An aligner with the functions of aligning teeth and promoting growth of jaw

By designing an orthodontic appliance that can both align teeth and promote jawbone growth, and utilizing push-pull devices and jawbone guiding devices, the problem of traditional orthodontic appliances being unable to simultaneously adjust tooth and jawbone growth has been solved, achieving synergy and convenience in orthodontic and jawbone correction.

CN120918833BActive Publication Date: 2026-02-13PEKING UNIV SCHOOL OF STOMATOLOGY
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Patent Information

Application Number
CN202511359986.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-09-23
Publication Date
2026-02-13
Estimated Expiration
2045-09-23

AI Technical Summary

Technical Problem

Existing orthodontic appliances cannot simultaneously align teeth and adjust the growth relationship between the upper and lower jaws. Traditional appliances have limited impact on jawbone growth, and the surgical procedures are highly invasive and complex.

Method used

An orthodontic appliance was designed that combines the functions of aligning teeth and promoting jawbone growth. It includes an maxillary pad, a mandibular pad, a jawbone guiding device, and a push-pull device. The push-pull device precisely adjusts the position of the teeth, while the jawbone guiding device changes the positional relationship between the upper and lower jaws.

Benefits of technology

It achieves precise tooth movement and coordinated jawbone growth, shortens the treatment cycle, reduces the need for surgery, and is especially suitable for adolescent patients.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of dental orthodontic device, especially to a dental orthodontic device with the functions of aligning teeth and promoting jawbone growth. The present application comprises a maxillary pad, a mandibular pad, a jawbone guiding device and a plurality of push-pull devices. The maxillary pad and the mandibular pad are internally formed with tooth accommodation grooves for accommodating the upper teeth and the lower teeth respectively. The push-pull devices are arranged on the side walls of the maxillary pad and the mandibular pad and pass through the side walls of the maxillary pad and the mandibular pad to be located in the tooth accommodation grooves. The push-pull devices comprise push-pull ends and driving ends. The push-pull ends are fixedly connected with the outer walls of the corresponding teeth, and the driving ends are used for driving the push-pull ends to push and pull the teeth. The jawbone guiding device is detachably installed on the top of the mandibular pad. The jawbone guiding device has a slope which is directed obliquely upward. By arranging the maxillary pad, the mandibular pad, the jawbone guiding device and the push-pull devices, the dental orthodontic device can realize the simultaneous performance of dental correction and jawbone correction, and greatly improve the convenience and synergy of the dental correction and the jawbone correction.
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Description

Technical Field

[0001] This invention relates to the field of orthodontic appliances, and in particular to an orthodontic appliance that combines the functions of aligning teeth and promoting jawbone growth. Background Technology

[0002] Malocclusion and jawbone dysplasia are long-standing challenges in the field of orthodontics and orthognathic surgery. These problems not only affect facial aesthetics but can also lead to health risks such as chewing dysfunction, speech problems, and temporomandibular joint disorders. Traditional orthodontic methods are mainly divided into two categories: orthodontic treatment for malocclusion and interventions to promote normal jawbone growth.

[0003] In orthodontic treatment, fixed orthodontic appliances (such as metal brackets and ceramic brackets) and removable appliances are widely used. These devices apply continuous, gentle force to slowly move teeth into the correct position, thereby achieving tooth alignment. However, these appliances mostly only address tooth position issues and have limited impact on jawbone growth. This is especially important for adolescent patients, whose rapid growth period necessitates the use of effective orthodontic tools to guide normal jawbone development, a need that traditional appliances often fail to meet. In clinical orthodontics, fixed orthodontic systems (metal or ceramic brackets) and removable appliances remain the primary means of achieving tooth alignment. Their biological mechanism involves using continuous and gentle mechanical force to induce remodeling of the periodontal ligament and alveolar bone, resulting in controlled, slow tooth displacement within the bone. However, this treatment modality primarily targets the adjustment of the crown-root three-dimensional position, with limited impact on the growth and modification of the maxillofacial bones. For adolescent patients who are still in the peak of growth and development, if there is bony sagittal, vertical or transverse disharmony, it is necessary to use orthodontic devices with bone growth improvement function (such as functional appliances, maxillary rapid expanders or bone anchorage assist devices) to promote coordinated jaw development, while traditional bracket systems often cannot achieve this goal.

[0004] On the other hand, functional appliances and surgery are commonly used methods to promote jawbone growth or adjust the relationship between the upper and lower jaws. Functional appliances aim to influence the growth pattern of the jawbone by changing the position of the mandible, and are suitable for early intervention to correct skeletal imbalances. However, these appliances lack effective correction capabilities for teeth that are already significantly misaligned, leading to the need for combination with other treatment methods in practice. Furthermore, while surgery can significantly improve severe maxillofacial deformities, its invasiveness, complexity, and long postoperative recovery period deter many patients, especially children and adolescents, and their parents who tend to prefer non-surgical treatments.

[0005] Therefore, there is an urgent need for an orthodontic appliance that can both correct misaligned teeth and adjust the growth relationship between the upper and lower jaws. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an orthodontic appliance that has the functions of aligning teeth and promoting jawbone growth, which solves the technical problem that existing orthodontic appliances cannot take into account both aligning teeth and the growth relationship between the upper and lower jaws.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0010] This invention provides an orthodontic appliance that combines teeth alignment with jawbone growth promotion, comprising a maxillary pad, a mandibular pad, a jawbone guiding device, and a push-pull device. The maxillary pad and mandibular pad each form a tooth-placement socket to accommodate the upper and lower teeth, respectively. The push-pull device is disposed on the sidewalls of the maxillary and mandibular pads and passes through the sidewalls of the maxillary and mandibular pads, located within the tooth-placement socket. The push-pull device includes a push-pull end and a drive end. The push-pull end is fixedly connected to the outer wall of the corresponding tooth, and the drive end drives the push-pull end to push and pull the tooth, thereby changing the alignment of the upper and lower teeth. The jawbone guiding device is detachably mounted on the top of the mandibular pad. The jawbone guiding device has an inclined surface facing obliquely upwards. When the maxillary and mandibular pads are in occlusion, the jawbone guiding device can move the mandibular pad forward, thereby moving the mandible forward and changing the positional relationship between the maxilla and mandible.

