Combined orthodontic appliance and manufacturing method thereof

Abstract

The invention discloses an orthodontic combined appliance which comprises an inner appliance and an outer appliance, the inner appliance comprises a correction contact surface and a peripheral matching surface, the correction contact surface is in contact with the lip side of a to-be-corrected tooth, the outer appliance comprises an inner side surface facing the lip side of the to-be-corrected tooth, the inner appliance is coated with the outer appliance, and at least part of the inner appliance is embedded into the outer appliance. And the inner side surface of the outer appliance is in contact with the peripheral matching surface on the inner appliance. According to the invention, the effects of the two orthodontic devices are simultaneously exerted to synchronously correct teeth, so that the orthodontic efficiency of the teeth is improved.

Description

Technical Field

[0001] This invention relates to the field of orthodontic technology, and in particular to an orthodontic appliance and its manufacturing method. Background Technology

[0002] Orthodontic treatment mainly uses various orthodontic appliances to adjust the coordination between facial bones, teeth, and nerves and muscles of the maxillofacial region. In other words, it adjusts abnormal relationships between the upper and lower jawbones, between the upper and lower teeth, between the teeth and the jawbone, and between the nerves and muscles that connect them. The ultimate goal of orthodontic treatment is to achieve balance, stability, and aesthetics of the stomatognathic system. Orthodontic appliances are required during the orthodontic treatment process.

[0003] Existing orthodontic appliances, whether myofunctional appliances, bite guides, clear aligners, functional appliances, or fixed appliances, can only provide a single corrective effect. The treatment is slow and the scope of treatment is limited.

[0004] Therefore, there is a need to provide a combined orthodontic appliance and its manufacturing method to solve the above problems. Summary of the Invention

[0005] To overcome the above-mentioned shortcomings, the purpose of this invention is to provide a combined orthodontic appliance and its manufacturing method, which can simultaneously utilize the functions of two appliances to treat teeth synchronously and improve the efficiency of orthodontic treatment.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: a combined orthodontic appliance, comprising an inner appliance and an outer appliance; the inner appliance includes an orthodontic contact surface that contacts the labial side of the tooth to be orthodontized and a peripheral mating surface, the outer appliance includes an inner surface facing the labial side of the tooth to be orthodontized, the outer appliance covers the inner appliance, and the inner appliance is at least partially embedded in the outer appliance; when worn for orthodontic treatment, the inner surface of the outer appliance contacts the peripheral mating surface on the inner appliance.

[0007] Furthermore, the internal orthodontic appliance is a fixed orthodontic appliance or a functional orthodontic appliance, and the external orthodontic appliance is an invisible or silicone orthodontic appliance.

[0008] Furthermore, the size of the orthodontic contact surface is matched to the labial surface of the tooth to be treated.

[0009] When the internal orthodontic appliance is a fixed appliance, the orthodontic contact surface is the surface on the bracket that bonds it to the tooth surface. Its size matches the tooth surface so that the bracket can be fixed to the tooth surface.

[0010] When the internal orthodontic appliance is a functional appliance, the orthodontic contact surface is the surface of the wire facing the teeth.

[0011] Furthermore, the outer peripheral edge of the corrective contact surface is connected to the outer peripheral edge of the outer peripheral mating surface.

[0012] Furthermore, the internal orthodontic appliance is a fixed orthodontic appliance, and the external orthodontic appliance is a silicone appliance. The fixed orthodontic appliance includes brackets and wires. The side of the bracket that mates with the tooth to be treated is the orthodontic contact surface, and the remaining peripheral surfaces together form the peripheral mating surface. The inner surface of the silicone appliance is recessed away from the labial side of the tooth and has several receiving slots for the fixed orthodontic appliance to be partially embedded. After the brackets of the fixed orthodontic appliance are adhered to the tooth to be treated and fixed by the wires, the silicone appliance is fitted onto the fixed orthodontic appliance. At this time, the multiple receiving slots correspond one-to-one with the brackets, thereby achieving the positioning and installation of the silicone appliance and ensuring that it achieves the best orthodontic effect.

