Method of providing orthodontic appliances

Abstract

To provide an orthodontic appliance capable of orthodontic treatment with precision, high degree of freedom and high efficiency Provide the law. The method for providing an orthodontic appliance is based on the shape of the oral cavity and the protruding piece 1 to be attached to the tooth to be corrected. Based on the shape and adhesive position of the auxiliary mouthpiece 2, the three-dimensional data of the auxiliary mouthpiece 2 and the correction mouthpiece 3 are calculated. a step of creating three-dimensional data of the auxiliary mouthpiece 2; Based on the data, the auxiliary mouthpiece 2 having the recess 21 corresponding to the protrusion 1 is created. and a step of determining the protrusion 1 and the protrusion 2 based on three-dimensional data of the orthodontic mouthpiece 3. and creating the orthodontic mouthpiece 3 having a contacting pressing portion 32.

Description

[Technical field]

[0001] The present invention relates to a method for providing an orthodontic appliance, and in particular to a method for precisely performing orthodontic treatment using a mouthpiece. The present invention relates to a method for implementing the above-mentioned method with high degree of freedom and high efficiency. [Background technology]

[0002] Conventionally, mouthpiece-type orthodontic appliances have been provided. Or, they are attached to cover parts of the teeth. At this time, some of the teeth are pressed in a predetermined direction. By wearing the mouthpiece for a certain period of time, the position of the teeth will gradually change. Typically, a dentist will develop a series of multi-step orthodontic plans and The lyre will create the mouthpieces used in each step of the process according to the plan. The mouthpiece is replaced each time, and the teeth are gradually adjusted to the correct position.

[0003] The process of making a mouthguard is roughly as follows: The dentist examines the patient's oral cavity. The supplier will acquire the scan data and dental models, and create an orthodontic plan. According to the scan data or 3D data of the dental model and the orthodontic plan, each stage of the orthodontic plan is We will create 3D CAD data for each mouthpiece to be used in the training. Based on the data, a 3D printer using a photo-curable resin for stereolithography is used to create the mouse. A piece is made.

[0004] In orthodontics using a mouthpiece, orthodontic force is efficiently applied to the teeth to be orthodontic treated. In this regard, Patent Document 1 describes a method for correcting the teeth. In the pot, the thickness of the mouthpiece can be changed to change the magnitude and direction of the force applied to the teeth. It is described that the above can be freely adjusted. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2018-94245 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the mouthpiece described in Patent Document 1 requires special know-how for its design. In addition, there is a problem with the thickness of the material being changed locally. There is a limit to how much force can be adjusted in terms of magnitude and direction, and correction plans must be formulated taking this limit into account. There is.

[0007] The present invention has been made to solve such problems, and is capable of precisely and freely The present invention aims to provide a method for providing an orthodontic device that can perform orthodontic treatment with high efficiency. do. [Means for solving the problem]

[0008] A method for providing an orthodontic appliance according to an embodiment of the present invention includes the steps of: Based on the shape and attachment position of the protruding piece to be attached, the 3D data of the auxiliary mouthpiece and A step of creating three-dimensional data of the correction mouthpiece and the auxiliary mouthpiece; Based on the dimensional data, the auxiliary mouthpiece having a recess corresponding to the protrusion is created. and contacting the protruding piece based on three-dimensional data of the orthodontic mouthpiece. and creating the orthodontic mouthpiece having a pressing portion for pressing the orthodontic mouthpiece.

[0009] A method for providing an orthodontic appliance according to an embodiment of the present invention includes the steps of: Based on the shape and bonding position of the protruding piece to be attached, a recess corresponding to the protruding piece is provided. A step of creating an auxiliary mouthpiece, and determining the shape of the oral cavity and the tooth to be orthodontized. The pressing portion is adapted to come into contact with the protruding piece based on the shape and the bonding position of the protruding piece. and creating an orthodontic mouthpiece.

[0010] The auxiliary mouthpiece according to one embodiment of the present invention is a piece of protrusion to be attached to a tooth to be orthodontic treated. The recess has a corresponding recess.

[0011] The orthodontic mouthpiece according to one embodiment of the present invention comprises a protrusion piece bonded to a tooth to be orthodontic treated. It has a pressing portion that comes into contact with the tooth to be corrected and generates a force to be applied to the tooth to be corrected. Effect of the Invention

[0012] The present invention provides an orthodontic device that allows precise, highly flexible and highly efficient orthodontic treatment. It is possible to provide a method for providing the above. [Brief description of the drawings]

[0013] [Figure 1] 1A to 1C are schematic diagrams showing the process of bonding a protruding piece 1 to a target tooth. [Diagram 2] 1 is a schematic diagram showing the process of attaching an orthodontic mouthpiece 3 over a protruding piece 1. FIG. [Diagram 3] 1A to 1C are diagrams showing other forms of the corrective mouthpiece 3. [Figure 4] 1A to 1C are diagrams showing other forms of the corrective mouthpiece 3. [Diagram 5] FIG. 2 is a perspective view showing an example of a protruding piece 1. [Figure 6] FIG. 2 is a perspective view showing an example of a protruding piece 1. [Figure 7] FIG. 2 is a perspective view showing an example of an auxiliary mouthpiece 2. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0014] Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. do.