[0011] Preferably, each of the push-pull devices includes a first setter, a push-pull assembly, and a clamping assembly for fixing the push-pull assembly to the maxillary pad or the mandibular pad, wherein the first setter is the driving end; the maxillary pad and the mandibular pad each have a receiving space inside and at the end of the tooth socket away from the oral cavity; the clamping assembly is horizontally inserted through the maxillary pad or the mandibular pad, with one end of the clamping assembly placed in the receiving space and the other end located outside the maxillary pad or the mandibular pad, for clamping onto the maxillary pad or the mandibular pad; the first setter is inserted through the inside of the clamping assembly and screwed to the inner wall of the clamping assembly, the first setter includes a screwing end and a connecting end, the screwing end is located inside the clamping assembly, and the connecting end extends out from the end of the clamping assembly and the push-pull assembly away from the tooth and is rotatably connected, the push-pull assembly is located in the receiving space, and the push-pull end is fixedly connected to the tooth.

[0012] Preferably, the push-pull assembly includes a first connecting rod, a second connecting rod, and a plurality of spaced elastic arms; the plurality of elastic arms are all vertically arranged with both ends facing the teeth, and the plurality of elastic arms are the push-pull ends and push and pull the same tooth together; the second connecting rod is horizontally arranged and one end is connected to the end of the plurality of elastic arms away from the teeth; the first connecting rod is vertically connected to the second connecting rod; the first connecting rod is inserted into the first set screw, and the first set screw is rotatably connected to the first connecting rod through a limiting ring and a limiting groove.

[0013] Preferably, the elastic arm is U-shaped or arc-shaped, and a silicone pad is installed at the end of the elastic arm away from the first connecting rod. The silicone pad is fixedly connected to the tooth by an adhesive.

[0014] Preferably, the maxillary pad and the mandibular pad each have a vertically extending elongated hole on the side away from and the side near the oral cavity. The elongated hole communicates with the oral cavity, the tooth socket, and the receiving space. The clamping assembly and the first setter are both located in the elongated hole and the receiving space away from the oral cavity. The first setter and the push-pull assembly can move vertically along the elongated hole to change the vertical position of the push-pull assembly pushing and pulling the tooth.

[0015] Preferably, the clamping assembly includes a miniature nut, a sleeve, and a fixing plate; the sleeve is placed in the elongated hole away from the oral cavity, the fixing plate is fixedly installed at one end of the sleeve away from the outside, and the fixing plate is in contact with the side wall of the receiving space away from the alveolar socket, the other end of the sleeve is screwed to the miniature nut to clamp the clamping assembly onto the maxillary pad or the mandibular pad; the first set screw is screwed into the sleeve.

[0016] Preferably, the jawbone guiding device includes a mounting base, a guide plate, and an angle adjustment assembly; the mounting base is detachably mounted on the top of the mandibular pad, and the top of the guide plate is rotatably and obliquely mounted within the mounting base, the guide plate having an angle with the horizontal plane, and the oblique direction of the guide plate facing obliquely upward; one end of the angle adjustment assembly passes through the outer wall of the mounting base and is hinged to the side wall of the guide plate facing the mounting base; the angle adjustment assembly can drive the guide plate to rotate towards or away from the oral cavity, thereby changing the angle between the guide plate and the horizontal plane.

[0017] Preferably, the angle adjustment assembly includes a second set screw, two ear plates, and a hinge shaft; the two ear plates are slidably mounted on the side wall of the guide plate facing the mounting base, and the two ends of the hinge shaft are respectively fixedly connected to the opposite side walls of the two ear plates; the second set screw is screwed to the mounting base, and the second set screw passes through the mounting base and is rotatably connected to the hinge shaft.

[0018] Preferably, the angle between the guide plate and the horizontal plane is in the range of 45°-60°.

[0019] Preferably, the mounting base is detachably connected to the top of the chin pad via a groove and a protrusion, the groove and the protrusion being interference fit.

[0020] (III) Beneficial Effects

[0021] The beneficial effects of this invention are:

[0022] This invention discloses an orthodontic appliance that combines tooth alignment with jawbone growth promotion. By incorporating a push-pull mechanism, the push-pull end of the mechanism can directly push and pull the outer wall of the teeth. The push-pull force can be precisely adjusted via a drive end. Simply driving the drive end allows it to move the push-pull end, pushing or pulling the teeth to straighten protruding or recessed teeth, thus achieving correction. This allows for adjustments based on different tooth misalignments. Compared to traditional fixed orthodontic appliances, this invention achieves more precise tooth movement, shortens the treatment period for tooth alignment, and reduces the risk of tooth damage due to improper force application. Furthermore, the dentist can directly adjust the push or pull force of the mechanism externally, enabling adjustments without frequent appliance removal, greatly simplifying daily use for patients and the dentist's procedures. By incorporating a jawbone guiding device, the mandibular pad moves forward or backward during occlusion, guiding the mandible forward to promote temporomandibular joint growth. This alters the positional relationship between the maxilla and mandible, effectively promoting normal jawbone growth during the growth and development period and improving their positional relationship. For patients with mild to moderate jawbone dysplasia, long-term wear of this appliance can gradually adjust the jawbone positional relationship, avoiding or reducing the need for surgery. This invention, through the incorporation of a maxillary pad, mandibular pad, jawbone guiding device, and push-pull mechanism, enables simultaneous orthodontic and jawbone correction, significantly improving the convenience and synergy of both procedures. It is particularly suitable for adolescent patients requiring simultaneous improvement in tooth alignment and jawbone development. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an orthodontic appliance of the present invention that combines the functions of aligning teeth and promoting jawbone growth, when worn on the teeth.

