WO2021043129A1 - Appareil orthodontique transparent - Google Patents

Appareil orthodontique transparent Download PDF

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Publication number
WO2021043129A1
WO2021043129A1 PCT/CN2020/112841 CN2020112841W WO2021043129A1 WO 2021043129 A1 WO2021043129 A1 WO 2021043129A1 CN 2020112841 W CN2020112841 W CN 2020112841W WO 2021043129 A1 WO2021043129 A1 WO 2021043129A1
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WO
WIPO (PCT)
Prior art keywords
brace
braces
transparent
reinforcing member
thickness
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PCT/CN2020/112841
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English (en)
Chinese (zh)
Inventor
杨幽幽
Original Assignee
杨幽幽
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Publication date
Application filed by 杨幽幽 filed Critical 杨幽幽
Publication of WO2021043129A1 publication Critical patent/WO2021043129A1/fr

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch

Definitions

  • the present invention relates to the field of transparent braces, and more specifically, to a transparent orthodontic braces and a computer-aided manufacturing method thereof.
  • the existing transparent braces are braces with uniform thickness or rigidity.
  • Each transparent braces can correct the movement range of the teeth within 0.25 ⁇ 0.3
  • this range is not the limit range of the physiological movement of the teeth.
  • the factors that limit this range are the material of the transparent braces and the way of treatment through the transparent braces. Due to the limited elasticity of transparent braces, the material will be strained or deformed during the treatment. Therefore, even if transparent braces with different softness and hardness are used in different stages of treatment, they may not be able to give the teeth enough correction strength, because transparent braces are uniform
  • the thickness or rigidity of the braces is too single in the correction.
  • the present invention aims to overcome at least one of the above-mentioned defects of the prior art, and provides a transparent correction and a computer-aided manufacturing method thereof, which is used to solve the problem of insufficient correction strength of the existing transparent braces, prone to strain and deformation, and too single function The problem.
  • a transparent orthodontic brace comprising an outer surface, an inner surface, and a thickness formed between the inner and outer surfaces.
  • the thickness is unevenly distributed at different positions of the brace. /Or the thickness of the location where the attachment is added is greater than the thickness of the location where the attachment is generally stressed, less stressed, not stressed, and/or only used for connection.
  • the role of this part of the braces is to connect to other parts of the braces, and/or to be used for orthodontics that require general force correction , Teeth that do not require force correction and/or force correction; where the braces are stressed, strengthened, wear-resistant, and/or additional accessories are added, the role of this part of the braces is that the correction requires more than normal force To correct the teeth, and/or increase the strength and/or wear resistance of the part so that the braces are not prone to material strain and deformation, and/or additional accessories can be added to correct the teeth in different ways; therefore, in the braces The thickness is unevenly distributed at different positions, and the thickness of the force, reinforcement, wear resistance and/or additional accessories of the brace is greater than the general force, less force, no force and/or only connecting The thickness of the position is conducive to the realization of different functions of the braces in different positions, and the functions are more diversified.
  • one or more accessories may be embedded between the outer surface and the inner surface. Inserting accessories on the outer surface and inner surface of the braces can diversify the functions of the braces through different types of accessories.
  • the accessory part passes through the outer surface, and can protrude outside the outer surface or pierce the outer surface.
  • the embedding methods can be divided into full embedding and partial embedding in the braces.
  • the accessory is one or more of orthodontic wires, metal wires, metal strips, hooks and/or male and female buckles.
  • the thickness of this part of the brace can be strengthened to correct teeth that require more than normal force correction, and/or strengthen the strength and/or resistance of this part of the brace.
  • the degree of wear makes the braces less prone to material strain and deformation; by inserting one or more of the hooks and/or male and female buckles, it can work with rubber bands or other accessories to correct the position of the teeth and/or the malocclusion of the teeth The problem.
  • the mouthpiece is provided with small holes, and the male and female buckle can be directly installed on the mouthpiece through the small holes.
  • Small holes are provided on the braces, and the male and female buckles of the male and female buckles do not need to be embedded, and are directly fixed on the braces through the small holes, so as to correct the position of the teeth and/or the problem of tooth malocclusion.
  • the transparent orthodontic brace further includes a reinforcing member disposed on the inner surface of the brace.
