jaw relation adjustment appliance, the lip muscle or lingual muscle force can be utilized to prevent the lips and the tongues of the front teeth from inclining to the convex ridge structure on the surface of the appliance, so that the oral muscle force is fully mobilized and utilized, and when the upper and lower jaw relation is corrected in the sagittal direction, the tooth movement is precisely controlled by utilizing the muscle force, and the tooth movement to an unexpected direction is avoided. And the convex ridge structure can eliminate abnormal muscle function activities, so that establishment and stabilization of neuromuscular balance can be simultaneously promoted in the correction process of misjaw deformity, neuromuscular is activated, joint discomfort is avoided, and a better correction effect is achieved.
Drawings
One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.
FIG. 1 is a schematic illustration of the construction of an appliance in some embodiments of the present application;
FIG. 2 is a schematic illustration of an appliance in accordance with further embodiments of the present application;
FIG. 3 is a front view of FIG. 2;
FIG. 4 is a schematic cross-sectional view of FIG. 3 taken along the B-B direction;
FIG. 5 is a schematic view of an appliance according to further embodiments of the present application;
FIG. 6 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 7 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 8 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 9 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 10 is a schematic view of an appliance according to further embodiments of the present application;
FIG. 11 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 12 is a schematic cross-sectional view of an appliance in further embodiments of the present application;
FIG. 13 is a schematic diagram of a jaw relationship adjustment appliance system of the present application.
Detailed Description
For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments may be mutually combined and referred to without contradiction.
The "posterior tooth zone" referred to in the various examples in this application is defined according to the classification of teeth including premolars and molars, shown as 4-8 teeth in FDI notation, and anterior tooth zone FDI notation as 1-3 teeth in pages 36-38 of the oral medicine guide, 2 nd edition published by the university of Beijing medical Press. The teeth of the anterior teeth area include central incisors, lateral incisors, and cuspids. In addition, referring to teeth in the deciduous stage, the "posterior tooth area" is defined according to the classification of deciduous teeth including deciduous incisors, deciduous cuspids and deciduous molars, wherein deciduous incisors include deciduous intermediate teeth and deciduous side incisors, and deciduous molars include first deciduous molars and second deciduous molars, published by the university of Beijing medical press, 2 nd edition, pages 40-41.
The inter-jaw relation adjustment appliance prevents and corrects the undesirable labial lingual lateral inclination of the anterior teeth in the appliance; the interjaw relation adjustment correction system in the application can better match the teeth, dental arch and intraoral conditions of a patient, and provides different correction effects for growth and development according to the age stage of the patient, so that more accurate correction effects and better wearing comfort are achieved, and therefore, in order to solve the problems that in the prior art, when a silica gel correction device is used for treating early-stage misjaw deformity cases, excessive correction force is applied to the teeth by the silica gel correction device, so that unexpected problems occur to the teeth in the front tooth area.
The present application describes an orthodontic appliance 1, and specifically referring to fig. 1, the orthodontic appliance 1 includes a bearing portion 11 that contacts at least a part of teeth, and the bearing portion 11 is disposed parallel to an occlusal surface or a horizontal surface and contacts a jaw surface of a part of teeth. The lingual side edge of the bearing part 11 extends toward the gingival direction to form an inner sidewall 12 positioned at the lingual side of the dental arch, and specifically may extend in the maxillary and mandibular directions by 1mm to 3mm to cover lingual sides of maxillary teeth and mandibular teeth and a part of a gingival area, respectively. The labial and buccal sides of the carrier 11 extend toward the gum direction to form the outer side wall 13, and as such, the outer side wall 13 may extend 1mm to 9mm in the maxillary and mandibular directions to cover labial sides of the maxillary and mandibular teeth and a portion of the gum region, respectively, and the outer side wall 13 can block contact of labial and buccal muscles with the dentition, thereby eliminating influence of muscles on tooth correction during correction. The outer side wall 13, the bearing 11 and the inner side wall 12 enclose an upper groove 14 defining an upper dental arch and a lower groove 15 defining a lower dental arch; the relative position relationship between the upper groove 14 and the lower groove 15 is the upper and lower jaw relationship of the final correction target, and the coverage relationship of the teeth in the anterior teeth area at the position of the correction target is corresponding to the sagittal distance between the positions corresponding to the anterior teeth area of the upper groove 14 and the lower groove 15.