[0015] 1 and 2 are diagrams for explaining the orthodontic process using the orthodontic appliance according to the present invention. This is a schematic diagram for orthodontic treatment. Orthodontic treatment consists of two main processes. (1) A process of bonding the protruding piece 1 to the tooth to be orthodontic treated (hereinafter simply referred to as the target tooth) (2) A process of attaching the orthodontic mouthpiece 3 over the protruding piece 1

[0016] First, referring to FIG. 1, (1) a protruding piece 1 is attached to a tooth to be orthodontized (hereinafter simply referred to as a target tooth). This section explains the process of attaching the device.

[0017] FIG. 1(a) is a cross-sectional view of a target tooth before orthodontic treatment, as seen from the side. The right side of the figure shows the outside of the target tooth. The left side is the inside.

[0018] In this process, first, the protrusion piece 1 is attached to the surface of the target tooth. As shown in FIG. 5, the protruding piece 1 in this embodiment has a hemispherical protrusion 11. The base 13 has a back surface 131 for bonding, as shown in FIG. The adhesive surface 131 is brought into close contact with the surface of the target tooth, so that the protruding piece 1 is bonded to the target tooth.

[0019] FIG. 1(b) is a diagram showing the state before the auxiliary mouthpiece 2 is attached to the dentition. FIG. 7 shows a perspective view of this state. The auxiliary mouthpiece 2 is used to attach the protruding piece 1 to the target tooth. The inner shape of the auxiliary mouthpiece 2 is designed to match the teeth alignment before orthodontic treatment. The auxiliary mouthpiece 2 is formed to fit snugly. The protrusion 1 fits snugly in the auxiliary mouthpiece 2. A round recess 21 is formed. Inside the recess 21, the adhesive surface 131 is in contact with the target tooth surface. The protruding piece 1 is set so as to resist the force of the auxiliary mouthpiece 2. The device is provided to the patient in a kit.

[0020] FIG. 1(c) is a diagram showing a state in which the auxiliary mouthpiece 2 is attached to the dentition. In this state, the adhesive surface 131 of the protruding piece 1 is in close contact with the surface of the target tooth, and the protruding piece 1 is attached to a predetermined position of the target tooth. Glue to.

[0021] Fig. 1(d) is a diagram showing the state in which the auxiliary mouthpiece 2 has been removed from the row of teeth. Since 1 is attached to the surface of the target tooth, when removing it, the auxiliary mouthpiece 2 is separated from the protruding piece 1. break away.

[0022] The material of the auxiliary mouthpiece 2 is such that it can be attached to the dentition and the protruding piece 1 can be removed smoothly and reliably. It is preferable that the material has appropriate rigidity and elasticity so that the material can be used as a support. For example, the material has biocompatibility. The auxiliary mouthpiece 2 can be made of a transparent resin having a certain thickness. The protruding piece 1 is fitted to the periphery of the target tooth so that it can be positioned at a predetermined position on the target tooth. For example, it may cover the entire dentition, or it may cover a part of the dentition, Alternatively, it may cover only the front or back surface of the dentition.

[0023] A typical method for making the auxiliary mouthpiece 2 is as follows. First, the shape of the oral cavity is indicated. Based on the data, three-dimensional CAD data is created that will be the basis for the auxiliary mouthpiece 2. Data showing the shape of the cavity can be obtained, for example, from 3D scan data of the oral cavity, CT data, or This includes the original data, and 3D scan data of the dental model. Next, the shape and Based on the planned attachment position to the target tooth, the three-dimensional C Create AD data. Finally, transfer the 3D CAD data you created to the 3D printer. Outputs auxiliary mouthpiece 2.

[0024] The material of the protruding piece 1 may be a biocompatible transparent resin or the like. The piece 1 may have protrusions 11 of any shape, such as a square, not limited to the hemispherical protrusions 11 described above. The shape of the adhesive surface 131 is not limited to a rectangle, and may be changed as appropriate.

[0025] Next, referring to FIG. 2, (2) the process of attaching the orthodontic mouthpiece 3 over the protruding piece 1 will be described. This section explains the service.

[0026] FIG. 2(a) is a diagram showing the state before the orthodontic mouthpiece 3 is attached to the dentition. The protruding piece 1 is already attached to the tooth. The orthodontic mouthpiece 3 applies a predetermined force to the target tooth. The inner shape of the orthodontic mouthpiece 3 is the same as that of the conventional orthodontic mouthpiece. It may be formed to provide some orthodontic force to the target teeth like a regular mouthpiece. Alternatively, the orthodontic brace may be formed to fit the current dentition without generating any orthodontic force. A recess 31 corresponding to the protruding piece 1 is formed in a part of the mouthpiece 3. In this embodiment, a plurality of pressing parts 32 are provided. However, the shape and number of the pressing parts 32 are arbitrary. In other words, it is sufficient that a part of the orthodontic mouthpiece 3 is formed so as to come into contact with the protrusion 11. The contact point becomes the pressing portion 32 .

