Correcting and repairing device for oral-maxillofacial deformity and manufacturing method of correcting and repairing device

Abstract

The invention discloses a correcting and repairing device for oral and maxillofacial deformity and a manufacturing method thereof, and belongs to the technical field of stomatology repairing and correction.The repairing device comprises an upper jaw assembly and a lower jaw plate, the lower end of the upper jaw assembly is connected with an upper supporting assembly, and the two sides of the upper end of the lower jaw plate are connected with lower supporting rods; one sides, far away from the jaw, of the upper support component and the lower support rod are connected with upper and lower sleeve supports for sleeving teeth, and the other sides of the upper sleeve support and the lower support rod are connected with a plurality of bracket components; the bracket assembly comprises a single crystal aluminum oxide ceramic bracket box, a medical stainless steel sealing plate and a telescopic connecting rod; an upper zirconia ceramic occlusion block and a lower zirconia ceramic occlusion block are respectively arranged at the end parts of an upper supporting rod and a lower supporting rod of the upper supporting assembly; during manufacturing, parameters are determined through intraoral scanning and images, parts are designed through CAD, laser sintering and 3D model printing are adopted, and all the parts are assembled and then worn.

Description

Technical Field

[0001] This invention relates to the field of oral medical restoration and orthodontics, specifically to an orthodontic appliance for the correction of maxillofacial deformities and its manufacturing method. Background Technology

[0002] Orthodontic treatment of maxillofacial deformities is an important research direction in the field of oral medicine. Its core requirement is to achieve jaw position adjustment and tooth trajectory guidance through personalized orthodontic appliances, while ensuring wearing comfort and orthodontic stability.

[0003] Currently, in terms of fit and wearing experience, most orthodontic appliances for maxillofacial deformities on the market are standardized or semi-standardized, making it difficult to flexibly adjust the lateral spacing and vertical position according to the differences in the maxillofacial contours of different patients. Furthermore, most appliances are not designed with adaptive structures for the natural movement trajectory of the jaw, making it easy for components to interfere when the patient opens, closes, or protrudes the mandible, further reducing wearing safety and comfort. Traditional orthodontic appliances have a relatively simple corrective logic, either relying solely on the continuous force of the archwire for tooth traction or lacking effective jaw position guidance structures, making it difficult to simultaneously achieve precise adjustment of jaw position and tooth movement. The stability of the trajectory is not guaranteed; the fit between the archwire and bracket is not stable enough, which can easily lead to archwire displacement and teeth deviating from the preset trajectory, resulting in a longer treatment period or less than expected results. In terms of manufacturing and assembly efficiency, the production of existing orthodontic appliances still relies heavily on manual or semi-mechanized processes. Traditional methods of taking and making impressions to obtain patients' oral data result in a high error rate and make it difficult to guarantee the micron-level precision of key components. At the same time, the connections between components are mostly fixed designs, and the assembly process is cumbersome. The overall cycle from patient diagnosis and data acquisition to instrument production and final wearing is long, which not only increases the complexity of clinical operation, but also reduces the patient's treatment experience.

[0004] Therefore, there is an urgent need for an orthodontic appliance for maxillofacial deformities that has a multi-dimensional adjustable and adaptable structure, a synergistic and efficient correction mechanism, and digital precision manufacturing technology. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an orthodontic device for maxillofacial deformities and its manufacturing method.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an orthodontic prosthesis for maxillofacial deformities and its manufacturing method, comprising a maxillary component and a mandibular plate, wherein the lower end of the maxillary component is connected to the upper surface of an upper support component, the maxillary component is used to conform to the maxillary surface, the upper support component is used for connecting the components, the mandibular plate is disposed below the maxillary component and on the side away from the maxillary component, the mandibular plate is used to conform to the mandibular surface, the upper ends of the mandibular plate are connected to the upper ends of a lower support rod on both sides, the upper support component and the lower support rod on the side away from the maxillary component and the mandibular plate are connected to the sidewalls of an upper bracket and a lower bracket, the upper bracket and the lower bracket are used to be fitted onto the outer wall of the teeth, the middle of the side of the upper bracket and the lower support rod away from the upper support component and the lower support rod is connected to the outer wall of a bracket assembly, and multiple bracket assemblies are provided.