[0024] Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 3This is a cross-sectional structural diagram of an orthodontic appliance of the present invention, which has the functions of aligning teeth and promoting jawbone growth, when worn on the teeth.

[0026] Figure 4 for Figure 3 Enlarged structural diagram at point B;

[0027] Figure 5 This is a three-dimensional disassembly diagram of the push-pull device of an orthodontic appliance that combines the functions of aligning teeth and promoting jawbone growth according to the present invention.

[0028] Figure 6 This is a schematic diagram of another cross-sectional structure of the orthodontic appliance of the present invention, which has the functions of aligning teeth and promoting jawbone growth, when worn on the teeth.

[0029] Figure 7 for Figure 6 Enlarged structural diagram at point C;

[0030] Figure 8 This is a three-dimensional structural diagram showing the angle adjustment component and guide plate of an orthodontic appliance that combines the functions of aligning teeth and promoting jawbone growth according to the present invention.

[0031] [Explanation of Labels in the Attached Image]

[0032] 1: Maxillary pad; 11: Tooth socket; 12: Long hole; 2: Mandibular pad; 3: Jawbone guide device; 31: Mounting base; 32: Guide plate; 33: Angle adjustment assembly; 331: Second set screw; 332: Ear plate; 333: Hinge shaft; 4: Push-pull device; 41: First set screw; 42: Push-pull assembly; 421: First connecting rod; 422: Second connecting rod; 423: Elastic arm; 43: Clamping assembly; 431: Miniature nut; 432: Sleeve; 433: Fixing plate; 44: Silicone pad; 5: Limiting ring; 6: Limiting groove; a: Accommodation space. Detailed Implementation

[0033] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0034] Example 1

[0035] like Figure 1As shown, an orthodontic appliance in this embodiment, which combines the functions of aligning teeth and promoting jawbone growth, includes an maxillary pad 1, a mandibular pad 2, a jawbone guiding device 3, and a push-pull device 4.

[0036] Specifically, the maxillary pad 1 and mandibular pad 2 are arch-shaped, and their interiors form tooth sockets 11 to accommodate the upper and lower teeth, respectively. A push-pull device 4 is disposed on the sidewalls of the maxillary pad 1 and mandibular pad 2 and passes through the sidewalls of the maxillary pad 1 and mandibular pad 2, located within the tooth sockets 11. Each push-pull device 4 includes a push-pull end and a drive end. The push-pull end is fixedly connected to the outer wall of the corresponding tooth, and the drive end is disposed inside the maxillary pad 1 and mandibular pad 2 and passes through the maxillary pad 1 and mandibular pad 2 to drive the push-pull end, thereby pushing and pulling the teeth to change the alignment of the upper and lower teeth. The push-pull end of the push-pull device 4 can directly push and pull the outer wall of the teeth, and the pushing and pulling force can be precisely adjusted through the drive end. That is, only the drive end needs to be driven to push or pull the teeth, thereby correcting protruding or recessed teeth by pushing and pulling them flat, thus achieving adjustment according to different tooth misalignments. Compared to the force application method of traditional fixed orthodontic appliances, this embodiment can achieve more precise tooth movement, shorten the treatment cycle for tooth alignment, and reduce the risk of tooth damage caused by improper force application. Moreover, the dentist can directly adjust the pushing or pulling force of the push-pull device 4 externally, allowing for adjustments without frequent removal of the orthodontic appliance, greatly facilitating daily use for patients and the operating procedures for dentists.

[0037] The jawbone guiding device 3 is detachably installed on top of the mandibular pad 2. The jawbone guiding device 3 has an upward-facing inclined surface. When the maxillary pad 1 and mandibular pad 2 are in occlusion, the jawbone guiding device 3 can move the mandibular pad 2 forward, guiding the mandible forward and thus changing the positional relationship between the maxilla and mandible. This promotes the growth of the temporomandibular joint, conforming to the physiological growth patterns of the jawbone in adolescents, effectively promoting normal jawbone growth during the growth and development period and improving the positional relationship between the maxilla and mandible. It should be noted that before wearing the appliance, the position of the jawbone needs to be checked; specifically, in cases of mandibular retraction, the inclined surface should face upwards towards the oral cavity. For patients with mild to moderate jawbone dysplasia, the positional relationship of the jawbone can be gradually adjusted through long-term wear of this appliance, avoiding or reducing the need for surgery. Furthermore, by adopting a detachable design, the jawbone guiding device 3 can be flexibly removed according to daily needs such as eating and cleaning, ensuring the wearing time while minimizing the impact on daily life.

[0038] This embodiment, by incorporating an maxillary pad 1, a mandibular pad 2, a jawbone guiding device 3, and a push-pull device 4, breaks through the limitations of traditional orthodontic appliances that can only address single issues such as tooth alignment or jawbone growth. The push-pull device 4 can specifically push and pull the outer walls of the teeth to align them; the jawbone guiding device 3 can move the mandible forward through biting movements to adjust the jawbone relationship. This eliminates the need for patients to wear multiple orthodontic appliances simultaneously, significantly improving the convenience and synergy of orthodontic and jawbone correction, making it particularly suitable for adolescent patients who need to improve both tooth alignment and jawbone development at the same time.