[0027] FIG. 2(b) is a diagram showing a state in which the orthodontic mouthpiece 3 is attached to the dentition. 2a and the pressing portion 32b come into contact with the protrusion 11 of the protruding piece 1, and a corrective force M (M1 and M2) occurs and corrects the target tooth.

[0028] The direction and magnitude of the corrective force M are as follows: In this case, the adjustment can be easily performed by changing the position and size of the pressing portion 32. The corrective force M can also be adjusted by the thickness and shape of the recess 31.

[0029] FIG. 3 is a diagram showing another embodiment of the orthodontic mouthpiece 3. In this example, the number of protruding pieces 1 is small. The recess 31 is formed so as to cover at least a part of the protrusion 11, and the contact point (or contact The contact surface functions as a pressing portion 32 and generates a corrective force M.

[0030] FIG. 4 is a diagram showing another embodiment of the orthodontic mouthpiece 3. In this example, the inside of the recess 31 The pressing portion 32 contacts the protrusion 11 at one or more contact points (or contact surfaces) and In the example of FIG. 4, two pressing parts 32 are formed to generate the corrective forces M1 and M2. This is what they are doing.

[0031] A typical method for producing the orthodontic mouthpiece 3 is as follows. First, the shape of the oral cavity is Based on the data shown, three-dimensional CAD data that is the basis of the orthodontic mouthpiece 3 is created. Data showing the shape of the oral cavity can be obtained, for example, from 3D scan data, CT data, or This includes X-ray data, 3D scan data of the dental model, etc. Next, the protruding piece 1 is attached. Based on the position and shape, the orthodontic mouthpiece 3 having the recess 31 and the pressing portion 32 is Create the original CAD data. Finally, transfer the created 3D CAD data to the 3D printer. and outputs the orthodontic mouthpiece 3.

[0032] The material of the orthodontic mouthpiece 3 is a biocompatible transparent resin, for example, a resin. By adjusting the thickness of the material at least in the recess 31 and its periphery, The orthodontic force can be adjusted. By increasing the thickness of the material, the force that can be applied to the target tooth via the protruding piece 1 can be adjusted. The orthodontic force is greater, allowing for greater movement of the targeted teeth.

[0033] According to this embodiment, the protruding piece 1 adhered to the target tooth is pressed by the orthodontic mouthpiece 3. By contacting the portion 32, an orthodontic force M can be applied to the target tooth. The orthodontic force M is By adjusting the bonding position of the protruding piece 1 and the formation position of the pressing portion 32, This allows you to design your own mouthpiece in a way that was not possible with conventional orthodontic mouthpieces. This allows for precise, flexible and efficient orthodontic treatment.

[0034] For example, in conventional mouthpiece orthodontics, the occlusal side, such as M1 in Figure 2(b) and Figure 4, It has been difficult or impossible to generate a correction force toward the However, according to this embodiment, In the case of mouthpiece orthodontics, orthodontic force can be generated toward the occlusal surface. In the present embodiment, the tooth axis is almost the center, which was difficult or impossible with conventional mouthpiece orthodontics. This allows the correction of the target tooth by rotating it. It is possible.

[0035] Moreover, according to this embodiment, the orthodontic mouthpiece 3 efficiently transmits the orthodontic force to the target teeth. Therefore, it can have a stronger correction power than conventional orthodontic mouthpieces. Or, it is possible to achieve the same orthodontic force as before with a thinner material.

[0036] Furthermore, according to this embodiment, even if the protruding piece 1 comes off the target tooth, If the latest design data of the auxiliary mouthpiece 2 is available, the auxiliary mouthpiece 2 and the protruding piece 1 can be redesigned. This makes it easy to install the protruding piece 1 again in the exact same position. can.

[0037] The present invention is not limited to the above-described embodiment, and the present invention is not limited to the above-described embodiment. For example, the shape of the protruding piece 1 and the shape of the recesses 21 and 31 may be changed as desired. The contact position between the protrusion 1 and the recess 31, the shape of the contact portion, and the material of each member are determined for the purpose of correction. This can be changed as appropriate depending on the purpose, etc. [Explanation of symbols]

[0038] 1 protruding piece 11 Protrusions 13 Base 131 Adhesive surface 2 Auxiliary mouthpiece 21 Recess 3 Orthodontic mouthpieces 31 Recess 32 (32a, 32b) Pressing part

Claims

[Claim 1] A protruding piece (excluding appliances for wire orthodontics) having a hemispherical protrusion that is attached to a specific position on the surface of the tooth to be orthodontic treated, and an auxiliary mouthpiece formed based on the impression of the teeth to be orthodontic treated, The hemispherical projections of the projection pieces are formed so as to generate an orthodontic force by contacting with a plurality of pressing parts of the orthodontic mouthpiece when the orthodontic mouthpiece is worn, The auxiliary mouthpiece has a recess for receiving and holding the protruding piece at a position corresponding to the specific position, The orthodontic mouthpiece has a plurality of pressing parts that generate the orthodontic force by coming into contact with the hemispherical protrusions of the protruding pieces. Orthodontic appliances.

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