[0007] As a further preferred embodiment of this technical solution: The maxillary assembly and mandibular plate are made of medical-grade polymethyl methacrylate resin, while the upper and lower brackets are made of medical-grade silicone rubber to fit the outer wall of the teeth.

[0008] As a further preferred embodiment of this technical solution: The maxillary assembly includes a left plate and a right plate. The upper and lower surfaces of the left and right plates are provided with merging blocks. A through hole is provided in the middle of the merging block. The left plate and the right plate are connected by the merging blocks. The lower surfaces of the left and right plates are connected to the upper end of the mounting plate. Two waist-shaped through grooves are provided in parallel in the middle of the mounting plate.

[0009] As a further preferred embodiment of this technical solution: The upper support assembly includes an upper support rod with two mounting grooves on its upper surface. The lower end of the mounting plate is inserted into the through hole. The upper end of the upper support rod on the opposite side has a through hole for connecting with the waist-shaped groove in the mounting plate.

[0010] As a further preferred embodiment of this technical solution: The bracket assembly includes a tray, and multiple trays are provided. The upper tray, lower tray and tooth outer walls are respectively connected by adhesive. The lower end of the upper tray is hinged to the closing plate, and the upper tray is hinged to the upper end of the closing plate. Placement holes are provided on both sides of the tray, and a through groove is provided on one side of the placement hole.

[0011] As a further preferred embodiment of this technical solution: The tray is made of single-crystal alumina ceramic, the sealing plate is made of medical-grade stainless steel, and the edges of the placement holes are rounded.

[0012] As a further preferred embodiment of this technical solution: The upper support rod is connected to one side of the upper occlusal block at one end near the mandibular plate, and the lower support rod is connected to one side of the lower occlusal block at one end near the maxillary assembly. The upper and lower occlusal blocks are inclined on opposite sides, and the inclined sides of the upper and lower occlusal blocks abut against each other. The upper and lower occlusal blocks are made of zirconia ceramic material.

[0013] As a further preferred embodiment of this technical solution: The tray is equipped with an archwire inside. The archwire is arc-shaped and passes through the placement hole in the tray. Multiple limiting rings are fitted on the archwire and distributed on both sides of the tray. The archwire is made of nickel-titanium shape memory alloy, and the limiting rings are made of medical-grade stainless steel.

[0014] As a further preferred embodiment of this technical solution: The lower end of the tray connected to the side wall of the upper sleeve on both sides of the maxillary component is connected to one side of the hinge block, and the other side of the hinge block is hinged to the upper end of the telescopic link. The lower end of the telescopic link is hinged to the upper end of the lower tray near the mandibular plate. The telescopic link is made of medical-grade stainless steel and is used to adapt to the movement trajectory of the jaw.

[0015] As a further preferred embodiment of this technical solution: Three-dimensional data of the patient's maxillofacial region are obtained through intraoral scanning. Deformity parameters are determined by combining lateral cephalometric radiographs and curved tomographic films. The structure of each component is designed using CAD software, and a 3D printed model is generated. Titanium alloy support components are fabricated by laser sintering, and resin components are formed by photopolymerization 3D printing. Ceramic components are formed by isostatic pressing and then sintered at high temperature. The left and right plates are connected by a merging block bolt. The mounting plate is inserted into the mounting groove in the upper support assembly, and the through hole is fixed with the waist-shaped groove. The archwire is inserted into the through groove of the placement hole, and a limiting ring is fitted on both sides of the bracket. The two ends of the telescopic connecting rod are respectively hinged to the hinge blocks of the upper and lower brackets. The assembled prosthesis is worn in the patient's mouth.

[0016] The present invention has the following beneficial effects: 1. The left and right plates of the maxillary component can be adjusted in lateral distance via a merging block. The waist-shaped groove of the mounting plate and the through hole of the upper support component can be used to finely adjust the longitudinal position, which can accurately match the differences in the maxillofacial contours of different patients. The upper and lower brackets are made of medical-grade silicone rubber, which has skin-friendly properties and good fit. It can tightly wrap the outer wall of the teeth and avoid mucosal pressure. The hinged structure of the telescopic link can adapt to the opening and closing, protrusion and other movement trajectories of the jaw in real time, which solves the problem of poor movement adaptability of traditional orthodontic appliances and significantly improves the comfort and safety of long-term wear.