[0013] Furthermore, the silicone orthodontic appliance includes labial / buccal guards and lingual guards, which are connected to each other, forming two independent, tooth-accommodating orthodontic brackets. The labial side of each bracket faces the tooth, which is the inner surface. When wearing the silicone orthodontic appliance, the upper and lower teeth to be treated can be inserted into the brackets and bite into the appliance, ensuring that the appliance will not dislodge from the teeth during treatment.

[0014] Furthermore, the internal orthodontic appliance is a functional appliance, and the external orthodontic appliance is a silicone appliance. The functional appliance includes a plastic base and a wire, with the wire partially fixedly embedded in the plastic base. The inner surface of the silicone appliance has a receiving groove into which at least part of the outer circumferential mating surface of the wire can be inserted, and the receiving groove matches the structure of the wire. In use, the functional appliance is first worn on the teeth, and then the silicone appliance is positioned by matching the position of the wire with the receiving groove, ensuring the efficiency of simultaneous treatment with both internal and external appliances.

[0015] A method for fabricating a combined orthodontic appliance, used to fabricate a combined appliance, wherein the inner appliance is a fixed appliance or a functional appliance, the outer appliance is a silicone appliance, the fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires, comprising the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, the brackets and wires or plastic base and wires required for treatment are set on the completed three-dimensional model of the teeth in the design software; the number of brackets and the traction force or wire structure applied during subsequent treatment are obtained by the doctor based on the three-dimensional model of the teeth and the patient's individual facial structure analysis.

[0016] S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Match the corresponding silicone orthodontic appliance based on the three-dimensional tooth model generated in S3.

[0017] A method for fabricating a combined orthodontic appliance, used to fabricate a combined appliance, wherein the inner appliance is a fixed appliance or an invisible appliance, the outer appliance is an invisible appliance, the fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires, comprising the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, in the design software, the brackets and wires or plastic base and wire structure required for treatment are set on the completed three-dimensional tooth model. S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Using the three-dimensional tooth model from S3, heat-press the film to form an invisible aligner, i.e., an external aligner, that covers the three-dimensional tooth model; When the internal orthodontic appliance is a fixed appliance, the brackets, wires, indirect bonding guide, and clear aligner must be provided to the dentist. The dentist first uses the indirect bonding guide to bond the brackets to the tooth surface and thread the wires, then the clear aligner is worn.

[0018] Furthermore, in step S3, an indirect bonding guide plate adapted to the three-dimensional tooth model also needs to be printed.

[0019] The beneficial effects of this invention are: In this invention, the internal and external orthodontic appliances work together. After the internal orthodontic appliance is worn on the tooth to be treated, the external orthodontic appliance is then placed on the internal orthodontic appliance and the tooth. This allows the two appliances to work simultaneously to treat the tooth at the same time, thereby improving the efficiency of tooth treatment and achieving precise root control. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention, in which the external orthodontic appliance is a silicone orthodontic appliance and the internal orthodontic appliance is a fixed orthodontic appliance, in the wearing state. Figure 2 This is a schematic diagram of the overall structure of the present invention, in which the external orthodontic appliance is a silicone orthodontic appliance and the internal orthodontic appliance is a functional orthodontic appliance, in the wearing state. Figure 3 This is a schematic diagram of the overall structure of the present invention, in which the external orthodontic appliance is an invisible orthodontic appliance and the internal orthodontic appliance is a fixed orthodontic appliance, in the wearing state. Figure 4 This is a schematic diagram of the overall structure of the present invention, in which the external orthodontic appliance is an invisible orthodontic appliance and the internal orthodontic appliance is a functional orthodontic appliance, in the wearing state. Figure 5 This is a schematic diagram of the overall structure of a silicone orthodontic appliance according to an embodiment of the present invention; Figure 6 This is a schematic diagram illustrating the principle of simultaneous correction using external and internal orthodontic appliances in this invention. In the diagram: 1. Internal appliance; 2. External appliance; 3. Orthodontic bracket; 4. Lip and cheek guards; 5. Tongue guards; 6. Receiving slot; 7. Inner surface. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0022] See appendix Figures 1 to 2 As shown, an orthodontic appliance in this embodiment includes an inner appliance 1 and an outer appliance 2. The inner appliance 1 includes an orthodontic contact surface that contacts the labial side of the tooth to be corrected and a peripheral mating surface. The outer appliance 2 includes an inner surface 7 facing the labial side of the tooth to be corrected. The outer appliance 2 covers the inner appliance 1, and the inner appliance 1 is at least partially embedded in the outer appliance 2. When wearing the appliance, the inner surface 7 of the outer appliance 2 contacts the peripheral mating surface on the inner appliance 1.

