Invisible orthodontic appliance capable of realizing three-dimensional control and manufacturing method thereof

Abstract

The present application discloses an invisible brace that can achieve three-dimensional precise control and a method for making the same, wherein the invisible brace includes: a plurality of invisible fixing posts, including an adhesive portion for connecting to the tooth surface and a control portion fixed to the adhesive portion; invisible archwires, which connect the invisible fixing posts in sequence, the invisible archwires are wrapped around the control portions of the invisible fixing posts and use the elastic force of their own deformation to apply force to the invisible fixing posts, and the outer edge of the control portion has a plurality of force-bearing surfaces, each of which is against the invisible archwire. The technical solution disclosed in the present application combines the advantages of the traditional brackets and the invisible brace in the relevant technical solutions, replaces the stainless steel archwires with the elasticity of the invisible archwires, and replaces the traditional brackets with invisible fixing posts, thereby controlling the movement of the invisible fixing posts to achieve control of the teeth. The technical solution disclosed in the present application can not only achieve the aesthetic effect of the invisible brace, but also control the root movement of the teeth.

Description

Technical Field

[0001] The present application relates to the field of dental orthodontics, and in particular to an invisible orthodontic appliance capable of achieving three-dimensional control and a method for manufacturing the same. Background Art

[0002] In clinical orthodontic practice, metal and ceramic fixed appliances are often used. Metal and ceramic fixed appliances use stainless steel archwires placed in the archwire slots of brackets to control the movement of teeth. However, this type of appliance has problems such as unsightly appearance, difficulty in cleaning, and easy to produce dental calculus.

[0003] In addition to orthodontic brackets made of metal and ceramic materials, there are also invisible removable appliances made of transparent polymer materials. The invisible removable appliances currently on the market were originally invented and manufactured by Align Technology in the United States. The biggest advantages of this type of appliance are that it is easy to wear, can be taken at any time, patients have little foreign body sensation, and it is invisible and beautiful. At the same time, the inventors found that the invisible appliance solutions in the related technology are difficult to control the roots and are not suitable for tooth extraction cases and difficult cases, while orthodontic clinical tooth extraction cases often exceed 60%. At the same time, during the use of the same type of appliance, patients must take it off when eating every day, and they need to brush their teeth and put it back on after eating, which can easily interrupt the treatment process. Summary of the invention

[0004] In order to solve the above technical problems, the present application discloses an invisible orthodontic appliance capable of achieving three-dimensional control, comprising:

[0005] A plurality of invisible fixing piles, including a bonding portion for connecting with the tooth surface and a control portion fixed to the bonding portion;

[0006] Invisible archwires are connected to the invisible fixing posts in sequence. The invisible archwires are wrapped around the control parts of the invisible fixing posts and use their own memory elastic force to apply force to the invisible fixing posts. The outer edge of the control part has multiple force-bearing surfaces, and each force-bearing surface is against the invisible archwires.

[0007] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0008] Optionally, the invisible fixing pile is an integrated structure, made of high-strength transparent ceramics or polymer materials, the control part is formed by radial expansion of the bonding part, and the outer peripheral surface of the control part is non-circular.

[0009] Optionally, a restraint area for accommodating the control part is provided on one side of the invisible archwires facing the invisible fixing post, and the restraint area wraps around and fits tightly against the control part.

[0010] Optionally, the width of the invisible archwires ranges from 5 mm to 10 mm.

[0011] Optionally, the width range of the invisible archwires is adapted to the single-sided tooth surface.

[0012] Optionally, the invisible archwire has a C-shaped cross-section in the restraint area and includes

[0013] A fitting surface, pressed against the lip side of the control portion;

[0014] A first control surface is pressed against the jaw surface and the gingival surface of the labial side of the control portion;

[0015] The second control surface is pressed against the tongue-facing side of the control portion.

[0016] Optionally, the invisible archwires further include a third control surface, and the third control surface is pressed against the mesial surface and the distal surface of the labial side of the control portion.

[0017] Optionally, the invisible archwires are C-shaped in cross-section as a whole and cooperate with each control part through an integrally connected constraint area.

[0018] Optionally, the constraint areas are arranged at intervals on the invisible archwires, and between the connected constraint areas is a mating surface that abuts against the tooth surface, and each control part cooperates with the invisible archwires through an independent constraint area.