In some embodiments, referring to fig. 2 and 3, for the anti-mandibular case, after the patient wears the appliance 1, the anterior maxillary teeth will be subjected to labial orthodontic forces and the anterior mandibular teeth will be subjected to lingual adduction orthodontic forces. For the above-mentioned situation, the appliance 1 may adopt the lip side of the outer side wall 13 to be provided with the protruding ridge structure 16 that can prevent the teeth of the anterior maxillary tooth from rotating labially by using the labial muscle force, because the incised ends of the teeth are free ends, and movement can occur more easily in general, so the ridge structure 16 is located in the maxillary region of the outer side wall 13 and is disposed adjacent to the incised ends of the corresponding teeth, and the distance between the ridge structure 16 and the gum line of the corresponding teeth is 1mm-3mm, which is advantageous in that the labial muscle force caused by the ridge structure 16 can better act on the incised end positions of the teeth of the anterior maxillary tooth region, and thus, accurate and effective control force is realized.
With continued reference to FIG. 4, the ridge structure 16 on the appliance 1 has a labially projecting height L1 of between 3mm and 10 mm. The ridge structure 16 is effective to contact the labial muscles and cause different muscular tensions by the different heights of the projections, preventing undesired rotation of the teeth by the force of the perioral muscles.
In addition, also in the case of the inverse jaw, after the patient wears the appliance 1, the teeth of the anterior maxillary dental region are subjected to labial correction force, and the teeth of the anterior mandibular dental region are subjected to lingual adduction correction force. The appliance 1 shown in fig. 5 may also be used, with the lingual side of the inner side wall 12 being convex to the lingual side and provided with ridge structure 16 which prevents lingual rotation of the anterior mandibular teeth by lingual muscle strength. In the same manner, movement or rotation of the incisors of the teeth in the anterior mandibular area is typically more likely to occur, and thus the ridge structure 16 is located in the mandibular area of the inner side wall 12 and adjacent to the incisors of the corresponding teeth, with the ridge structure 16 being located 1mm-3mm from the gum line of the corresponding teeth. Meanwhile, one end of the inner side wall 12 positioned in the mandibular area is provided with a certain radian, so that the tongue body can be lifted to the corresponding position of the convex ridge structure 16, and the lingual muscle strength can better act on the incised end position of the teeth in the mandibular anterior teeth area to realize the function of preventing the teeth in the mandibular anterior teeth from lingually rotating.
With continued reference to FIG. 6, the ridge structure 16 on the appliance 1 projects lingually to a height L2 of between 3mm and 6 mm. The ridge structure 16 can effectively contact the tongue body without affecting the placement position of the tongue body in the mouth, and the undesired rotation of the teeth is prevented by the strength of the tongue body.
In some embodiments, referring to fig. 7, for deep coverage cases, after the patient wears the appliance 1, the anterior maxillary teeth will be subjected to lingual adduction and the anterior mandibular teeth will be subjected to labial adduction. For the above-mentioned situation, the appliance 1 may adopt the lip side of the outer side wall 13 to be provided with the protruding ridge structure 16 that can prevent the teeth of the anterior mandibular tooth from rotating labially by the amount of labial muscle, because the incised ends of the teeth are free ends, and movement can occur more easily in general, so the ridge structure 16 is located in the mandibular region of the outer side wall 13 and is disposed adjacent to the incised ends of the corresponding teeth, and the distance between the ridge structure 16 and the gum line of the corresponding teeth is 1mm-3mm, which is advantageous in that the amount of labial muscle caused by the ridge structure 16 can better act on the incised end positions of the teeth in the anterior maxillary dental region, thereby realizing accurate and effective control force.
In addition, also in the case of deep coverage, after the patient wears the appliance 1, the teeth of the anterior maxillary dental region receive lingual adduction correction forces, and the teeth of the anterior mandibular dental region receive labial correction forces. The appliance 1 shown in fig. 8 and 9 may also be used, with lingual side surfaces of the inner side walls 12 being convex lingually provided with ridge structures 16 that prevent lingual rotation of the anterior maxillary teeth by lingual muscle strength. In the same manner, movement or rotation of the incisors of the teeth in the anterior maxillary region is generally more likely to occur, and thus the ridge structure 16 is located in the maxillary region of the inner side wall 12 and adjacent to the incisors of the corresponding teeth, and the ridge structure 16 is located at a distance of 1mm-3mm from the gum line of the corresponding teeth. Meanwhile, one end of the inner side wall 12 positioned in the mandibular area is provided with a certain radian, so that the tongue body can be lifted to the corresponding position of the convex ridge structure 16, and the lingual muscle strength can better act on the incised end position of the teeth in the maxillary anterior teeth area to realize the effect of preventing the lingual rotation of the teeth in the mandibular anterior teeth.