[0023] After the inner orthodontic appliance 1 is worn on the teeth to be treated, the outer orthodontic appliance 2 is then placed on top of the inner appliance 1 and the teeth. This allows both appliances to work simultaneously to treat the teeth concurrently, improving treatment efficiency and achieving precise root control. The inner appliance 1 is at least partially embedded in the outer appliance 2 to ensure that the outer appliance 2 will not fall off the inner appliance 1 during prolonged treatment, thus guaranteeing the treatment effect and avoiding any adverse effects on the teeth.

[0024] See appendix Figure 6 When only the internal appliance 1 is used, under the action of orthodontic force F1, the teeth are prone to rotate around their resistance center, causing the teeth to be treated to be unable to perform translational movements as set. However, when the external appliance 2 is equipped with the internal appliance 1, the external appliance 2 can apply an orthodontic force F2 to the teeth to be treated in the opposite direction to the orthodontic force F1. Under the combined action of F1 and F2, the rotation of the teeth during orthodontic treatment can be effectively prevented, thus achieving root translational movement of the teeth to be treated.

[0025] The internal orthodontic appliance 1 is a fixed or functional orthodontic appliance, and the external orthodontic appliance 2 is an invisible or silicone orthodontic appliance.

[0026] Fixed orthodontic appliances can correct bow shape and include brackets and wires. Currently, brackets and wires on the market are made of metal, such as stainless steel. Functional orthodontic appliances have mechanical pushing force and muscle adjustment force and include plastic base and wires. The wires are made of metal, such as stainless steel.

[0027] Invisible braces and silicone braces are made of TPU or silicone.

[0028] When the two types of internal orthodontic appliances 1 are used alone, their materials can easily cause stress stimulation to the gums, leading to problems such as gum pain or ulcers. Therefore, when invisible or silicone appliances are worn outside the two types of internal orthodontic appliances 1, the direct stimulation of the gums by the internal orthodontic appliances 1 can be effectively avoided. The softer invisible or silicone appliances can effectively improve the comfort of the patient when in contact with the gums.

[0029] The size of the orthodontic contact surface is matched to the labial surface of the tooth to be treated.

[0030] When the internal orthodontic appliance 1 is a fixed orthodontic appliance, the orthodontic contact surface is the surface on the bracket that bonds it to the tooth surface. Its size matches the tooth surface so that the bracket can be fixed to the tooth surface. When the internal orthodontic appliance 1 is a functional appliance, the orthodontic contact surface is the surface of the wire facing the teeth.

[0031] The outer peripheral edge of the orthodontic contact surface is connected to the outer peripheral edge of the outer peripheral mating surface.

[0032] When the internal orthodontic appliance 1 is a fixed orthodontic appliance, the orthodontic contact surface and the peripheral mating surface are combined to form a complete bracket structure. Multiple bracket structures are connected by dental wires passing through them to form a complete orthodontic appliance that can correct teeth. When the internal orthodontic appliance 1 is a functional appliance, the orthodontic contact surface and the peripheral mating surface are combined to form a complete wire structure. This wire structure is fixedly connected to the plastic base to form a complete orthodontic appliance that can correct teeth.

[0033] The internal orthodontic appliance 1 is a fixed orthodontic appliance, and the external orthodontic appliance 2 is a silicone appliance. The fixed orthodontic appliance includes brackets and wires. The side of the bracket that contacts the tooth to be treated is the orthodontic contact surface, and the remaining peripheral surfaces together form the peripheral mating surface. The inner surface 7 of the silicone appliance is recessed away from the labial side of the tooth and has several receiving slots 6 for the fixed orthodontic appliance to be partially embedded. After the bracket of the fixed orthodontic appliance is glued to the tooth to be treated and fixed by the wires, the silicone appliance is fitted onto the fixed orthodontic appliance. At this time, the multiple receiving slots 6 correspond one-to-one with the brackets, thereby realizing the positioning and installation of the silicone appliance and ensuring that it achieves the best orthodontic effect.