[0019] The present application also discloses a method for manufacturing an invisible orthodontic appliance capable of achieving three-dimensional control, comprising:

[0020] Digital tooth replacement design for each patient's teeth;

[0021] According to the results of tooth transfer design, digital simulation models of each step in the correction process are produced through professional tooth transfer software;

[0022] An invisible fixed post is bonded to the digital simulation model and 3D printed into a solid model, and then the invisible archwires of the corresponding steps are obtained through hot pressing.

[0023] The technical solution disclosed in this application combines the advantages of traditional brackets and invisible braces in related technical solutions, replaces stainless steel archwires with invisible archwires with their memory elasticity, and replaces traditional brackets with invisible fixed posts, thereby achieving three-dimensional precise control of teeth by controlling the movement of invisible fixed posts. The technical solution disclosed in this application can not only achieve the aesthetic effect of invisible braces, but also control the root movement of teeth.

[0024] The specific beneficial technical effects will be further explained in the specific implementation methods in combination with specific structures or steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1a is a schematic diagram of an invisible brace appliance in one embodiment;

[0026] Figure 1b and Figure 1c for Figure 1a Schematic diagram of different viewing angles of invisible braces;

[0027] Figure 1d for Figure 1c The enlarged schematic diagram;

[0028] Figure 1e for Figure 1a Simulation diagram of invisible braces in the video;

[0029] Figure 2a A schematic diagram of an invisible brace appliance in another embodiment;

[0030] Figure 2b and Figure 2c for Figure 2a Schematic diagram of different viewing angles of invisible braces;

[0031] Figure 2d for Figure 2c The enlarged schematic diagram;

[0032] Figure 2e for Figure 2a Simulation diagram of invisible braces in .

[0033] The reference numerals in the figures are described as follows:

[0034] 1. Invisible fixing pile; 11. Adhesive part; 12. Control part;

[0035] 2. Invisible Archwires; 21. Constraint area; 22. Fitting surface; 23. First control surface; 24. Second control surface; 25. Third control surface. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0037] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0039] refer to Figures 1a to 2e The present application discloses an invisible orthodontic appliance capable of realizing three-dimensional control, including:

[0040] A plurality of invisible fixing piles 1, comprising an adhesive portion 11 for connecting with a tooth surface and a control portion 12 fixed to the adhesive portion 11;

[0041] The invisible archwires 2 are connected to the invisible fixing posts 1 in sequence. The invisible archwires 2 are wrapped around the control parts 12 of the invisible fixing posts 1 and apply force to the invisible fixing posts 1 by using the memory elastic force of their own deformation. The outer edge of the control part 12 has multiple force-bearing surfaces, and each force-bearing surface is against the invisible archwires 2.

[0042] The function of the invisible fixed post 1 is consistent with that of the orthodontic bracket, which transmits the power of the invisible archwires, an important component in this case, to the teeth and realizes precise control of the teeth. The invisible fixed post 1 is equivalent to the bracket in the relevant technical solution, and the invisible archwires 2 are equivalent to the archwires in the relevant technical solution. The difference is that the cooperation of the invisible archwires 2 and the invisible fixed post 1 can not only ensure the orthodontic effect but also avoid the problem of bracket leakage, thereby solving the problem of aesthetics and difficulty in cleaning. While wrapping each invisible fixed post 1, the invisible archwires 2 can also effectively improve the holding force of the invisible fixed post 1, so that a stable and uniform traction force can be applied. In principle, the invisible fixed post 1 can be designed in a variety of shapes, as long as it can meet the transmission of forces in multiple directions. Correspondingly, the cooperation form of the invisible archwires 2 and the invisible fixed post 1 must also meet this feature.

[0043] Regarding the specific setting of the invisible fixing post 1, referring to an embodiment, the invisible fixing post 1 is an integrated structure, the control part 12 is formed by the radial expansion of the bonding part 11, and the outer peripheral surface of the control part 12 is non-circular. The radially expanded control part 12 itself can well transmit the force in its own axial direction. In the accompanying drawings, the axial direction of the control part 12 itself refers to the direction perpendicular to the labial tooth surface. In order to achieve root control treatment, the control part 12 also needs to transmit its own circumferential force, so the non-circular shape is a reasonable setting. Taking into account the difficulty of manufacturing, the ease of adjustment and the aesthetics, referring to an embodiment, the cross-section of the control part 12 is rectangular.