[0039] Furthermore, such as Figures 2-4 As shown, each push-pull device 4 includes a first setter wire 41, a push-pull assembly 42, and a clamping assembly 43 for fixing the push-pull assembly 42 to the maxillary pad 1 or mandibular pad 2. The first setter wire 41 is the driving end. Both the maxillary pad 1 and mandibular pad 2 have a receiving space a inside, located on the side of the alveolar ridge 11 outside the teeth. The clamping assembly 43 is horizontally inserted through the maxillary pad 1 or mandibular pad 2, with one end of the clamping assembly 43 placed in the receiving space a and the other end located outside the maxillary pad 1 or mandibular pad 2, for clamping onto the maxillary pad 1 or mandibular pad 2. The first setter wire 41 is inserted through the clamping assembly 43 and screwed to the inner wall of the clamping assembly 43, so that the clamping assembly 43 not only provides a stable support base for the first setter wire 41, but also prevents the push-pull device 4 from shifting or loosening during orthodontic treatment due to tooth reaction forces or oral activities (such as chewing or speaking) through its own clamping action. The first setter 41 includes a screwing end and a connecting end. The screwing end is located inside the clamping assembly 43, and the connecting end extends out of the clamping assembly 43 and is rotatably connected to the push-pull assembly 42. The push-pull assembly 42 is located within the receiving space a, and the push-pull end is fixedly connected to the tooth. When it is necessary to change the pushing or pulling force on the tooth, the first setter 41 can be screwed forward or backward using a small screwdriver or other tool capable of screwing it. This causes the first setter 41 to move the push-pull assembly 42 toward or away from the tooth, thereby allowing the push-pull end to continuously apply pushing or pulling force to the tooth. Different pushing or pulling forces can be precisely applied according to the different misalignments of each tooth to correct teeth with different misalignments. This meets the orthodontic needs of teeth with different misalignments, avoids the problem of root resorption due to excessive force or affecting the orthodontic progress due to insufficient force, and improves the applicability and adaptability of this orthodontic appliance.

[0040] Furthermore, such as Figure 4 and Figure 5As shown, the push-pull assembly 42 includes a first connecting rod 421, a second connecting rod 422, and multiple spaced elastic arms 423. All elastic arms 423 are vertically oriented with both ends facing the teeth, and are arranged laterally in parallel at intervals. These multiple elastic arms 423 serve as push-pull ends and work together to push and pull the same tooth, achieving multi-point pushing and pulling of the same tooth. This ensures that the pushing and pulling forces exerted by the multiple elastic arms 423 on the tooth are more uniform, preventing uneven force application from a single elastic arm 423 that could prevent the tooth from being corrected to the preset position, thus guaranteeing the consistency and stability of the force applied to the tooth. Simultaneously, the multiple elastic arms 423 are deformable, which can buffer stress through deformation during long-term force application, reducing fatigue damage and extending service life. The elastic arms 423 can be made of medical-grade titanium alloy, which has excellent biocompatibility, is non-irritating to the oral mucosa and gums, and is resistant to saliva corrosion, making it suitable for long-term implantation in the oral environment. Furthermore, its elastic modulus is approximately 110-117 GPa, providing sufficient structural strength to transmit orthodontic forces while also possessing a certain degree of elastic deformation capability. This allows for flexible force application to the teeth through bending, avoiding tooth damage caused by rigid contact. Alternatively, medical-grade stainless steel, such as 316L stainless steel, can be used. It possesses excellent corrosion resistance and mechanical strength, with an elastic modulus of approximately 190-200 GPa. In scenarios requiring high precision in force application and with minor tooth misalignment, the stainless steel elastic arm 423 can transmit stable push or pull forces through precise micro-deformation while ensuring structural stability. Other medical-grade metal materials may also be used; the specific material is not limited here.

[0041] The second connecting rod 422 is horizontally positioned, with one side connected to the ends of multiple elastic arms 423 furthest from the teeth. This allows the multiple elastic arms 423 to form a unified elastic structure, ensuring that each elastic arm 423 moves synchronously during force application. This prevents individual elastic arms 423 from shifting or being damaged due to excessive force, thus guaranteeing the consistency and stability of the force direction. The first connecting rod 421 is perpendicularly connected to the second connecting rod 422. The first connecting rod 421 is inserted into the first setter 41 to form an efficient force transmission path. That is, when the first setter 41 is tightened, it can directly and stably transmit the driving force to the elastic arms 423 through the first connecting rod 421 and the second connecting rod 422. Tightening the first setter 41 causes the first connecting rod 421, the second connecting rod 422, and the multiple elastic arms 423 to move simultaneously toward or away from the teeth, pushing or pulling the teeth. It also facilitates precise adjustment of the pushing or pulling force of the elastic arms 423, making the orthodontic process more efficient and smooth. The first set screw 41 is rotatably connected to the first connecting rod 421 through the limiting ring 5 and the limiting groove 6. The setting of the limiting ring 5 and the limiting groove 6 enables the first set screw 41 to rotate stably relative to the first connecting rod 421, thereby avoiding the jamming phenomenon between the first set screw 41 and the first connecting rod 421 when the first set screw 41 is turned, and improving the stability of the relative rotation between the first set screw 41 and the first connecting rod 421.