  • the reinforcing component is used to further increase the thickness of the transparent brace, so that the thickness of the part where the brace is provided with the reinforcing component is greater, and the reinforcing component can be added to the inner surface of the brace as needed during the treatment process.
  • one or more accessories may be embedded between the inner surface and the reinforcing member.
  • the attachment is embedded on the basis of the reinforcing part, and the brace is less prone to material strain and deformation due to the interaction between the attachment and the brace.
  • the accessory part penetrates the inner surface and the outer surface, protrudes outside the outer surface or pierces the outer surface.
  • the accessory is one or more of orthodontic wires, metal wires, metal strips, hooks and/or male and female buckles.
  • the reinforcing member and the brace region where the reinforcing member is provided are provided with the same small hole, and the male and female buckle can be directly installed on the brace through the small hole.
  • the fixed male and female buckles are installed on the basis of the reinforcing parts, and the braces are less prone to material strain and deformation due to the interaction between the male and female buckles and the braces.
  • a transparent orthodontic brace includes an outer surface, an inner surface, and a thickness formed between the inner and outer surfaces, the thickness is uniformly distributed at different positions of the brace, and also includes a reinforcing member disposed on the brace The degree of stress, reinforcement, wear resistance and/or location of additional accessories.
  • the role of this part of the braces is to correct the teeth that require more than normal force correction, and/or increase the strength of the part and/or
  • the degree of abrasion resistance makes the braces less prone to material strain and deformation, and/or additional accessories can be added to correct the teeth in different ways;
  • the thickness of the transparent braces is evenly distributed in different positions, so by providing reinforcing parts on the braces, The thickness of this part of the brace is larger than that of other positions where no strengthening part is provided, which is beneficial for the brace to achieve different functions in different positions and has more diversified functions.
  • one or more accessories are embedded between the inner surface and the reinforcing member.
  • the accessory part penetrates the inner surface and the outer surface, protrudes outside the outer surface or pierces the outer surface.
  • the accessory is one or more of orthodontic wires, metal wires, metal strips, hooks and/or male and female buckles.
  • the reinforcing member and the brace region where the reinforcing member is provided are provided with the same small hole, and the male and female buckle can be directly installed on the brace through the small hole.
  • a transparent orthodontic brace comprising an outer surface and an inner surface, the stiffness of the brace is unevenly distributed at different positions of the brace, the force, reinforcement, wear resistance of the brace, and/or the rigidity of the position where the attachment is added Greater than the rigidity of the position that is generally stressed, less stressed, unstressed, and/or only acting as a connection.
  • a transparent orthodontic brace includes an outer surface and an inner surface. The stiffness of the brace is evenly distributed at different positions of the brace. It also includes a reinforcing member that is arranged on the strength, strength, and resistance of the brace. The location of the grinding and/or additional attachments.
  • S1 Scan the patient’s mouth to generate a three-dimensional model
  • S3 Formulate a step-by-step adjustment plan according to the target position described in S2, and output a three-dimensional model of the tooth model of each plan;
  • S5 The transparent braces are made according to the three-dimensional model completed in S4.
  • each transparent brace can be designed on the three-dimensional model, and the positions that need to be stressed, strengthened, wear-resistant and/or additional accessories can be designed After designing the transparent braces that the patient needs to wear at each adjustment stage, a three-dimensional model of each transparent brace is generated.
  • each transparent brace can be produced by 3D printing or injection molding or other methods.
  • a part of the transparent braces includes an outer surface, an inner surface, and a rigidity or thickness formed between the inner and outer surfaces, and the rigidity or thickness is unevenly distributed at different positions of the braces ,
  • the part of the transparent braces where the force, reinforcement, wear resistance and/or the rigidity or thickness of the position where the accessory is added is greater than the rigidity or the rigidity or the thickness of the position where the general force, less force, no force, and/or only the connection function thickness.
  • a part of the transparent braces where it needs to be stressed, strengthened, wear-resistant, and/or additional accessories will appear rigid or thicker than braces that are generally stressed, less stressed, less stressed and/ Or the rigidity or thickness of the connecting position is greater, because the role of this part of the brace in the position that needs to be stressed, strengthened, wear-resistant and/or additional accessories is that the correction needs more than the general force correction.
  • the position of less force, no force, and/or only the connection function plays the role of connecting other parts of the brace, and/or for the correction requires general force correction, less force correction and/ Or teeth that do not require force correction, so the rigidity or thickness of this part of the braces is unevenly distributed, which is conducive to the realization of different functions of the braces in different positions and more diversified functions.
