Maxillary expansion brace and processing method thereof

Abstract

The present application provides a maxillary arch expansion brace and a processing method, which belongs to the field of dental correction technology. Among them, the maxillary arch expansion brace includes a brace body and a hard palate support part. A receiving groove is formed inside the brace body, and the brace body is configured to be sleeved on the surface of the crown of the maxillary teeth along a preset direction so that the maxillary teeth can be accommodated in the receiving groove. The hard palate support part is connected to the brace body. After the brace body is sleeved on the surface of the crown of the maxillary teeth along a preset direction, the hard palate support part can be supported on the hard palate. When the brace body is sleeved on the surface of the crown of the maxillary teeth, the support part will be supported on the hard palate, so that the brace body acts on the teeth, and the support part acts on the hard palate, and the entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate, so as to fully expand the mid-palate suture and achieve a good arch expansion effect.

Description

Technical Field

[0001] The present application relates to the technical field of dental correction, and in particular to a maxillary arch expansion brace and a processing method thereof. Background Art

[0002] At present, when correcting the insufficient width of the maxillary dental arch (narrow dental arch), a maxillary expander is generally used, that is, the maxillary expander is fixed on the molars and premolars, and the maxillary teeth and maxillary bones are expanded to both sides through mechanical force to widen the maxillary palatal suture, so as to achieve the purpose of correcting the narrow maxillary dental arch. Since the maxillary expander only acts on the teeth, it cannot fully expand the mid-palatal suture. Summary of the invention

[0003] The embodiments of the present application provide a maxillary expansion brace and a processing method to improve the problem that the maxillary expander cannot fully expand the mid-palatal suture.

[0004] In a first aspect, an embodiment of the present application provides a maxillary arch expansion brace, comprising a brace body and a hard palate support portion;

[0005] A receiving groove is formed inside the brace body, and the brace body is configured to be sleeved on the surface of the crown of the maxillary tooth along a preset direction so that the maxillary tooth is received in the receiving groove;

[0006] The hard palate supporting portion is connected to the brace body;

[0007] After the brace body is sleeved on the crown surface of the maxillary tooth along the preset direction, the hard palate supporting part can be supported on the hard palate.

[0008] In the above technical solution, a hard palate supporting part for supporting the hard palate is connected to the brace body. When the brace body is mounted on the crown surface of the maxillary teeth, the supporting part will be supported on the hard palate, so that the brace body acts on the teeth and the supporting part acts on the hard palate. The entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate to fully expand the mid-palate suture, achieving a good arch expansion effect.

[0009] In addition, the maxillary expansion braces of the embodiment of the present application also have the following additional technical features:

[0010] In some embodiments of the present application, the brace body includes a plurality of crown sleeves arranged together into a first U-shaped structure, a crown groove is formed in each crown sleeve, and the crown grooves are connected to form the receiving groove.

[0011] In the above technical solution, the brace body includes a plurality of crown sleeves arranged together into a first U-shaped structure. The U-shaped structure of the brace body matches the overall U-shaped structure of the maxillary teeth. After the brace body is sleeved on the crown surface of the maxillary teeth, one crown sleeve corresponds to one tooth; one tooth is located in one crown groove, and one crown sleeve can generate expansion force on the corresponding tooth.

[0012] In some embodiments of the present application, the brace body has an inner portion located on the inner side of the first U-shaped structure and an outer portion located on the outer side of the first U-shaped structure, the inner surface wall of the inner portion and the inner surface wall of the outer portion jointly define the accommodating groove, and the hard palate supporting portion is connected to the inner portion.

[0013] In the above technical solution, the brace body has an outer part and an inner part, and the inner surface wall of the inner part and the inner surface wall of the outer part jointly define a containing groove. After the brace body is sleeved on the outer side of the maxillary teeth, the inner surface wall of the inner part contacts the inner surface of the teeth, and the inner surface wall of the outer part contacts the outer surface of the teeth. The hard palate supporting part is connected to the inner part of the brace body, and the hard palate supporting part is subjected to the force from the hard palate and will transmit it to the outer part, so that the outer part produces an expansion force on the teeth.