[0034] The silicone braces include labial / buccal guards 4 and lingual guards 5. The labial / buccal guards 4 and lingual guards 5 are connected, forming two independent, tooth-accommodating orthodontic brackets 3. The labial side of each orthodontic bracket 3 is the inner surface 7. When wearing the silicone braces, the upper and lower teeth to be treated can be inserted into the upper and lower orthodontic brackets 3 and bite into the silicone braces, thus ensuring that the silicone braces will not dislodge from the teeth to be treated during the treatment process.

[0035] The internal orthodontic appliance 1 is a functional appliance, and the external orthodontic appliance 2 is a silicone appliance. The functional appliance includes a plastic base and a wire. The wire is partially fixedly embedded in the plastic base. The inner surface 7 of the silicone appliance has a receiving groove 6 into which at least part of the outer peripheral mating surface of the wire can be inserted. The receiving groove 6 matches the structure of the wire. In use, the functional appliance is first worn on the teeth, and then the silicone appliance is positioned by matching the position of the wire with the receiving groove 6, ensuring the efficiency of simultaneous treatment with both internal and external appliances.

[0036] The internal orthodontic appliance 1 is a fixed or functional orthodontic appliance, and the external orthodontic appliance 2 is an invisible orthodontic appliance. The invisible orthodontic appliance is made by vacuum heat pressing a diaphragm onto the fixed orthodontic appliance.

[0037] The invisible aligner and the fixed aligner can be detachably connected.

[0038] External braces 2 are made of silicone.

[0039] A method for fabricating a combined orthodontic appliance, used to fabricate a combined appliance, wherein the inner appliance 1 of the combined appliance is a fixed appliance or a functional appliance, and the outer appliance 2 is a silicone appliance. The fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires. The method is characterized by the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, the brackets and wires or plastic base and wires required for treatment are set on the completed three-dimensional model of the teeth in the design software; the number of brackets and the traction force or wire structure applied during subsequent treatment are obtained by the doctor based on the three-dimensional model of the teeth and the patient's individual facial structure analysis.

[0040] S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Match the corresponding silicone orthodontic appliance based on the three-dimensional tooth model generated in S3.

[0041] During the matching process, the corresponding silicone aligner shell needs to be constructed on the surface of the three-dimensional tooth model in S3 to obtain the mold of the silicone aligner. Then, the silicone mold is directly generated using 3D printing technology. Finally, silicone material is poured into the mold, and after trimming, the finished silicone aligner that fits the internal aligner 1 is obtained.

[0042] Specifically, when the internal orthodontic appliance 1 is a fixed appliance, the doctor first attaches the brackets to the labial side of the patient's teeth one by one and threades the wires, and then puts on the silicone appliance.

[0043] When the internal orthodontic appliance 1 is a functional appliance, the doctor will first place the functional appliance on the teeth in the mouth, and then place the silicone appliance on.

[0044] A method for fabricating a combined orthodontic appliance, used to fabricate a combined appliance, wherein the inner appliance 1 of the combined appliance is a fixed appliance or an invisible appliance, and the outer appliance 2 is an invisible appliance. The fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires. The method includes the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, in the design software, the brackets and wires or plastic base and wire structure required for treatment are set on the completed three-dimensional tooth model. S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Use the three-dimensional tooth model in S3 to heat-press the film to form an invisible aligner covering the three-dimensional tooth model, namely the external aligner 2; When the internal orthodontic appliance 1 is a fixed appliance, the brackets, wires, indirect bonding guide, and clear aligner must be provided to the dentist. The dentist first uses the indirect bonding guide to bond the brackets to the tooth surface and thread the wires, and then the clear aligner is worn.

[0045] In step S3, an indirect bonding guide plate adapted to the three-dimensional tooth model also needs to be printed.

[0046] It should be noted that the indirect bonding guide plate transforms the bracket from "free hand bonding inside the mouth" to a positioning mold of "precise pre-positioning outside the mouth and efficient transfer inside the mouth". This is existing technology, and its specific structure and working principle will not be elaborated here.