  • another part of the transparent braces includes an outer surface, an inner surface, and a rigidity or thickness formed between the inner and outer surfaces, and the rigidity or thickness is uniformly distributed at different positions of the braces,
  • the other part of the transparent braces further includes a reinforcing component, which is arranged at the position where the braces are subjected to force, reinforcement, wear resistance, and/or additional accessories.
  • this other part of the transparent braces plays a role in the position that needs to be stressed, strengthened, wear-resistant and/or additional accessories is to be used to correct the teeth that require more than normal force correction, and/or increase the strength of the force and/or the part
  • the degree of abrasion resistance makes the braces less prone to material strain and deformation, and/or additional accessories can be added to correct the teeth in different ways, and they are generally stressed, less stressed, not stressed and/or only lifted.
  • connection position The role of the connection position is to connect other parts of the braces, and/or to correct teeth that require general force correction, less force correction, and/or no force correction, so in the S4 Steps:
  • a reinforcing member When designing this other part of the transparent brace, it is necessary to install a reinforcing member at the position of the force, reinforcement, wear resistance and/or additional accessories, which makes the part of the brace more rigid or thicker than other positions where no reinforcing member is provided , It is helpful for the braces to achieve different functions in different positions, and the functions are more diversified.
  • the present invention has the following beneficial effects: through the different thickness or rigidity of the transparent braces and the additional components and/or accessories on the braces, the functions of the transparent braces are more diversified, and at the same time, it is not prone to deformation and material. Strain situation.
  • Figure 1 is a structural diagram of the transparent braces in Example 1.
  • Fig. 2 is a structural diagram of a transparent braces provided with metal hooks and reinforcing members in the first embodiment.
  • Figure 3 is a structural diagram of the four types of accessories in Example 1.
  • Example 4 is a structural diagram of the transparent braces in Example 2.
  • Fig. 5 is a structural diagram of a transparent braces with male and female buckles in embodiment 2.
  • Fig. 6 is a schematic diagram of the installation method of the male and female buckle in embodiment 2.
  • Fig. 7 is a structural diagram of a transparent braces provided with metal hooks and reinforcing members in the third embodiment.
  • Fig. 8 is a structural diagram of a transparent brace provided with a reinforcing member in the fourth embodiment.
  • Fig. 9 is a structural diagram of a transparent braces with male and female buckles and reinforcing members in the fourth embodiment.
  • Fig. 10 is a schematic diagram of the installation method of the male and female buckle in embodiment 4.
  • Fig. 11 is a structural diagram of a transparent brace provided with a reinforcing member in the fifth embodiment.
  • Fig. 12 is a perspective view of the reinforcing member in the fifth embodiment.
  • Fig. 13 is a structural diagram of a transparent braces provided with reinforcing parts and metal strips in embodiment 5.
  • Fig. 14 is a structural diagram of a transparent brace provided with a reinforcing member in the sixth embodiment.
  • Fig. 15 is a schematic diagram of the transparent braces for correcting teeth in Example 6.
  • Fig. 16 is a schematic diagram of the transparent braces for correcting teeth in Example 6.
  • Fig. 17 is a structural diagram of a transparent braces with a jaw expander and a reinforcing member in the seventh embodiment.
  • Figure 18 is a perspective view of the jaw expander in the seventh embodiment.
  • Example 19 is a structural diagram of the transparent braces in Example 8.
  • Fig. 20 is a structural diagram of a transparent brace provided with a reinforcing member in the eighth embodiment.
  • Fig. 21 is a perspective view of the reinforcing member in the eighth embodiment.
  • Fig. 22 is a structural diagram of a transparent brace provided with a reinforcing member in the ninth embodiment.
  • Fig. 23 is a perspective view of the reinforcing member in the ninth embodiment.
  • Fig. 24 is a schematic diagram of the transparent braces for correcting teeth in Example 9.
  • FIG. 25 is a schematic diagram of the transparent braces for correcting teeth in Example 9.
  • FIG. 25 is a schematic diagram of the transparent braces for correcting teeth in Example 9.
  • Fig. 26 is a structural diagram of a transparent braces in embodiment 10.
  • Fig. 27 is a flowchart of computer-aided production of transparent braces in Example 11.
  • this embodiment is a transparent orthodontic brace.