"any orthodontic appliance" is mentioned in the book by Baiyuxing, yang Li, zhao Hongzhu, by "orthodontic clinical treatment based on respiratory and perioral functions", no matter how effective it can align the teeth, the stability of the final position of the teeth depends on the mechanical balance between the various functions of the oromandibular and respiratory systems. Therefore, when the appliance is used for treating the problem of dentition or the problem of malocclusion, the appliance system in the application takes the situation of the perioral muscles as one of reference factors, and the contact between the labial muscles and the dentition is blocked by using the outer side wall structure of the appliance, so that the influence of the perioral muscles on the appliance is eliminated, and the appliance is more accurate and reliable.
In some embodiments, as shown in fig. 10, the height of the lateral wall 13 in the vertical direction is between 19mm and 26mm at the anterior tooth zone height H1 and between 8mm and 13mm at the posterior tooth zone height H2 to meet the fit of the appliance 1 in the patient's mouth during wear, for example, to meet the fit for different sizes of dental arches. And for the appliance 1 used at different stages, the size can also be changed along with the need of correction, so as to provide correction accuracy.
In some embodiments, ridge structure 16 is disposed along a dental arch line against the labial side of lateral side wall 13 or against the lingual side of medial side wall 12. And, the ridge structure 16 covers 2-6 teeth of the anterior teeth area along the length of the arch curve. The ridge structures 16 may be arranged continuously or at intervals as desired for the appliance. For example, the ridge structure 16 is not provided for each missing tooth position, and the ridge structure 16 is provided on the outer side wall 13/inner side wall 12 of the other front teeth region corresponding to the tooth position. Alternatively, individual teeth are more prone to labial and lingual lateral rotation, with ridge structures 16 provided on the outer sidewall 13/inner sidewall 12 in the corresponding locations of their teeth.
In some embodiments, the ridge structure 16 is integrally formed with the appliance 1, and the appliance 1 is manufactured by using a silicone material and by injection molding. Models of the ridge structures 16 placed in different locations are made as desired, resulting in appliances 1 for different appliance regimens.
In addition, the ridge structure 16 is detachably connected to the appliance 1, and referring to fig. 11, the ridge structure 16 is fixed to the surface of the appliance 1 by adhesion. Alternatively, referring to fig. 12, the ridge structure 16 is fastened to the surface of the appliance 1 by means of a snap fit. In the case of a split connection, the ridge structure 16 may be a different material from the appliance 1 or a different mechanical strength from the appliance 1. Preferably, the mechanical strength of the ridge structure 16 is greater than the mechanical strength of the appliance 1, delivering more substantial force to the labial lingual muscles than to the teeth.
The application also discloses an interjaw relation adjustment correction system, which comprises a series of correction devices, wherein the series of correction devices are designed to gradually realize a treatment plan, the treatment plan can be divided into a plurality of correction stages, and the interjaw relation can be gradually made to reach a target position according to different correction requirements. Referring to fig. 13, the series of appliances includes at least a first appliance 1 and a second appliance 2, the first appliance 1 and the second appliance 2 have a configuration of the appliance 1 as set forth in any one of the above, the first appliance 1 corresponds to a first stage of the treatment plan, the second appliance 2 corresponds to a second stage of the treatment plan, the second stage is a subsequent stage of the first stage, and the first appliance 1 has a first ridge structure 16, the second appliance 2 has a second ridge structure 26, and a height X1 of the first ridge structure 16 protruding in a distal direction is greater than a height X2 of the second ridge structure 26 protruding in a distal direction.
In some embodiments, the superior and inferior troughs of the first appliance 1 have a first distance in the sagittal direction and the superior and inferior troughs of the second appliance 2 have a second distance in the sagittal direction, the first distance being equal to the second distance. The relative position relationship of the upper groove and the lower groove of the first appliance 1 is consistent with the relative position relationship of the upper groove and the lower groove of the second appliance 2, namely, the upper groove and the lower groove of the first appliance 1 correspond to the final target correction positions of the upper jaw and the lower jaw, and the upper groove and the lower groove of the second appliance 2 also correspond to the final target correction positions of the upper jaw and the lower jaw. Such a system may provide more adequate correction force than setting a gradual target position, thereby shortening the correction process. Also, in this case, the orthodontic forces of each appliance are different, and the initial teeth are subjected to greater orthodontic forces, that is, the teeth in the initial anterior teeth area are more likely to give out undesirable inclination of the labial lingual directions, so that the convex height of the ridge structure in the distal teeth direction is required in the initial stage of the orthodontic treatment, thereby obtaining greater muscular force to prevent the labial lingual inclination of the teeth. The teeth are subjected to smaller correction forces in the later stages of correction than in the early stages, so that excessive muscle force is not required to control the labial lingual inclination of the teeth.