[0017] Second, the inclined surface abutment structure of the upper and lower occlusal blocks can physically guide the mandible to move forward naturally when the patient closes their mouth, thus inhibiting mandibular retraction and other deformities at the source. The nickel-titanium shape memory alloy archwire provides continuous and gentle corrective force, which, together with the fixing ring for the bracket assembly, ensures that the teeth move along the preset trajectory. The two mechanisms work together to achieve precise adjustment of jaw position and ensure the stability of tooth movement. Furthermore, the orthodontic plan can be dynamically optimized by changing the archwire specifications and adjusting the inclined surface angle of the occlusal blocks.

[0018] Third, by combining intraoral scanning with imaging to obtain three-dimensional data, the component structure is precisely designed using CAD software, and then manufactured using processes such as laser sintering, photopolymerization 3D printing, and ceramic static pressing. This manufacturing method not only makes the titanium alloy support component stronger and the resin component fit better, but also enables components such as single crystal alumina ceramic tray and zirconia ceramic interlocking block to achieve micron-level precision and uniform performance, significantly reducing the error rate of traditional manual manufacturing. The modular assembly design simplifies the assembly process, and with the digital solution preset, the cycle from diagnosis to wearing is significantly shortened. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the maxillary component structure of the present invention; Figure 3 This is an exploded view of the maxillary component structure of the present invention; Figure 4 This is a schematic diagram of the mandibular component structure of the present invention; Figure 5 This is a schematic diagram of the upper and lower biting blocks of the present invention; Figure 6 This is a schematic diagram of the bracket assembly structure of the present invention; Figure 7 This is a schematic diagram of the telescopic linkage connection structure of the present invention.

[0020] Legend: 1. Maxillary assembly; 2. Mandibular plate; 3. Upper bracket; 4. Upper support assembly; 5. Lower bracket; 6. Lower support rod; 7. Upper occlusal block; 8. Lower occlusal block; 9. Telescopic link; 10. Archwire; 11. Bracket assembly; 12. Limiting ring; 101. Left plate; 102. Right plate; 103. Mounting plate; 104. Merging block; 401. Upper support rod; 402. Mounting slot; 403. Through hole; 111. Tray; 112. Sealing plate; 113. Placement hole. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The invention will be further described in detail below with reference to the accompanying drawings.

[0023] 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. Example

[0024] like Figures 1 to 7 As shown in the figure, this embodiment provides an orthodontic prosthesis for maxillofacial deformities and its manufacturing method, including a maxillary component 1 and a mandibular plate 2. The lower end of the maxillary component 1 is connected to the upper surface of an upper support component 4. The maxillary component 1 is used to conform to the maxillary surface. The upper support component 4 is used for connecting the components. The mandibular plate 2 is located below the maxillary component 1 and on the side away from the maxillary component 1. The mandibular plate 2 is used to conform to the mandibular surface. The upper ends of the mandibular plate 2 are connected to the upper ends of lower support rods 6 on both sides. The side of the upper support component 4 and the lower support rod 6 away from the maxillary component 1 and the mandibular plate 2 is connected to the sidewalls of upper brackets 3 and lower brackets 5. The upper brackets 3 and lower brackets 5 are used to fit on the outer wall of the teeth. The middle of the side of the upper brackets 3 and the lower support rod 6 away from the upper support component 4 and the lower support rod 6 is connected to the outer wall of bracket assembly 11. Multiple bracket assemblies 11 are provided.

[0025] In this embodiment, the maxillary component 1, the upper support component 4, and the bracket component 11 constitute an orthodontic repair device for orofacial deformities and its manufacturing method as described in this application.

[0026] It should also be noted that the orofacial deformities mentioned in this application can include mandibular retrusion, maxillary protrusion, malocclusion with abnormal jawbone position, etc. Figure 1 In this embodiment, mandibular retraction deformity is used as an example of orofacial deformity. Of course, other types of orofacial deformities can also adopt similar structures, which will not be described in detail below.