[0014] In some embodiments of the present application, the inner portion defines a U-shaped space, and the hard palate supporting portion is recessed along the preset direction within the U-shaped space so that the shape of the supporting portion matches the shape of the hard palate.

[0015] In the above technical solution, the hard palate support part is recessed in a preset direction in the U-shaped space so that the shape of the support part matches the shape of the hard palate. After the brace body is sleeved on the surface of the crown of the maxillary teeth, the support part and the hard palate have a large contact area, which can generate sufficient expansion force on the one hand and improve the comfort of the user on the other hand. In addition, the above support part has a simple structure, which is convenient for patients to clean their mouths.

[0016] In some embodiments of the present application, the inner portion includes a first connecting portion corresponding to the left molar among the maxillary teeth, a second connecting portion corresponding to the incisor and canine among the maxillary teeth, and a third connecting portion corresponding to the right molar among the maxillary teeth;

[0017] The first connection portion, the second connection portion and the third connection portion are sequentially connected to form a second U-shaped portion, and the first connection portion, the second connection portion and the third connection portion are all connected to the hard palate supporting portion.

[0018] In the above technical solution, the hard palate supporting part is simultaneously connected to the first connecting part, the second connecting part and the third connecting part. After the hard palate supporting part is supported by the hard palate, the force acting on the supporting part from the hard palate will be transmitted to the first connecting part, the second connecting part and the third connecting part located on three sides, so that the braces body can evenly expand the maxillary teeth.

[0019] In some embodiments of the present application, the brace body and the hard palate supporting portion are an integrally formed structure.

[0020] In the above technical solution, the braces body and the hard palate supporting part are an integrally formed structure, so that the entire braces has good structural stability and is not easily damaged.

[0021] In some embodiments of the present application, the brace body and / or the hard palate supporting portion are made of transparent material.

[0022] In the above technical solution, the braces body is made of transparent material to make the braces body invisible; the hard palate supporting part is made of transparent material to make the hard palate supporting part invisible.

[0023] In some embodiments of the present application, the brace body and / or the hard palate supporting portion are made of elastic material.

[0024] In the above technical solution, the braces body is made of elastic material, so that the braces body has excellent deformation and recovery capabilities, so that the braces body can be easily mounted on the crown surface of the maxillary teeth, and the braces body is elastically deformed when it is mounted on the crown surface of the maxillary teeth to generate expansion force on the teeth; the hard palate support part is made of elastic material, so that the hard palate support part has excellent deformation and recovery capabilities. After the hard palate support part is supported on the hard palate, the hard palate support part will undergo elastic deformation, and the hard palate support part has a tendency to recover deformation to generate expansion force on the hard palate.

[0025] In a second aspect, an embodiment of the present application provides a method for processing a maxillary expansion brace, comprising the following steps:

[0026] Modeling: Establish a three-dimensional model of the maxillary teeth and maxillary palate based on the patient's maxillary teeth and maxillary palate;

[0027] Correcting the model: Correcting the three-dimensional model to adjust the teeth in the three-dimensional model step by step to the final position that the patient's teeth need to reach, so as to obtain a step-by-step model for each step;

[0028] Generate physical model: Make physical model of maxillary teeth and maxillary palate according to step-by-step model;

[0029] Molding: A maxillary expansion brace is formed on the outside of the physical model of the maxillary teeth and the maxillary palate using a sheet-like member, so that the brace has a brace body for being sleeved on the outside of the maxillary teeth and a hard palate supporting portion connected to the brace body for supporting the hard palate.

[0030] The maxillary expansion brace obtained by the above method comprises a brace body for being mounted on the outside of the maxillary teeth and a hard palate supporting part connected to the brace body for supporting the hard palate. The entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate to fully expand the mid-palate suture, achieving a good expansion effect.