[0042] Furthermore, such as Figure 4 and Figure 5 As shown, the elastic arm 423 is U-shaped or arc-shaped, ensuring that each elastic arm 423 makes two-point contact with the tooth, avoiding concentrated local force on the tooth and ensuring smooth tooth movement. A silicone pad 44 is installed at the end of the elastic arm 423 furthest from the first connecting rod 421, and the silicone pad 44 is fixedly connected to the tooth with an adhesive. Since tooth enamel, although hard, is relatively brittle, if the elastic arm 423 directly contacts the tooth, friction can easily occur during pushing and pulling forces or slight tooth movement, potentially leading to enamel wear, microcracks, or even detachment. The silicone pad 44 is soft and elastic, preventing the end of the elastic arm 423 from making hard contact with the tooth. It acts as a buffer layer between the elastic arm 423 and the tooth, transforming hard contact into soft contact, avoiding direct friction between metal and enamel, and effectively protecting the integrity of the enamel.

[0043] Furthermore, such as Figure 2 and Figure 4As shown, both the maxillary pad 1 and the mandibular pad 2 have vertically extending elongated holes 12 on their sides, one away from the oral cavity and the other near the oral cavity. These elongated holes 12 communicate with the oral cavity, the tooth socket 11, and the receiving space a. The clamping assembly 43 and the first setter 41 are located within the elongated hole 12 and the receiving space a, respectively. The first setter 41 and the push-pull assembly 42 can move vertically along the elongated hole 12 to change the vertical position of the push-pull assembly 42 in pushing and pulling the teeth. Since the misalignment of different teeth varies, such as different tilt angles, the elongated holes 12 on the maxillary pad 1 and the mandibular pad 2 can change the vertical position of the push-pull device 4, allowing the dentist to adjust the position of the corresponding push-pull device 4 individually according to the specific condition of each tooth, thus applying force to different positions on different teeth.

[0044] Furthermore, such as Figure 4 and Figure 5 As shown, the clamping assembly 43 includes a miniature nut 431, a sleeve 432, and a fixing plate 433. The sleeve 432 is placed inside the elongated hole 12 away from the oral cavity. The fixing plate 433 is fixedly installed at the end of the sleeve 432 away from the outside, and the fixing plate 433 is in contact with the side wall of the receiving space a away from the alveolar socket 11. The other end of the sleeve 432 is screwed to the miniature nut 431 to clamp the clamping assembly 43 onto the maxillary pad 1 or the mandibular pad 2. The miniature nut 431, the sleeve 432, and the fixing plate 433 can form a bidirectional fixing structure to firmly lock the entire clamping assembly 43 in the preset position of the maxillary pad 1 or the mandibular pad 2, avoiding the clamping assembly 43 and the push-pull assembly 42 from loosening due to vibrations or tooth reaction forces generated by oral movements, and providing a stable support base for the first setter 41 and the push-pull assembly 42, ensuring that the pushing and pulling forces can be continuously and accurately transmitted to the teeth. When the vertical position of the clamping assembly 43 needs to be adjusted, loosening the micro nut 431 allows the sleeve 432 to move along the elongated hole 12. Once in position, retightening secures it. The operation is simple and the positioning is precise. The first set screw 41 is placed inside the sleeve 432 and screwed to it. The sleeve 432 provides a guide channel for the first set screw 41 and allows the amount of screwing of the first set screw 41 to be accurately converted into the displacement of the push-pull assembly 42, further improving the accuracy of the force applied to the teeth. Preferably, the fixing piece 433 is an arc-shaped piece that adapts to the inner wall of the tooth socket 11.

[0045] Furthermore, such as Figure 6 and Figure 7As shown, the jawbone guiding device 3 includes a mounting base 31, a guide plate 32, and an angle adjustment assembly 33. The mounting base 31 is detachably mounted on top of the mandibular pad 2, allowing for easy removal and convenient adjustment of the guide plate 32 by the dentist. Furthermore, it allows the entire jawbone guiding device 3 to be removed during eating, oral hygiene, or other oral examinations, facilitating oral hygiene maintenance such as cleaning the braces and guide plate 32, reducing food debris buildup and bacterial growth. Reinstallation is simple and quick during treatment. The top of the guide plate 32 is rotatably tilted within the mounting base 31, forming an angle with the horizontal plane, with the tilt direction of the guide plate 32 pointing diagonally upwards. Figure 7 As shown, the guide plate 32 faces upwards in the oral cavity to correct mandibular retrusion and move the mandible forward. One end of the angle adjustment component 33 passes through the outer wall of the mounting base 31 and is hinged to the side wall of the guide plate 32 facing the mounting base 31. The angle adjustment component 33 can rotate the guide plate 32 towards or away from the oral cavity, thereby precisely changing the angle between the guide plate 32 and the horizontal plane. Because different patients (especially adolescents) have different jawbone development and mandibular retrusion needs, the angle adjustment component 33 can set the tilt angle of the guide plate 32 according to the different patients' skeletal morphology, ensuring that the mandible moves forward in the most suitable direction and range, avoiding insufficient or excessive guidance due to a fixed angle, and improving the targetedness and effectiveness of jawbone growth adjustment. Moreover, the angle adjustment component 33 also allows doctors to gradually adjust the angle of the guide plate 32 at different treatment stages, such as initial adaptation, intermediate adjustment, and later stabilization, so that the degree of mandibular protrusion can be gradually adjusted accordingly. For example, a larger tilt angle can be set in the early stages of treatment to help the patient adapt, and the angle can be gradually reduced as treatment progresses to enhance the guiding effect and ensure the continuity and gradualness of jaw adjustment.