[0027] Understandable, Figure 1 The diagram only schematically illustrates some of the components included in the orthodontic prosthesis; the actual shape, size, location, and construction of these components are not subject to change. Figure 1 Due to limitations, orthodontic appliances can also include those that are more advanced than those that are designed for use with other types of patients. Figure 1 More or fewer parts.

[0028] In this embodiment, the main structure of the orthodontic prosthesis is formed by connecting the various components. The maxillary component 1 and the mandibular plate 2 fit the upper and lower jaws respectively. The upper bracket 3 and the lower bracket 5 fix the position of the teeth. The bracket component 11 provides the installation base for subsequent orthodontic components, forming the core framework of the orthodontic prosthesis and achieving the initial positioning and support of the upper and lower jaws and teeth.

[0029] Specifically, the maxillary component 1 and mandibular plate 2 are made of medical-grade polymethyl methacrylate resin, and the upper bracket 3 and lower bracket 5 are made of medical-grade silicone rubber to fit the outer wall of the teeth.

[0030] In this embodiment, the stability of medical-grade polymethyl methacrylate resin is used to meet the jaw fitting requirements, the flexibility of medical-grade silicone rubber enables a tight fit to the outer wall of the tooth, the medical-grade polymethyl methacrylate resin ensures the structural strength and biocompatibility of the maxillary component 1 and the mandibular plate 2, and the medical-grade silicone rubber improves the fit between the upper bracket 3 and the lower bracket 5 and the tooth, reducing damage to the tooth.

[0031] Specifically, the maxillary assembly 1 includes a left plate 101 and a right plate 102. The lower surface of the upper end of the left plate 101 and the right plate 102 is provided with a merging block 104. The merging block 104 is provided with a through hole 403 in the middle. The left plate 101 and the right plate 102 are connected by the merging block 104. The lower surface of the left plate 101 and the right plate 102 is connected to the upper end of the mounting plate 103. The mounting plate 103 is provided with two parallel waist-shaped through grooves in the middle.

[0032] In a preferred embodiment, the distance between the left plate 101 and the right plate 102 is adjusted by the through hole 403 of the merging block 104. The waist-shaped through groove of the mounting plate 103 provides adjustment space for connection with the upper support component 4, thereby realizing the adjustment of the lateral distance of the maxillary component 1 to adapt to the maxillary width of different patients. The waist-shaped groove of the mounting plate 103 provides vertical fine adjustment for the connection between the maxillary component 1 and the upper support component 4. Example

[0033] An upper support component 4 is provided based on embodiment 1.

[0034] Specifically, the upper support assembly 4 includes an upper support rod 401. The upper surface of the upper support rod 401 is provided with two mounting grooves 402. The lower end of the mounting plate 103 is inserted into the through hole 403. The upper end of the upper support rod 401 on the opposite side is provided with a through hole 403. The through hole 403 is used to cooperate with the waist-shaped groove in the mounting plate 103.

[0035] In this embodiment, the mounting plate 103 is inserted into the mounting groove 402. The maxillary component 1 and the upper support component 4 are fixed and their positions are adjusted through the cooperation of the through hole 403 and the waist-shaped groove, thus completing the detachable connection between the maxillary component 1 and the upper support component 4. The distance between the two can be finely adjusted through the waist-shaped groove to improve the adaptability of the prosthesis to the jaw structure. Example

[0036] Based on embodiment 2, a bracket assembly 11 is provided.

[0037] Specifically, the bracket assembly 11 includes a tray 111, which is provided in multiple sets and is respectively connected to the outer wall of the upper bracket 3, the lower bracket 5 and the tooth by adhesive. The upper tray 111 is hinged to the lower end of the sealing plate 112, and the lower tray 111 is hinged to the upper end of the sealing plate 112. Placement holes 113 are provided on both sides of the tray 111, and a through groove is provided on one side of the placement hole 113.

[0038] With this configuration, the tray 111 is fixed in the corresponding position by adhesive, the sealing plate 112 connects the upper and lower trays 111, and the placement hole 113 and through groove are used to install the bow wire 10, providing an installation carrier for the bow wire 10.