[0031] In some embodiments of the present application, in the molding step, the maxillary expansion braces are formed on the outside of the physical model of the maxillary teeth and the maxillary palate using the sheet-like member by a hot pressing molding method.

[0032] In the above technical solution, the sheet-like member is formed into a maxillary arch expansion brace by a hot pressing method, and the forming method is simple and fast. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the structure of the maxillary arch expansion braces provided in an embodiment of the present application at a first viewing angle;

[0035] Figure 2 A schematic diagram of the structure of the maxillary arch expansion braces provided in an embodiment of the present application at a second viewing angle;

[0036] Figure 3 A schematic diagram of the structure of maxillary teeth provided in an embodiment of the present application;

[0037] Figure 4 for Figure 2 The IV view is shown;

[0038] Figure 5 A flow chart of a method for processing maxillary arch expansion braces provided in an embodiment of the present application.

[0039] Icons: 100- maxillary expansion braces; 10- brace body; 11- receiving groove; 12- crown sleeve; 13- crown groove; 14- lateral part; 15- medial part; 151- first connecting part; 152- second connecting part; 153- third connecting part; 154- U-shaped space; 20- hard palate support part; 200- maxillary teeth; 210- central incisor; 220- lateral incisor; 230- canine; 240- left molar; 250- right molar; 260- midpalatal suture; A- preset direction. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0041] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the embodiments of the present application, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0045] In the description of the embodiments of the present application, it is also necessary to explain that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0046] Example 1

[0047] like Figure 1 , Figure 2 As shown, the embodiment of the present application provides a maxillary expansion brace 100, comprising a brace body 10 and a hard palate support portion 20. A receiving groove 11 is formed inside the brace body 10, and the brace body 10 is configured to be arranged along a preset direction A ( Figure 1 , Figure 2 The hard palate support part 20 is connected to the brace body 10. After the brace body 10 is sleeved on the outer side of the maxillary teeth 200 along the preset direction A, the hard palate support part 20 can be supported on the hard palate.

[0048] A hard palate supporting portion 20 for supporting the hard palate is connected to the brace body 10. When the brace body 10 is sleeved on the outside of the maxillary teeth 200 along the preset direction A, that is, the maxillary teeth 200 are located in the accommodating groove 11 of the brace body 10, the supporting portion will be supported on the hard palate, so that the brace body 10 acts on the teeth and the supporting portion acts on the hard palate, that is, the entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate, so as to fully expand the mid-palate suture 260, and the expansion effect is good.

[0049] It should be noted that the preset direction A is the direction of the slot opening of the receiving slot 11 .

[0050] For ease of understanding, combined Figure 3 The structure of the maxillary tooth 200 is described by taking an example.

[0051] like Figure 3 As shown, the maxillary teeth 200 include incisors, canines 230, central incisors 210, left molars 240 located on the left side of the palatal suture 260, and right molars 250 located on the right side of the palatal suture 260, and the incisors and canines 230 are located at the front side. Among them, the incisors include two central incisors 210 and two lateral incisors 220, the two central incisors 210 are located on both sides of the palatal suture 260, and the two lateral incisors 220 are located on both sides of the palatal suture 260; there are two canines 230, and the two canines 230 are located on both sides of the palatal suture 260; there are four left molars 240 and four right molars 250. Among them, the four left molars 240 include two premolars and two molars; the four right molars 250 include two premolars and two molars.

[0052] The brace body 10 and the hard palate supporting part 20 can be made of a variety of materials, and the materials of the brace body 10 and the hard palate supporting part 20 can be the same or different.

[0053] In this embodiment, the brace body 10 and the hard palate supporting portion 20 are both made of elastic transparent materials, such as polypropylene and polytetrafluoroethylene.