[0044] Regarding the specific configuration of the invisible archwires 2 , referring to one embodiment, a restraint area 21 for accommodating the control portion 12 is provided on one side of the invisible archwires 2 facing the invisible fixing post 1 , and the restraint area 21 wraps around and is tightly attached to the control portion 12 .

[0045] While passing through the control part 12, the constraint area 21 simultaneously constrains the movement of the control part 12 in all dimensions. When the invisible archwires 2 tend to deform under the drive of their own memory elasticity, the force can be transmitted to the tooth surface through the invisible fixing post 1, thereby realizing the correction process. In theory, the constraint ability of the constraint area 21 on the control part 12 determines the upper limit of the correction force that the invisible braces can apply to the teeth in this embodiment. The specific parameters can be adjusted by the material of the invisible archwires 2, the degree of contraction, the material of the control part 12, the friction coefficient between the constraint area 21 and the control part 12, and the matching conditions.

[0046] In terms of specific parameter design, referring to an embodiment, the width of the invisible archwires 2 ranges from 5 mm to 10 mm.

[0047] The width of the invisible archwire 2 is designed to be more suitable for the installation environment. Referring to an embodiment, the width of the invisible archwire 2 is adapted to the tooth surface on one side.

[0048] Compared with the prior art solutions, the invisible braces of the prior art solutions are covered on the teeth, so they cooperate with at least two sides of the teeth (labial side and lingual side), but the invisible archwires in this case only cooperate with the unilateral tooth surface of the teeth. In the related technical solutions, because the invisible braces are set on the teeth, the patient needs to remove them during eating to interrupt the treatment. This embodiment solves this problem by using invisible archwires 2 that are adapted to the unilateral tooth surface. The size adaptation of the invisible archwires 2 can well avoid the occlusal surface of the teeth, thereby avoiding the impact on eating. At the same time, the invisible archwires 2 are close to the tooth surface, and the appearance can be designed to be smooth, which is easy to clean. In general, in order to facilitate the operation of clinicians and other operators, the invisible archwires 2 are generally located on the labial side of the teeth.

[0049] Accordingly, in order to solve the problem of aesthetics, it can be referred to an embodiment that the invisible fixing post 1 and the invisible archwires 2 are both made of transparent materials.

[0050] Regarding the details of the cooperation between the invisible archwire 2 and the control unit 12, referring to an embodiment, the cross-sectional shape of the invisible archwire 2 in the restraint area 21 is C-shaped and includes:

[0051] The fitting surface 22 is pressed against the lip side of the control portion 12;

[0052] The first control surface 23 is pressed against the jaw surface and the gingival surface of the labial side of the control portion 12;

[0053] The second control surface 24 is pressed against the tongue-facing side of the control portion 12 .

[0054] The first control surface 23 and the second control surface 24 can apply forces in different directions to the control part 12. In actual products, the directions of the various forces are not necessarily perpendicular, but in principle they can form mutually perpendicular component forces to achieve three-dimensional precise control of the invisible fixing post 1. The labial side and lingual side mentioned herein refer to the invisible archwires 2 and the invisible fixing post 1 being arranged on the labial side of the teeth. When the invisible archwires 2 and the invisible fixing post 1 are arranged on other surfaces of the teeth, the labial side mentioned above should be understood as the side of the invisible fixing post 1 facing away from the teeth, and the lingual side should be understood as the side of the invisible fixing post 1 facing the teeth.

[0055] In order to better achieve three-dimensional precise control of the invisible fixing post 1, the setting of the control surface can be further refined. Referring to an embodiment, the invisible archwire 2 also includes a third control surface 25, and the third control surface 25 presses against the mesial surface and the distal surface of the labial side of the control portion 12.

[0056] As attached Figure 2a to Figure 2e The solution in the embodiment has the first control plane 23, the second control plane 24 and the third control plane 25 mentioned above; and the attached Figures 1a to 1e The disclosed solution in the embodiment only has the first control surface 23 and the second control surface 24 mentioned above. In actual products, a limiting convex strip (not shown) can be provided to play the role of the third control surface 25. Weakening the third control surface 25 can also bring corresponding advantages. Referring to an embodiment, the invisible archwires 2 are C-shaped in cross section as a whole and cooperate with each control part 12 through the integrally connected constraint area 21.

[0057] When the constraint area 21 is connected as a whole, clinicians and other operators can easily install and adjust the invisible archwires 2, and the side of the invisible archwires 2 away from the teeth is flatter and easier to clean. In actual products, multiple sections of invisible archwires 2 can form a whole, which is convenient for flexible adjustment during actual operation.