[0039] Specifically, the tray 111 is made of single-crystal alumina ceramic, the sealing plate 112 is made of medical-grade stainless steel, and the edges of the placement hole 113 are rounded.

[0040] Among them, monocrystalline alumina ceramic ensures the strength and wear resistance of tray 111, medical stainless steel ensures the durability of sealing plate 112, and rounding treatment avoids scratching parts or oral tissues by the edge of placement hole 113. Monocrystalline alumina ceramic tray 111 extends service life, medical stainless steel sealing plate 112 ensures connection stability, and rounding treatment improves safety in use.

[0041] Specifically, the end of the upper support rod 401 near the mandibular plate 2 is connected to one side of the upper occlusal block 7, and the end of the lower support rod 6 near the maxillary assembly 1 is connected to one side of the lower occlusal block 8. The upper occlusal block 7 and the lower occlusal block 8 are inclined on opposite sides, and the inclined sides of the upper occlusal block 7 and the lower occlusal block 8 abut against each other. The upper occlusal block 7 and the lower occlusal block 8 are made of zirconia ceramic material.

[0042] In this embodiment, when the upper and lower jaws are closed, the inclined surfaces of the upper occlusal block 7 and the lower occlusal block 8 abut against each other, generating a force that guides the lower jaw forward. The forward movement of the lower jaw is guided by the abutment of the inclined surfaces, inhibiting the retraction of the lower jaw. The zirconia ceramic material ensures the wear resistance and biocompatibility of the occlusal blocks.

[0043] Specifically, the tray 111 is provided with an archwire 10 inside. The archwire 10 is arc-shaped and passes through the placement hole 113 in the tray 111. Multiple limiting rings 12 are sleeved on the archwire 10. The limiting rings 12 are distributed on both sides of the tray 111. The archwire 10 is made of nickel-titanium shape memory alloy, and the limiting rings 12 are made of medical stainless steel.

[0044] In this embodiment, the nickel-titanium shape memory alloy archwire 10 generates a continuous corrective force, which acts on the tray 111 and the teeth through the placement hole 113. The limiting ring 12 restricts the position of the tray 111 on the archwire 10. The archwire 10 provides a continuous and gentle corrective force, pushing the teeth to move along a preset trajectory. The limiting ring 12 ensures that the position of the tray 111 and the teeth is stable and avoids displacement.

[0045] Specifically, the lower end of the tray 111 connected to the side wall of the upper support 3 on both sides of the maxillary component 1 is connected to one side of the hinge block, and the upper end of the telescopic link 9 is hinged to the other side of the hinge block. The lower end of the telescopic link 9 is hinged to the upper end of the lower tray 111 near the mandibular plate 2. The telescopic link 9 is made of medical stainless steel and is used to adapt to the movement trajectory of the jaw.

[0046] In this embodiment, during jaw movement, the telescopic link 9 extends or rotates through hinges at both ends to adapt to jaw opening and closing, forward extension, and other movement trajectories. The medical-grade stainless steel material ensures the strength of the telescopic link 9, and its telescopic and rotating structure avoids interference between the orthodontic appliance and jaw movement, thus improving wearing comfort.

[0047] Specifically, three-dimensional data of the patient's maxillofacial region are obtained through intraoral scanning. Deformity parameters are determined by combining lateral cephalometric radiographs and curved tomographic films. The structure of each component is designed using CAD software, and a 3D printed model is generated. Titanium alloy support components are fabricated by laser sintering, resin components are formed by photopolymerization 3D printing, and ceramic isostatic pressing is followed by high-temperature sintering. The left plate 101 and right plate 102 are connected by bolts through a merging block 104. The mounting plate 103 is inserted into the mounting groove 402 in the upper support assembly 4, and the through hole 403 is fixed in conjunction with the waist-shaped groove. The archwire 10 is inserted into the through groove of the placement hole 113, and the limiting ring 12 is fitted on both sides of the bracket. The two ends of the telescopic connecting rod 9 are respectively hinged to the hinge blocks of the upper and lower brackets. The assembled prosthesis is worn in the patient's oral cavity.