[0054] The brace body 10 is made of transparent material, so that the brace body 10 has a good invisible effect; the hard palate support part 20 is made of transparent material, so that the hard palate support part 20 has a good invisible effect. After the whole brace is worn, it can achieve the purpose of being invisible and has a good aesthetic appearance.

[0055] The brace body 10 is made of elastic material, so that the brace body 10 has excellent deformation and recovery capabilities, so that the brace body 10 can be easily mounted on the outside of the maxillary teeth 200, and the brace body 10 is elastically deformed when it is mounted on the outside of the maxillary teeth 200 to generate expansion force on the teeth; the hard palate support part 20 is made of elastic material, so that the hard palate support part 20 has excellent deformation and recovery capabilities. After the hard palate support part 20 is supported on the hard palate, the hard palate support part 20 will undergo elastic deformation, and the hard palate support part 20 has a tendency to recover deformation to generate expansion force on the hard palate.

[0056] In other specific embodiments, the materials of the brace body 10 and the hard palate support part 20 may also be different. For example, the brace body 10 is made of a transparent material, while the hard palate support part 20 is made of a non-transparent material, or the brace body 10 is made of a non-transparent material, while the hard palate support part 20 is made of a transparent material; for another example, the brace body 10 is made of an elastic material, while the hard palate support part 20 is made of a non-elastic material, or the brace body 10 is made of a non-elastic material, while the hard palate support part 20 is made of an elastic material.

[0057] The function of the mouthpiece body 10 is to be mounted on the outer side of the maxillary teeth 200 and to generate an expansion force on the maxillary teeth 200. The mouthpiece body 10 can be of various structures. Figure 2 As shown, in this embodiment, the dental crown body 10 includes a plurality of dental crown sleeves 12 arranged together into a first U-shaped structure, a dental crown groove 13 is formed in each dental crown sleeve 12, and the dental crown grooves 13 are connected to form a receiving groove 11.

[0058] The brace body 10 includes a plurality of crown sleeves 12 arranged together into a first U-shaped structure. The U-shaped structure of the brace body 10 matches the overall U-shaped structure of the maxillary teeth 200. After the brace body 10 is sleeved on the outer side of the maxillary teeth 200, one crown sleeve 12 corresponds to one tooth; one tooth is located in one crown groove 13, and one crown sleeve 12 can generate an expansion force on the corresponding tooth.

[0059] Furthermore, the braces body 10 has an inner portion 15 located on the inner side of the first U-shaped structure and an outer portion 14 located on the outer side of the first U-shaped structure, the inner surface wall of the inner portion 15 and the inner surface wall of the outer portion 14 jointly define the accommodating groove 11, and the hard palate support portion 20 is connected to the inner portion 15.

[0060] The brace body 10 has an outer portion 14 and an inner portion 15. The inner surface wall of the inner portion 15 and the inner surface wall of the outer portion 14 jointly define a groove. After the brace body 10 is sleeved on the outer side of the maxillary teeth 200, the inner surface wall of the inner portion 15 contacts the inner surface of the teeth, and the inner surface wall of the outer portion 14 contacts the outer surface of the teeth. The hard palate supporting portion 20 is connected to the inner portion 15 of the brace body 10. The hard palate supporting portion 20 receives the force from the hard palate and transmits it to the outer portion 14, so that the outer portion 14 generates an expansion force on the teeth.

[0061] The function of the hard palate support part 20 is to support the hard palate and generate an expansion force on the bones corresponding to the hard palate. The hard palate support part 20 can be a variety of structures as long as it can support the hard palate and generate an expansion force on the bones corresponding to the hard palate.

[0062] like Figure 2 , Figure 4 As shown, in this embodiment, the inner portion 15 defines a U-shaped space 154, and the hard palate supporting portion 20 is recessed along a preset direction A in the U-shaped space 154 so that the shape of the supporting portion matches the shape of the hard palate.