[0058] Similarly, the constraint area 21 can also be set to other forms. Referring to one embodiment, the constraint areas 21 are arranged at intervals on the invisible archwires 2, and the mating surfaces that are in contact with the tooth surface are between the connected constraint areas 21. Each control part 12 cooperates with the invisible archwires 2 through an independent constraint area 21.

[0059] In this embodiment, each constraint area 21 controls the invisible fixing post 1 more accurately, and the remaining part fits the tooth surface more closely, so the foreign body sensation is smaller, more beautiful, and foreign bodies are prevented from invading the gap between the invisible archwires 2 and the teeth. It can be understood that the invisible archwires 2 are covered on the invisible fixing post 1 and the tooth surface in the form of a film, and hardened after being shaped.

[0060] In order to meet different treatment needs, referring to an embodiment, a traction hook (not shown) is provided on the invisible fixing post 1. Compared with other traction components of invisible correction in related technologies, the traction hook can act more directly on the teeth, thereby taking into account both aesthetics and correction effect.

[0061] The invisible braces in this application also need to be manufactured in conjunction with corresponding methods to achieve precise manufacturing. This application also discloses a method for manufacturing an invisible braces that can achieve three-dimensional control, including:

[0062] Digital tooth replacement design for each patient's teeth;

[0063] Make digital models of each step in the correction process based on the results of digital tooth transfer design;

[0064] An invisible fixing post 1 is bonded to the digital model and then 3D printed into a physical model, and finally hot-pressed to obtain invisible archwires 2 of the corresponding step.

[0065] The digital pasting technology can be used in the process of pasting the invisible fixed post 1 to obtain accurate treatment effect. When clinicians use the invisible archwires 2, compared with the bracket-archwire solution in the related art, it has the advantages of simple operation and easy adjustment, and compared with the invisible braces in the related art, it has the advantage of good treatment effect.

[0066] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0067] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. Invisible braces that can achieve three-dimensional control, It is characterized in that include: A plurality of invisible fixing piles, each of which is an integrated structure, made of high-strength transparent ceramic or polymer material, and includes a bonding portion for connecting with the tooth surface and a control portion fixed to the bonding portion, wherein the control portion is formed by radial expansion of the bonding portion, and the outer peripheral surface of the control portion is non-circular; An invisible dental arch wire is sequentially connected to each of the invisible fixing posts. A constraint area for accommodating the control part is provided on one side of the invisible dental arch wire facing the invisible fixing post. The constraint area wraps around and fits tightly against the control part of each of the invisible fixing posts. The invisible dental arch wire applies force to the invisible fixing post using its own memory elastic force. The outer edge of the control part has multiple force-bearing surfaces, each of which is against the invisible dental arch wire. The width range of the invisible dental arch wire is adapted to the single-sided tooth surface and the width range is 5 mm to 10 mm.

2. The invisible brace according to claim 1, It is characterized in that The cross-sectional shape of the invisible dental arch wire in the restrained area is C-shaped and includes: A fitting surface, pressed against the lip side of the control portion; A first control surface is pressed against the jaw surface and the gingival surface of the labial side of the control portion; The second control surface is pressed against the tongue-facing side of the control portion.

3. The invisible brace according to claim 2, It is characterized in that The invisible dental arch wire also includes a third control surface, which is pressed against the mesial surface and the distal surface of the labial side surface of the control part.

4. The invisible brace appliance according to claim 1, It is characterized in that The invisible dental arch wire is C-shaped in cross section as a whole and cooperates with each control part through an integrally connected constraint area.

5. The invisible brace according to claim 1, It is characterized in that The constraint areas are arranged at intervals on the invisible dental arch wire, and between the connected constraint areas is a matching surface that abuts against the tooth surface. Each control part cooperates with the invisible dental arch wire through an independent constraint area.

6. A method for manufacturing an invisible brace appliance capable of realizing three-dimensional control, used for processing the invisible brace appliance according to any one of claims 1 to 5, It is characterized in that include: Digital tooth replacement design for each patient's teeth; According to the results of tooth transfer design, digital simulation models of each step in the correction process are produced through professional tooth transfer software; The invisible fixing post of the invisible braces is bonded to the digital simulation model and is formed into a solid model through 3D printing, and then the invisible dental arch wire of the invisible braces of the corresponding step is obtained through hot pressing.

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