[0048] In this embodiment, patient data is acquired and components are designed using digital technology. Different materials are manufactured using different processes, and the components are assembled step by step to form a complete prosthesis. Digital design and manufacturing improve the precision of the components, adapt to the patient's personalized maxillofacial structure, and modular assembly simplifies the process, shortens the cycle from diagnosis to wearing, and ensures that the prosthesis fits the patient's oral cavity.

[0049] In actual use, firstly, the left plate 101 and the right plate 102 are connected through the through hole 403 on the merging block 104, thereby adjusting the distance between the left plate 101 and the right plate 102 to fit the maxillary face. Then, the mounting plate 103 is inserted into the mounting slot 402 of the upper support component 4 and fixed by cooperating with the waist-shaped groove through the through hole 403, thereby adjusting the distance between the maxillary component 1 and the upper support component 4, and thus adjusting the distance between the upper bracket 3 and the maxillary face. Then, the upper bracket 3 and the lower bracket 5 are respectively glued to the side wall of the upper support rod 401 and the side wall of the lower support rod 6 in the upper support component 4. Then, the side of the bracket box 111 in the bracket assembly 11 away from the closing plate 112 is glued to the upper bracket 3, the lower bracket 5 and the tooth side wall with light-cured adhesive. Then, the closing plate 112 is rotated along the hinge with the bracket box 111, thereby opening the closing plate 112. Finally, the archwire 10 is inserted through the through slot on one side of the placement hole 113. 10 is placed in the placement hole 113, and the limiting ring 12 is placed on both sides of the tray 111. Then, the two ends of the telescopic connecting rod 9 are respectively hinged to the hinge blocks on one side of the upper and lower trays 111. The upper occlusal block 7 and the lower occlusal block 8 are respectively welded to the ends of the upper support rod 401 and the lower support rod 6. The inclined surfaces are adjusted to fully contact. The assembled prosthesis is worn in the patient's mouth. The position of the maxillary component 1 is finely adjusted through the waist groove of the mounting plate 103. The tension of the archwire 10 and the length of the telescopic connecting rod 9 are adjusted to ensure that the occlusal blocks have uniform contact and no mucosal pressure. When the mouth is open, the upper and lower trays 111 respectively drive the telescopic connecting rod 9 to stretch. After closing, the telescopic connecting rod 9 returns to its original position and tightens the tray 111. When closed, the inclined surface of the lower occlusal block 8 passes through the lower inclined surface of the upper occlusal block 7, thereby moving the mandible forward and preventing mandibular retraction. After wearing it for a period of time, the archwire 10 specification is changed according to the tooth movement, and the angle of the occlusal block inclined surface is adjusted until the preset orthodontic goal is achieved.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrective appliance for maxillofacial deformities, characterized in that: The device includes a maxillary component (1) and a mandibular plate (2). The lower end of the maxillary component (1) is connected to the upper surface of an upper support component (4). The maxillary component (1) is used to conform to the surface of the maxilla. The upper support component (4) is used for connecting the components. The mandibular plate (2) is located below the maxillary component (1) and on the side away from the maxillary component (1). The mandibular plate (2) is used to conform to the surface of the mandible. The upper ends of the mandibular plate (2) are connected to lower support rods (6) on both sides. At the upper end, the upper support assembly (4) and the lower support rod (6) are connected to the side wall of the upper bracket (3) and the lower bracket (5) on the side away from the maxillary assembly (1) and the mandibular plate (2). The upper bracket (3) and the lower bracket (5) are used to fit on the outer wall of the tooth. The upper bracket (3) and the lower support rod (6) are connected to the outer wall of the bracket assembly (11) in the middle on the side away from the upper support assembly (4) and the lower support rod (6). Multiple bracket assemblies (11) are provided.

2. The orthodontic appliance for correcting and repairing orofacial deformities according to claim 1, characterized in that: The maxillary component (1) and mandibular plate (2) are made of medical grade polymethyl methacrylate resin, and the upper bracket (3) and lower bracket (5) are made of medical grade silicone rubber to fit the outer wall of the teeth.