  • the brace includes an outer surface 1 and an inner surface 2 and a thickness formed between the inner and outer surfaces.
  • the thickness varies in different positions of the brace. Evenly distributed, the thickness of the braces area A and the braces area B is larger than the other areas of the braces, the area A and the area B are the position of the braces, strengthening, wear resistance and/or additional accessories, and the other areas are normal for the braces A position that is stressed, less stressed, unstressed, and/or only acting as a connection.
  • the brace further includes a reinforcing member 3, and the reinforcing part 3 is provided on the area A of the inner surface 2 of the brace.
  • the reinforcing member can be used at any time during treatment.
  • the time point is added on the inner surface of the brace, can be of any shape and/or thickness, and can be set at any position on the inner surface of the brace.
  • a metal hook 4 can be embedded in the area B between the outer surface 1 and the inner surface 2, and the metal hook 4 can work with rubber bands or other accessories to correct teeth. The position and/or malocclusion of the teeth.
  • the hook part 5 of the metal hook 4 penetrates the inner surface 2 and the outer surface 1 of the braces, and protrudes outside the outer surface 1.
  • the metal hook can have four or more structures.
  • this embodiment is a way of attaching an accessory to a transparent orthodontic brace.
  • the brace includes an outer surface 1 and an inner surface 2 and a thickness formed between the inner and outer surfaces.
  • the thickness is The different positions of the braces are unevenly distributed.
  • the thickness of the braces area A is larger than the other areas of the braces.
  • This area A is the position where the braces are subjected to force, reinforcement, wear resistance and/or additional accessories, and is set on the area A
  • Figure 6 shows the installation method of the male and female buckle 4 on the area A through the small hole 3
  • the male and female buckle 4 includes a male buckle 5 and a female buckle 6.
  • the convex part of the male buckle 5 passes through the small hole 3 and works with the female buckle 6 to be fixed on the area A.
  • the male and female buckle 4 can be connected with a rubber band or Other accessories work together to correct the position and/or malocclusion of the teeth.
  • this embodiment is a transparent orthodontic brace, including an outer surface 1 and an inner surface 2 and a thickness formed between the inner and outer surfaces.
  • the thickness is uniformly distributed at different positions of the brace, and Comprising a reinforcing member 3, the reinforcing member is arranged in the brace region A, the region A is the position where the brace is stressed, reinforced, wear-resistant and/or additional accessories are added;
  • a metal hook 4 is embedded between the inner surface and the reinforcing member, and the manufacturing method of the braces includes the following steps:
  • S4 Remove the integral thermoplastic sheet completed by S3 from the tooth mold, and trim it into a transparent brace suitable for the patient to wear.
  • the transparent brace includes a reinforcing part 3 and a metal hook 4, which is an integrated structure.
  • the hook part 5 of the metal hook 4 penetrates the inner surface and the outer surface of the braces, and protrudes outside the outer surface 1.
  • this embodiment is a way of installing an accessory on a transparent orthodontic brace, which includes an outer surface 1 and an inner surface 2 and a thickness formed between the inner and outer surfaces. The thickness is different from that of the brace.
  • the positions are evenly distributed, and further includes a reinforcing member 3, the reinforcing member 3 is arranged on the brace region A, and the region A is the strength of the brace, reinforcement, wear resistance, and/or the location of additional accessories;
  • the step of arranging the reinforcing member 3 on the transparent braces is: positioning the tooth position corresponding to the area A on the patient's tooth mold, placing a correspondingly sized thermoplastic sheet with a thickness of 0.5 mm on the tooth position, and using vacuum adsorption The thermoplastic sheet is adsorbed and attached to the outer surface of the mold at the position of the tooth to form a reinforcing member 3;
  • the male and female buckle 5 can be directly installed on the brace through the small hole 4; as shown in Figure 10 Shown is how the male and female buckle 5 is installed on the brace through the small hole 4.
  • the male and female buckle 5 includes a male buckle 6 and a female buckle 7.
  • the convex part of the male buckle 6 passes through the small hole 4 and works with the female buckle 6 to fix it.
  • the male and female buckles 5 can work with rubber bands or other accessories to correct the position of the teeth and/or the problem of incorrect teeth.
  • the present embodiment is a method in which a reinforcing member is arranged on a transparent orthodontic brace.