[0046] Preferably, the side of the mounting base 31 facing the oral cavity is designed with an arc shape, which can prevent the mounting base 31 from interfering with the maxillary pad 1 when the guide plate 32 is engaged with the maxillary pad 1, and prevent the mouth from being unable to close at night or in the biting state, thereby preventing the mandible from being unable to adjust.

[0047] Furthermore, such as Figure 7 and Figure 8 As shown, the angle adjustment assembly 33 includes a second set screw 331, two lugs 332, and a hinge shaft 333. The two lugs 332 are slidably mounted on the side wall of the guide plate 32 facing the mounting base 31. Figure 8As shown, two ear plates 332 are vertically fixedly connected to a connecting plate, and a groove is provided on the side of the guide plate 32 facing the second setter 331. The connecting plate is embedded in the groove and can move along the extension direction of the groove. The two ends of the hinge shaft 333 are fixedly connected to the opposite sidewalls of the two ear plates 332 respectively. The second setter 331 is screwed to the mounting base 31, and the second setter 331 passes through the mounting base 31 and is rotatably connected to the hinge shaft 333. By setting the second setter 331, the doctor can finely adjust the angle of the guide plate 32 by turning the second setter 331. Moreover, by slidably mounting the ear plates 332 on the guide plate 32, it is ensured that the second setter 331 is always in a horizontal state, thereby ensuring the accuracy of the angle adjustment of the guide plate 32. This avoids the second setter 331 being unable to continue turning when the guide plate 32 is adjusted because the ear plates 332 cannot slide with the guide plate 32, thus affecting the angle adjustment of the guide plate 32.

[0048] Preferably, the angle between the guide plate 32 and the horizontal plane is in the range of 45°-60°, which can effectively guide the mandible to move forward when the maxillary pad 1 and mandibular pad 2 are occlusal, so as to guide the mandible to develop along the ideal growth trajectory, promote the bone growth of the temporomandibular joint condyle and improve the relationship between the maxilla and mandible.

[0049] Furthermore, the mounting base 31 is detachably connected to the top of the chin pad 2 via a groove and a protrusion. The groove and protrusion are interference-fitted (not shown in the figure), allowing the mounting base 31 to be quickly and easily installed onto or removed from the chin pad 2. When the mounting base 31 needs to be removed, it can be directly removed using tweezers or by hand. When installation is required, the protrusion of the mounting base 31 is aligned with the groove of the chin pad 2 using tweezers or by hand, and the mounting base 31 is pushed until the protrusion is fully inserted into the groove. This operation is convenient and quick, allowing doctors to easily inspect, adjust, or replace parts as needed, improving operational flexibility and efficiency. Preferably, the groove is located on the top of the chin pad 2, and the protrusion is located on the bottom of the mounting base 31. When correcting jawbone position, if the mandibular retrusion is severe, the groove connects to the oral cavity, and the inclined surface of the guide plate 32 faces the oral cavity. This allows the maxillary pad 1 to move the mandible forward due to the action of the guide plate 32 when the maxillary pad 1 and mandibular pad 2 are in occlusion, thus improving the mandibular retrusion. Furthermore, by using an interference fit between the groove and the protrusion, a tight connection between the mounting base 31 and the mandibular pad 2 is ensured, preventing the device from loosening or falling off due to daily activities. This guarantees the stability and reliability of the appliance during use and reduces the risk of deviation or failure during correction.

[0050] It should be noted that both the maxillary pad 1 and the mandibular pad 2 are made of transparent material, which can be medical-grade polymethyl methacrylate. This material has excellent biocompatibility, is non-irritating to oral tissues, and its color closely resembles the natural color of teeth, resulting in good aesthetics. The mounting base 31, guide plate 32, and ear plate 332 can be made of materials such as polyetheretherketone (PEEK) or medical-grade zirconia ceramic, which are high in strength and wear-resistant. The silicone pad 44 can be made of medical-grade silicone rubber, which has excellent biocompatibility and elasticity, allowing it to closely conform to the tooth surface, buffering the hard contact of the elastic arm 423. It is also resistant to saliva corrosion, does not easily age, and can be stably connected to the teeth using medical adhesives. The first setter 41, the second setter 331, the first connecting rod 421, the second connecting rod 422, the hinge shaft 333, and the clamping assembly 43 can be made of medical-grade stainless steel (316L) or titanium alloy, which are high in strength and wear-resistant. The straight-line length from the silicone pad 44 to the first set screw 41 is approximately 2mm-3mm, the thickness of the silicone pad 44 is approximately 0.2mm-0.4mm, and the straight-line length from the miniature nut 431 to the fixing piece 433 is approximately 1mm-1.5mm. The height of the mounting base 31 is approximately 3mm-5mm, the length of the guide plate 32 is approximately 5mm-8mm, and the length of the second set screw 331 is approximately 2mm-4mm.

[0051] Based on the above structure, the orthodontic principle of an appliance in this embodiment that combines tooth alignment with jawbone growth is as follows:

[0052] Before orthodontic and jawbone correction, the doctor examines the misaligned teeth to determine the push-pull points and positions for the misaligned teeth.

[0053] After confirmation, loosen the micro nut 431 and use a tool, such as tweezers, to adjust the vertical position of the clamping assembly 43, the first set screw 41, and the push-pull assembly 42, moving them vertically along the elongated hole 12. Adjust the position of each push-pull device 4 according to the above operation. The position of each push-pull device 4 may be different or the same, ensuring that the multiple elastic arms 423 in each push-pull assembly 42 are in the push-pull position. Then, re-tighten the micro nut 431 onto the sleeve 432, as shown. Figure 2 As shown, the miniature nut 431 and the fixing plate 433 work together to clamp onto the upper jaw pad 1 or the lower jaw pad 2, and the push-pull assembly 42 and the first set screw 41 are stably located in the push-pull position.