3. The orthodontic appliance for correcting and repairing orofacial deformities according to claim 2, characterized in that: The maxillary assembly (1) includes a left plate (101) and a right plate (102). The lower surface of the upper end of the left plate (101) and the right plate (102) is provided with a merging block (104). The merging block (104) is provided with a through hole (403) in the middle. The left plate (101) and the right plate (102) are connected by the merging block (104). The lower surface of the left plate (101) and the right plate (102) is connected to the upper end of the mounting plate (103). The mounting plate (103) is provided with two waist-shaped through grooves in parallel in the middle.

4. The orthodontic appliance for maxillofacial deformities according to claim 3, characterized in that: The upper support assembly (4) includes an upper support rod (401). The upper surface of the upper support rod (401) is provided with two mounting grooves (402). The lower end of the mounting plate (103) is inserted into the through hole (403). The upper end of the upper support rod (401) on the opposite side is provided with a through hole (403). The through hole (403) is used to connect with the waist-shaped groove in the mounting plate (103).

5. The orthodontic appliance for maxillofacial deformities according to claim 4, characterized in that: The bracket assembly (11) includes a tray (111), which is provided in multiple sets and is respectively connected to the upper bracket (3), the lower bracket (5) and the outer wall of the tooth by adhesive. The upper tray (111) is hinged to the lower end of the closing plate (112), and the lower tray (111) is hinged to the upper end of the closing plate (112). The tray (111) has placement holes (113) on both sides, and a through groove is provided on one side of the placement hole (113).

6. The orthodontic appliance for maxillofacial deformities according to claim 5, characterized in that: The tray (111) is made of single-crystal alumina ceramic, the sealing plate (112) is made of medical stainless steel, and the edges of the placement hole (113) are rounded.

7. The orthodontic appliance for maxillofacial deformities according to claim 6, characterized in that: The upper support rod (401) is connected to one side of the upper occlusal block (7) at one end near the mandibular plate (2), and the lower support rod (6) is connected to one side of the lower occlusal block (8) at one end near the maxillary assembly (1). The upper occlusal block (7) and the lower occlusal block (8) are inclined to one side, and the inclined sides of the upper occlusal block (7) and the lower occlusal block (8) abut against each other. The upper occlusal block (7) and the lower occlusal block (8) are made of zirconia ceramic material.

8. The orthodontic appliance for correcting and repairing orofacial deformities according to claim 7, characterized in that: The tray (111) is equipped with an archwire (10), which is arc-shaped and passes through the placement hole (113) in the tray (111). Multiple limiting rings (12) are fitted on the archwire (10) and the limiting rings (12) are distributed on both sides of the tray (111). The archwire (10) is made of nickel-titanium shape memory alloy and the limiting rings (12) are made of medical stainless steel.

9. The orthodontic appliance for maxillofacial deformities according to claim 8, characterized in that: The lower end of the tray (111) connected to the side wall of the upper support (3) on both sides of the maxillary component (1) is connected to one side of the hinge block, and the other side of the hinge block is hinged to the upper end of the telescopic link (9). The lower end of the telescopic link (9) is hinged to the upper end of the lower tray (111) near the mandibular plate (2). The telescopic link (9) is made of medical stainless steel and is used to adapt to the movement trajectory of the jaw.

10. A method for manufacturing an orthodontic appliance for the orofacial deformity as described in any one of claims 1-9, characterized in that: Three-dimensional data of the patient's maxillofacial region were obtained by intraoral scanning. Deformity parameters were determined by combining lateral cephalometric radiographs and curved tomographic radiographs. The structure of each component was designed using CAD software, and a 3D printed model was generated. Titanium alloy support components were made by laser sintering, and resin components were formed by photopolymerization 3D printing. Ceramic components were formed by isostatic pressing and then sintered at high temperature. The left plate (101) and the right plate (102) were connected by bolts through the merging block (104). The mounting plate (103) was inserted into the mounting groove (402) in the upper support component (4). The through hole (403) was fixed in conjunction with the waist-shaped groove. The archwire (10) was inserted into the through groove of the placement hole (113). The limiting ring (12) was fitted on both sides of the bracket. The two ends of the telescopic connecting rod (9) were respectively hinged to the hinge blocks of the upper and lower brackets. The assembled prosthesis was worn in the patient's oral cavity.

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