  • the brace includes an outer surface and an inner surface, and a thickness formed between the inner and outer surfaces. The different positions of the braces are evenly distributed.
  • the braces shown in the picture are transparent braces that are worn on the upper jaw of the patient.
  • the braces include reinforcing part 1.
  • the reinforcing part 1 is made of thermoplastic sheet. The two ends of the braces are embedded in the braces areas A and B.
  • the reinforcing parts 1 It is used to fix the position of the molars corresponding to the regions A and B to prevent the position changes and displacement of the molars during the tooth correction;
  • Figure 12 is a three-dimensional view of the reinforcing component 1.
  • the two ends of the reinforcing component 1 are provided with anti-dropping structures 2, and the anti-dropping structure 2 is an irregular quadrilateral cutout for embedding the two ends of the reinforcing component with transparent braces to make it Integrate with the transparent braces, the manufacturing steps of the transparent braces of the one-piece structure are as follows:
  • the transparent brace includes a reinforcing component 1 and is an integrated structure.
  • a metal strip 3 is embedded in the reinforcing member 1 to enhance the fixing effect of the reinforcing member 1, and at the same time, the hardness of the reinforcing member 1 is enhanced so that it is in the fixing process It is not prone to deformation and material strain.
  • the present embodiment is a way of installing reinforcing components and accessories on a transparent orthodontic braces.
  • the transparent braces include an outer surface and an inner surface, and a thickness formed between the inner and outer surfaces. The thickness is evenly distributed at different positions of the braces.
  • the braces shown in the figure are transparent braces worn on the upper jaw of the patient, and also include reinforcing parts 1, 2, and 3.
  • the reinforcing part 1 is arranged on the brace area A
  • the reinforcing part 2 Set on the braces area B
  • the reinforcement component 3 is set on the braces area C
  • the reinforcement components 1 and 2 are both used to fix the molars corresponding to the areas A and B to prevent the molars from changing and shifting during the process of orthodontics.
  • the reinforcing component 3 is used to increase the strength of the braces in the area C.
  • the reinforcing components 1, 2, and 3 work together to prevent the transparent braces from deforming and/or material strain.
  • the steps for setting parts 1, 2, and 3 on the transparent braces are as follows:
  • S4 Remove the integral thermoplastic sheet completed by S3 from the tooth mold, and trim it into a transparent brace suitable for the patient to wear.
  • the transparent brace includes reinforcing parts 1, 2, and 3 and is an integrated structure.
  • FIG 15 it is a schematic diagram of the orthodontic method of the braces.
  • metal hooks 4 and 5 are provided at the positions of the braces corresponding to the molar teeth 16 and the molar teeth 26.
  • the metal hooks 6 and 7 set on the mandibular braces work together to adjust the position and/or occlusion of the mandibular teeth with the molars 16 and 26 as the anchoring area; as shown in Figure 16, the molars 16 are used as the anchoring area to pass
  • the metal hook 4, the rubber band, and the metal hook 6 arranged on the lower teeth cooperate to adjust the position and/or occlusion of the lower teeth.
  • the present embodiment is a way for attachments and reinforcing components to be installed on a transparent braces.
  • the transparent braces includes an outer surface and an inner surface, and a thickness formed between the inner and outer surfaces.
  • the braces are evenly distributed in different positions.
  • the braces shown in the figure are transparent braces worn on the upper jaw of the patient, including jaw expander 1, reinforcement components 2 and 3, and the reinforcement components 2 and 3 are respectively set in the braces regions A and B Above, it is used to fix the teeth 16-18 and teeth 26-28 corresponding to the areas A and B to prevent the teeth in the areas A and B from changing positions and shifting during the correction process;
  • the two ends of the jaw expander 1 are fixed structures 4 that fit the teeth in the regions A and B.
  • the jaw expander 1 is used to expand the upper jaw and correct the narrow and/or narrow upper jaw.
  • the problem of malocclusion the fixing structure 4 is used to fix the teeth 16-18 and the teeth 26-28 corresponding to the areas A and B at the same time, so as to prevent the teeth in the areas A and B from changing and shifting during the correction process. Phenomenon such as position;
  • S4 Remove the integral thermoplastic sheet completed by S3 from the tooth mold, and trim it into a transparent brace suitable for the patient to wear.
  • the transparent brace includes the jaw expander 1, the reinforcing parts 2 and 3, and is an integrated structure.