[0054] After determining the position, check the current positional relationship between the maxilla and mandible to determine the angle that the guide plate 32 should be adjusted to. After the check is completed, if... Figure 7As shown, the doctor uses a small screwdriver or other tools to tighten the second set screw 331, so that the top of the guide plate 32 can rotate around the axis of its hinge with the mounting base 31. During the rotation of the guide plate 32, the hinge plate also slides along the direction of the slide groove, ensuring that the guide plate 32 can smoothly rotate to the preset angle.

[0055] After the guide plate 32 is adjusted to the desired angle, medical adhesive is applied to each silicone pad 44. After application, the maxillary pad 1 and mandibular pad 2 are placed on the upper and lower teeth, respectively. Then, the dentist uses a small screwdriver or similar tool to tighten each first set screw 41. Figure 4 As shown, the first setter 41 applies a pushing force to the first connecting rod 421, which then transmits the force to the second connecting rod 422. The second connecting rod 422 decomposes the force and evenly distributes it to the multiple elastic arms 423, allowing the multiple elastic arms 423 to continuously apply a pushing force to the teeth. This enables the silicone pad 44 to be firmly bonded to the teeth via the medical-grade adhesive applied to it. After the connection between the silicone pad 44 and the teeth is stable, the first setter 41 is continued to be screwed on. For protruding teeth, screwing on the first setter 41 causes the multiple elastic arms 423 to push against the protruding teeth, applying a pushing force. For concave teeth, the first setter 41 is screwed on in the opposite direction, causing the first setter 41 to pull the elastic arms 423 outward, thereby causing the multiple elastic arms 423 to pull the concave teeth, applying a pulling force. This ensures that the multiple elastic arms 423 in each push-pull assembly 42 can correct teeth with different misalignments.

[0056] Thus, the installation of this orthodontic appliance is completed. After a period of time, the dentist can directly screw on the first setter 41 and the second setter 331 to adjust the pushing or pulling force of the elastic arm 423, as well as the angle of the guide plate 32, to further improve the position of the teeth and mandible. Further details will not be provided here.

[0057] After the orthodontic treatment is complete, the maxillary pad 1 and mandibular pad 2 need to be removed. First, the jawbone guide device 3 is removed. Then, the dentist uses forceps to hold a small wad of medical cotton, soaking the cotton in a dissolving agent (such as a dental solution containing citric acid). The forceps are then inserted through the two elongated holes 12, allowing the dissolving agent in the cotton to coat each silicone pad 44. This process is allowed to continue for 1-2 minutes, allowing the dissolving agent to soften the adhesive. After the adhesive has softened, the dentist uses a dental curette with a head approximately 0.5-1mm wide and rounded edges to cut along the edge between the silicone pad 44 and the tooth surface. Using leverage, the silicone pad 44 is separated from the tooth surface, thus separating each silicone pad 44 from the tooth surface. Once all the silicone pads 44 are separated from the tooth surface, the maxillary pad 1 and mandibular pad 2 can be removed directly. Finally, the adhesive is completely removed by gently polishing with an ultrasonic scaler (low power mode) or a polishing cup, resulting in a tooth surface condition consistent with that before the orthodontic treatment.

[0058] It should be noted that if the positional relationship between the maxilla and mandible is appropriate, but the teeth are not aligned, the mandibular guide device 3 can be removed immediately to avoid affecting the continued forward movement of the mandible.

[0059] Example 2

[0060] Unlike Embodiment 1, the jawbone guiding device 3 in this embodiment can also inhibit mandibular growth. For example, in cases of severe mandibular protrusion, i.e., "underbite," it is necessary to inhibit mandibular growth to cause mandibular retraction. It should be noted that the structure of the jawbone guiding device 3 in this embodiment is the same as that of the jawbone guiding device in Embodiment 1.

[0061] Specifically, since the jawbone guiding device adopts a detachable structural design, the jawbone guiding device 3 in this embodiment is mirrored relative to the jawbone guiding device 3 in embodiment one, that is, the inclined surface of the guiding plate faces outward, so as to enable the mandible to retract during the biting process, thereby inhibiting the growth of the mandible.

[0062] More specifically, the groove on the mandibular pad 2 is connected to the outside, and the mounting seat 31 is inserted into the groove from the outside through the protrusion, so that when the maxillary pad 1 touches the guide plate 32 during occlusion, the mandibular pad 2 can be moved backward, thereby realizing the posterior movement of the mandible, so as to correct the "underbite".

[0063] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0064] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0065] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0066] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0067] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An orthodontic appliance that combines the functions of aligning teeth and promoting jawbone growth, characterized in that, The device comprises a maxillary pad (1), a mandibular pad (2), a jawbone guiding device (3) and a push-pull device (4); The maxillary pad (1) and the mandibular pad (2) are internally formed with tooth sockets (11) for accommodating the upper teeth and the lower teeth respectively; The push-pull device (4) is arranged on the side wall of the maxillary pad (1) and the mandibular pad (2) and penetrates through the side wall of the maxillary pad (1) and the mandibular pad (2) to be located in the tooth socket (11), the push-pull device (4) comprises a push-pull end and a driving end, the push-pull end is fixedly connected with the outer wall of the corresponding tooth, and the driving end is used for driving the push-pull end to push and pull the tooth to change the arrangement mode of the upper teeth and the lower teeth; The jawbone guiding device (3) is detachably mounted on the top of the mandibular pad (2), the jawbone guiding device (3) has a slope, the slope is directed obliquely upward, and the jawbone guiding device (3) can drive the mandibular pad (2) to move forward when the maxillary pad (1) and the mandibular pad (2) are occluded, so that the mandible moves forward, thereby changing the positional relationship between the maxilla and the mandible.