[0063] The hard palate support part 20 is recessed in the U-shaped space along the preset direction A so that the shape of the support part matches the shape of the hard palate. After the brace body 10 is sleeved on the outer side of the maxillary teeth 200, the support part and the hard palate have a large contact area, which can generate sufficient expansion force on the one hand and improve the comfort of the user on the other hand. In addition, the above-mentioned support part has a simple structure, which is convenient for patients to clean their mouths.

[0064] Further, the medial portion 15 includes a first connecting portion 151 corresponding to the left molar 240 in the maxillary teeth 200, a second connecting portion 152 corresponding to the incisor and canine 230 in the maxillary teeth 200, and a third connecting portion 153 corresponding to the right molar 250 in the maxillary teeth 200. The first connecting portion 151, the second connecting portion 152, and the third connecting portion 153 are sequentially connected to form a second U-shaped portion, and the first connecting portion 151, the second connecting portion 152, and the third connecting portion 153 are all connected to the hard palate supporting portion 20.

[0065] The hard palate supporting part 20 is simultaneously connected to the first connecting part 151, the second connecting part 152 and the third connecting part 153. After the hard palate supporting part 20 is supported on the hard palate, the force applied by the hard palate to the supporting part will be transmitted to the first connecting part 151, the second connecting part 152 and the third connecting part 153 located on three sides, so that the brace body 10 can evenly expand the maxillary teeth 200.

[0066] Of course, the connection form between the hard palate support part 20 and the inner part 15 can also be other forms. For example, the hard palate support part 20 is only connected to one or two of the first connection part 151, the second connection part 152 and the third connection part 153 at the same time.

[0067] Furthermore, in this embodiment, the brace body 10 and the hard palate support part 20 are an integrally formed structure, so that the entire brace has good structural stability and is not easily damaged. In other specific embodiments, the brace body 10 and the hard palate support part 20 can also be connected in other forms, for example, the brace body 10 and the hard palate support part 20 are split structures, and the two are connected together by bonding after production.

[0068] In addition, if Figure 5 As shown, the embodiment of the present application also provides a method for processing a maxillary arch expansion brace, comprising the following steps:

[0069] Modeling: Establish a three-dimensional model of the maxillary teeth and maxillary palate based on the patient's maxillary teeth and maxillary palate;

[0070] In this embodiment, the patient's maxillary teeth and maxillary palate are scanned by a 3D scanner to obtain a 3D model of the maxillary teeth and maxillary palate. The 3D model of the maxillary teeth and maxillary palate obtained by the 3D scanner has high accuracy. Of course, in other specific embodiments, the 3D model of the patient's maxillary teeth and maxillary palate can also be obtained by other means, for example, first obtaining a common impression, making a plaster model, and then scanning the plaster model to obtain the 3D model of the patient's maxillary teeth and maxillary palate, or first taking an oral cavity negative mold, and then scanning the negative mold and calculating to obtain the 3D model of the patient's maxillary teeth and maxillary palate.

[0071] Correcting the model: Correcting the three-dimensional model to adjust the teeth in the three-dimensional model step by step to the final position that the patient's teeth need to reach, so as to obtain a step-by-step model for each step;

[0072] In this embodiment, the three-dimensional model of the maxillary teeth and maxillary palate is corrected by a computer, and the position and angle of the teeth are corrected according to the deformity of the teeth, so as to adjust the teeth in the three-dimensional model of the maxillary teeth and maxillary palate to the position that the patient's teeth need to reach in each stage, so as to obtain a step-by-step model for each stage.

[0073] Generate physical model: Make physical model of maxillary teeth and maxillary palate according to step-by-step model;

[0074] In this embodiment, the step-by-step model is imported into a 3D printer, and a physical model of the maxillary teeth and the maxillary palate is printed out by the 3D printer.

[0075] Molding: A maxillary expansion brace 100 is formed on the outside of the physical model of the maxillary teeth and the maxillary palate using a sheet-like member, so that the brace has a brace body 10 for being sleeved on the outside of the maxillary teeth and a hard palate supporting portion 20 connected to the brace body 10 for supporting the hard palate.