  • this embodiment is a way in which a reinforcing member is arranged on a transparent orthodontic brace.
  • the brace includes an outer surface and an inner surface, and an outer surface formed between the inner and outer surfaces. Thickness. The thickness is evenly distributed at different positions of the braces. After the patient has a tooth extracted, there is a vacancy position 1 due to tooth vacancies. This position 1 has no teeth that can be fixed. This position 1 is easily affected by the interaction between the braces and the teeth in the vicinity. Material strain and/or deformation occurs, so position 1 is the position where the force strength needs to be increased. As shown in FIG. 20, the reinforcing member 2 is set on the position 1, as shown in FIG.
  • the reinforcing member 2 is in the shape of "I", which can be better fit and set on the position 1, and the force strength of the position 1 is increased, so that it is not prone to material strain and/or deformation .
  • the reinforcing member 2 is a thermoplastic sheet, and the step of arranging the reinforcing member 2 at the position 1 includes:
  • this embodiment is a way of providing a reinforcing member on a transparent orthodontic brace.
  • the brace includes an outer surface, an inner surface, and a thickness formed between the inner and outer surfaces. The different positions are evenly distributed, and further includes a reinforcing member 1 disposed in the braces area A, and the area A is the area where the teeth need to be moved to the inner side of the oral cavity;
  • Fig. 23 is a three-dimensional view of the reinforcing member 1.
  • the reinforcing member 1 is arranged on the inner surface of the dental mouthpiece and is integrated with the dental mouthpiece.
  • the manufacturing steps are as follows:
  • Figures 24 and 25 are schematic diagrams of the orthodontic method of the braces.
  • transparent hooks need to be set on both sides of each tooth, namely the front hook 2 and the back hook 2 ', Hook the front hook 2 and the corresponding back hook 2'of each tooth with a rubber band 3, so as to generate a pulling force that can push the teeth to the inside of the oral cavity;
  • the reinforcing member 1 can effectively prevent the deformation and/or material strain of the brace in the area A due to the interaction between the hook 2, the rubber band 3, the transparent braces and the teeth.
  • this embodiment is a transparent orthodontic brace.
  • the brace includes an outer surface, an inner surface, and a rigidity formed between the inner and outer surfaces.
  • the rigidity is unevenly distributed at different positions of the brace.
  • the braces are braces worn by the patient on the upper teeth. After wearing, the rigidity of the contact surface 2 with the patient’s gums and/or gums is less than that of the contact surface 1 with the patient’s teeth, and the contact surface 2 has a lower rigidity, enabling the patient to wear
  • the braces produce less foreign body sensation and discomfort, and the rigidity of the contact surface 1 is greater, which needs to be used to correct the position of the patient's teeth. Therefore, the braces have more diversified functions in different positions.
  • this embodiment is a computer-aided method for making transparent orthodontic braces, including the following steps:
  • S1 Scan the patient’s mouth to generate a three-dimensional model of the patient’s mouth;
  • S2 Upload the 3D model image completed by S1 to the software for orthodontic treatment
  • S3 Design the process of orthodontics based on the patient's teeth on the software, and formulate a gradual adjustment plan for the patient's orthodontics.
  • the direction and/or position of the teeth can be adjusted, and/or the teeth can be added Different kinds of accessories and strengthening parts;

Abstract

Appareil orthodontique transparent présentant une surface externe (1), une surface interne (2) et une épaisseur formée entre la surface interne et la surface externe, l'épaisseur étant répartie de manière irrégulière au niveau de différentes positions de l'appareil orthodontique, et les positions de l'appareil orthodontique sollicitées, renforcées, résistantes à l'usure et/ou au niveau desquelles sont ajoutées des accessoires, étant plus épaisses que les positions qui sont normalement sollicitées, moins sollicitées, non sollicitées et/ou qui ne servent que pour assurer une liaison. L'appareil orthodontique transparent présente diverses fonctions en lien avec les différences d'épaisseur ou de rigidité de l'appareil orthodontique transparent lui-même et des composants et/ou accessoires supplémentaires sur l'appareil orthodontique, et n'est sujet ni à déformation, ni à défaillance matérielle.
PCT/CN2020/112841 2019-09-02 2020-09-01 Appareil orthodontique transparent WO2021043129A1 (fr)

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HK19129013 2019-09-02
HK19129013.9 2019-09-02

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