2. The device according to claim 1, wherein: Each of the push-pull devices (4) comprises a first top wire (41), a push-pull assembly (42) and a clamping assembly (43) for fixing the push-pull assembly (42) to the maxillary pad (1) or the mandibular pad (2), and the first top wire (41) is the driving end; The inside of the maxillary pad (1) and the mandibular pad (2) and the end of the tooth socket (11) away from the oral cavity are provided with a receiving space (a); The clamping assembly (43) is horizontally arranged in the maxillary pad (1) or the mandibular pad (2), one end of the clamping assembly (43) is arranged in the receiving space (a), and the other end is arranged outside the maxillary pad (1) or the mandibular pad (2) for clamping the maxillary pad (1) or the mandibular pad (2); The first top wire (41) is arranged in the inside of the clamping assembly (43) and is screwed with the inner wall of the clamping assembly (43), the first top wire (41) comprises a screwing end and a connecting end, the screwing end is arranged in the clamping assembly (43), the connecting end is arranged outside the clamping assembly (43) and is rotatably connected with the end of the push-pull assembly (42) away from the tooth, the push-pull assembly (42) is arranged in the receiving space (a), and the push-pull end is fixedly connected with the tooth.

3. The device according to claim 2, wherein: The push-pull assembly (42) comprises a first connecting rod (421), a second connecting rod (422) and a plurality of elastic arms (423) arranged at intervals; The plurality of elastic arms (423) are vertically arranged and both ends thereof are directed toward the tooth, and the plurality of elastic arms (423) are the push-pull end and jointly push and pull the same tooth. The second connecting rod (422) is arranged transversely and one end thereof is connected with the ends of the plurality of elastic arms (423) away from the teeth, the first connecting rod (421) is connected perpendicularly with the second connecting rod (422), the first connecting rod (421) is inserted into the first top screw (41), and the first top screw (41) is rotatably connected with the first connecting rod (421) through the limiting ring (5) and the limiting groove (6).

4. The aligning and jaw bone growth promoting appliance according to claim 3, characterized in that: The elastic arms (423) are U-shaped or arc-shaped, and the ends of the elastic arms (423) away from the first connecting rod (421) are provided with silica gel pads (44), which are fixedly connected with the teeth through an adhesive.

5. The aligning and jaw bone growth promoting appliance according to claim 3, characterized in that: The upper jaw pad (1) and the lower jaw pad (2) are provided with vertically extending long holes (12) on the sides away from and close to the oral cavity, the long holes (12) communicate with the oral cavity, the tooth sockets (11) and the accommodating space (a), the clamping assembly (43) and the first top screw (41) are located in the long holes (12) and the accommodating space (a) away from the oral cavity, and the first top screw (41) and the push-pull assembly (42) can be vertically moved along the long holes (12) to change the vertical position of the push-pull assembly (42) pushing and pulling the teeth.

6. The aligning and jaw bone growth promoting appliance according to claim 5, characterized in that: The clamping assembly (43) comprises a micro nut (431), a sleeve (432) and a fixed sheet (433); The sleeve (432) is arranged in the long hole (12) away from the oral cavity, the fixed sheet (433) is fixedly arranged at the end of the sleeve (432) away from the outside, and the fixed sheet (433) is attached to the side wall of the accommodating space (a) away from the tooth socket (11), and the other end of the sleeve (432) is screwed with the micro nut (431) to clamp the clamping assembly (43) on the upper jaw pad (1) or the lower jaw pad (2); The first top screw (41) is screwed in the sleeve (432).

7. The aligning and jaw bone growth promoting appliance according to claim 1, characterized in that: The jaw bone guiding device (3) comprises a mounting seat (31), a guiding plate (32) and an angle adjusting assembly (33); The mounting seat (31) is detachably arranged on the top of the lower jaw pad (2), the top of the guiding plate (32) is rotatably and obliquely arranged in the mounting seat (31), the guiding plate (32) has an included angle with the horizontal plane, and the oblique direction of the guiding plate (32) is upward and obliquely; One end of the angle adjusting assembly (33) is hingedly connected with the side wall of the guiding plate (32) facing the mounting seat (31) through the outer wall of the mounting seat (31). The angle adjusting assembly (33) can drive the guide plate (32) to rotate towards the direction of approaching or moving away from the oral cavity, so as to change the included angle between the guide plate (32) and the horizontal plane. 8.The aligner with the functions of aligning teeth and promoting jaw growth according to claim 7, wherein: The angle adjusting assembly (33) comprises a second top screw (331), two ear plates (332) and a hinged shaft (333); The two ear plates (332) are slidably installed on the side wall of the guide plate (32) facing the mounting seat (31), and the two ends of the hinged shaft (333) are fixedly connected with the opposite side walls of the two ear plates (332), respectively; The second top screw (331) is screwed with the mounting seat (31), and the second top screw (331) is rotatably connected with the hinged shaft (333) through the mounting seat (31). 9.The aligner with the functions of aligning teeth and promoting jaw growth according to claim 7, wherein: The included angle between the guide plate (32) and the horizontal plane ranges from 45° to 60°. 10.The aligner with the functions of aligning teeth and promoting jaw growth according to claim 7, wherein: The mounting seat (31) and the top of the lower jaw pad (2) are detachably connected through a recess and a protrusion, and the recess and the protrusion are in interference fit.

Citation Information

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