It should be noted that, under the condition of no contradiction, the above examples can be freely combined according to needs to form different new embodiments, and the embodiments formed by the combination are all within the protection scope of the present utility model, and are not described herein in detail for the sake of saving the text of the application.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Likewise, the foregoing is merely specific embodiments of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (16)
1. An interjaw relation adjustment appliance, comprising a bearing portion in contact with at least a portion of teeth, a lingual edge of the bearing portion extending toward gums to form an inner sidewall on a lingual side of a dental arch, a labial and buccal side edge of the bearing portion extending toward gums to form an outer sidewall in contact with labial and buccal muscles; the outer side wall, the bearing portion and the inner side wall enclose an upper groove defining an upper dental arch and a lower groove defining a lower dental arch; the relative position relationship between the upper groove and the lower groove is the upper jaw and lower jaw relationship for correcting the final target, the labial surface of the outer side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating labially by using the labial muscle force, or the lingual surface of the inner side wall is provided with a convex ridge structure which can prevent the anterior teeth from rotating lingually by using the lingual muscle force.
2. The maxillo relationship adjustment appliance according to claim 1, wherein the ridge structure covers 2-6 teeth of the anterior dental zone along the length in the dental arch direction.
3. The maxillofacial relationship adjustment appliance according to claim 1, wherein the distance in the sagittal direction between the upper and lower anterior dental regions is between 1mm-3mm.
4. The jaw relation adjustment appliance of claim 2, wherein the ridge structure has a labial projection height of between 3mm and 10mm when the ridge structure is located on the labial side of the outer sidewall.
5. The jaw relation adjustment appliance of claim 2, wherein the ridge structure has a lingual projection height of between 3mm and 6mm when the ridge structure is located lingually of the inner sidewall.
6. The maxillofacial relationship adjusting appliance according to claim 4, wherein the ridge structure is located in the maxillary region of the lateral wall when a labial appliance is applied to a portion of the teeth in the anterior maxillary region.
7. The device of claim 4, wherein the anterior mandibular teeth are subjected to labial forces, and wherein the ridge structure is located in the mandibular region of the lateral wall.
8. The device of claim 5, wherein the ridge structure is located in the maxillary region of the inner side wall when the anterior maxillary dental region is subject to lingual orthodontic forces.
9. The device of claim 5, wherein the anterior mandibular teeth are subjected to lingual forces and the ridge structure is located in the mandibular region of the medial side wall.
10. The maxillofacial relationship adjustment appliance according to claim 6 or 7 or 8 or 9, wherein the ridge structure is disposed adjacent to a cut end of a corresponding tooth.
11. The maxillofacial relationship adjusting appliance according to claim 10, wherein the ridge structure is 1mm-3mm from the gum line of the corresponding tooth.
12. The jaw relation adjustment appliance of claim 2, wherein the ridge structure is in an integral arrangement or a spaced arrangement.
13. The jaw relation adjustment appliance of claim 1, wherein the ridge structure is formed by the appliance surface protruding in the distal direction.
14. The jaw relation adjustment appliance of claim 1, wherein the ridge structure is detachably connected to the appliance.
15. The jaw relation adjustment appliance of claim 1, wherein the ridge structure is adhesively secured to the appliance surface.
16. The jaw relation adjustment appliance of claim 14 or 15, wherein the mechanical strength of the ridge structure is greater than the mechanical strength of the appliance.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202320348509.XU CN219461460U (en) | 2023-02-28 | 2023-02-28 | Jaw relation adjusting appliance |
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| CN202320348509.XU CN219461460U (en) | 2023-02-28 | 2023-02-28 | Jaw relation adjusting appliance |
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| CN219461460U true CN219461460U (en) | 2023-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024140146A1 (en) * | 2022-12-28 | 2024-07-04 | 正雅齿科科技(上海)有限公司 | Orthodontic system for treating oral cavity and generation method therefor, electronic device, and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024140146A1 (en) * | 2022-12-28 | 2024-07-04 | 正雅齿科科技(上海)有限公司 | Orthodontic system for treating oral cavity and generation method therefor, electronic device, and storage medium |
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