[0076] In this embodiment, a diaphragm (sheet-like member) made of a thermoplastic material (polypropylene, polytetrafluoroethylene, etc.) is used to form the maxillary arch expansion brace 100 on the outside of the physical model of the maxillary teeth and the maxillary palate by a hot pressing method. In this step, the device used is a laminator. In other specific embodiments, the sheet-like member can also be formed on the outside of the physical model of the maxillary teeth and the maxillary palate by a vacuum adsorption method.

[0077] The maxillary expansion brace 100 obtained by the above method comprises a brace body 10 for being mounted on the outside of the maxillary teeth and a hard palate supporting portion 20 connected to the brace body 10 for supporting the hard palate. The entire brace can simultaneously apply expansion force to the bones corresponding to the teeth and the hard palate to fully expand the mid-palatal suture, achieving a good expansion effect.

[0078] In the actual processing, if the sheet is relatively large, after molding, the brace body 10 and the hard palate support part 20 in the maxillary expansion brace 100 have redundant parts. In this case, after the molding step, the redundant parts of the brace body 10 and the hard palate support part 20 can be sheared off. The specific shearing method can be laser shearing or manual shearing.

[0079] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A maxillary expansion brace, characterized in that: include: A brace body, wherein a receiving groove is formed inside the brace body, and the brace body is configured to be sleeved on the surface of the crown of the maxillary tooth along a preset direction so that the maxillary tooth can be accommodated in the receiving groove; the brace body includes a plurality of crown sleeves arranged together into a first U-shaped structure, a crown groove is formed in each crown sleeve, and the crown grooves are connected to form the receiving groove; the brace body has an inner side portion located inside the first U-shaped structure and an outer side portion located outside the first U-shaped structure, and the inner surface wall of the inner side portion and the inner surface wall of the outer side portion jointly define the receiving groove; the inner side portion includes a first connecting portion corresponding to the left molar among the maxillary teeth, a second connecting portion corresponding to the incisor and canine among the maxillary teeth, and a third connecting portion corresponding to the right molar among the maxillary teeth; the first connecting portion, the second connecting portion and the third connecting portion are sequentially connected to form a second U-shaped portion; and A hard palate support portion, the hard palate support portion is connected to the inner portion, the brace body and the hard palate support portion are an integrally formed structure, the brace body and the hard palate support portion are both made of transparent and elastic materials, the inner portion defines a U-shaped space, the hard palate support portion is recessed in the U-shaped space along the preset direction so that the shape of the hard palate support portion matches the shape of the hard palate, and the first connecting portion, the second connecting portion and the third connecting portion are all connected to the hard palate support portion; After the brace body is sleeved on the crown surface of the maxillary tooth along the preset direction, the hard palate supporting part can be supported on the hard palate.

2. A method for processing a maxillary arch expansion brace, used for the maxillary arch expansion brace according to claim 1, characterized in that: The following steps are involved: Modeling: Establish a three-dimensional model of the maxillary teeth and maxillary palate based on the patient's maxillary teeth and maxillary palate; Correcting the model: Correcting the three-dimensional model to adjust the teeth in the three-dimensional model step by step to the final position that the patient's teeth need to reach, so as to obtain a step-by-step model for each step; Generate physical model: Make physical model of maxillary teeth and maxillary palate according to step-by-step model; Molding: A maxillary expansion brace is formed on the outside of the physical model of the maxillary teeth and the maxillary palate using a sheet-like member, so that the brace has a brace body for being sleeved on the outside of the maxillary teeth and a hard palate supporting portion connected to the brace body for supporting the hard palate.

3. The method for processing a maxillary expansion brace according to claim 2, characterized in that: In the molding step, the maxillary expansion braces are formed on the outer side of the physical model of the maxillary teeth and the maxillary palate by using the sheet-like member through a hot pressing molding method.

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