[0047] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable those skilled in the art to understand the content of the present invention and implement it. They should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A combined orthodontic appliance, characterized in that: It includes an internal orthodontic appliance and an external orthodontic appliance; the internal orthodontic appliance includes an orthodontic contact surface that contacts the labial side of the tooth to be orthodontized and a peripheral mating surface; the external orthodontic appliance includes an inner surface facing the labial side of the tooth to be orthodontized; the external orthodontic appliance covers the internal orthodontic appliance, and the internal orthodontic appliance is at least partially embedded in the external orthodontic appliance; when wearing the orthodontic appliance, the inner surface of the external orthodontic appliance contacts the peripheral mating surface on the internal orthodontic appliance.

2. The orthodontic appliance according to claim 1, characterized in that: The internal orthodontic appliance is a fixed or functional orthodontic appliance, and the external orthodontic appliance is an invisible or silicone orthodontic appliance.

3. The orthodontic appliance according to claim 1, characterized in that: The size of the orthodontic contact surface is matched to the labial surface of the tooth to be treated.

4. The orthodontic appliance according to claim 1, characterized in that: The outer peripheral edge of the corrective contact surface is connected to the outer peripheral edge of the outer peripheral mating surface.

5. The orthodontic appliance according to claim 2, characterized in that: The internal orthodontic appliance is a fixed orthodontic appliance, and the external orthodontic appliance is a silicone orthodontic appliance. The fixed orthodontic appliance includes brackets and wires. The side of the bracket that fits against the tooth to be treated is the orthodontic contact surface, and the remaining peripheral surfaces together form the peripheral mating surface. The inner surface of the silicone orthodontic appliance is recessed in a direction away from the labial side of the tooth and has several receiving slots for the fixed orthodontic appliance to be partially embedded.

6. The orthodontic appliance according to claim 5, characterized in that: The silicone orthodontic appliance includes a labial / cheek block and a lingual block. The labial / cheek block and the lingual block are connected, and the two form two non-interfering orthodontic slots that can accommodate the teeth. The side of the orthodontic slot facing the labial side of the teeth is the inner side.

7. The orthodontic appliance according to claim 2, characterized in that: The internal orthodontic appliance is a functional orthodontic appliance, and the external orthodontic appliance is a silicone orthodontic appliance. The functional orthodontic appliance includes a plastic base and a steel wire. The steel wire is partially fixedly embedded in the plastic base. The inner side of the silicone orthodontic appliance has a receiving groove for at least part of the outer peripheral mating surface of the steel wire to be embedded in. The receiving groove matches the structure of the steel wire.

8. A method for manufacturing a combined orthodontic appliance, used to manufacture the combined appliance of claim 1, wherein the inner appliance of the combined appliance is a fixed appliance or a functional appliance, the outer appliance is a silicone appliance, the fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires, characterized in that: Includes the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, in the design software, the brackets and wires required for treatment or the plastic base and wires are set on the completed three-dimensional tooth model. S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Match the corresponding silicone orthodontic appliance based on the three-dimensional tooth model generated in S3.

9. A method for manufacturing a combined orthodontic appliance, used to manufacture the combined appliance of claim 1, wherein the inner appliance of the combined appliance is a fixed appliance or an invisible appliance, the outer appliance is an invisible appliance, the fixed appliance includes brackets and wires, and the functional appliance includes a plastic base and wires, characterized in that: Includes the following steps: S1: Obtain dental data from the patient's mouth, construct a three-dimensional model of the teeth based on the data, and formulate a dental treatment plan based on the data; S2: Based on the above orthodontic treatment plan, in the design software, the brackets and wires or plastic base and wire structure required for treatment are set on the completed three-dimensional tooth model. S3: Use 3D printing technology to create a three-dimensional model of a tooth that includes structural information about the brackets and wires or the plastic base and wires. S4: Using the three-dimensional tooth model from S3, a heat-pressed film is used to form an invisible aligner, i.e., an external aligner, that covers the three-dimensional tooth model.

10. The method for manufacturing a combined orthodontic appliance according to claim 9, characterized in that: In step S3, an indirect bonding guide plate adapted to the three-dimensional tooth model also needs to be printed.

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