Inner crown retention structure and correction device

Abstract

The utility model relates to the field of orthodontics, and particularly discloses an inner crown retention structure and an orthodontic device.The inner crown retention structure comprises a ring body used for being arranged on a tooth body in a sleeving mode, a plurality of reinforcing grooves are formed in the inner side wall of the ring body, an adhesive layer is further arranged on the inner wall of the ring body, and the reinforcing grooves are filled with the adhesive layer. The reinforcing groove is formed in the inner side wall of the ring body, the ring body is pasted and fixed to the tooth body through the adhesive layer in the using process, the adhesive layer can permeate into the reinforcing groove, contact between the adhesive layer and the ring body is improved, and then the connecting strength of the ring body and the tooth body can be effectively improved.

Description

Technical Field

[0001] The present application relates to the field of orthodontics, and in particular to an inner crown retention structure and a correction device. Background Art

[0002] The dental arch expander, also known as the dental arch expansion spiral, is mainly used to correct the bilateral or unilateral narrowing of the maxillary and mandibular dental arches. Its treatment principle is to place it in the appropriate part of the mouth, apply corrective force to the teeth and alveolar bone, and then expand the width and length of the maxillary and mandibular dental arches.

[0003] In the related art, the expander includes two groups of hyperbolic labial arches, with bases and fixing plates fixed at both ends of the hyperbolic labial arches respectively. The bases of the two hyperbolic labial arches are connected by screws, and the fixing plates are fixed on the teeth to be corrected on both sides of the oral cavity respectively. By rotating the screw to adjust the distance between the two bases, a corrective force can be applied to the teeth to be corrected, thereby achieving the purpose of correction.

[0004] In actual use, it is found that the expander needs to regularly adjust the distance between the two bases to achieve the purpose of adjusting the correction force. During the correction process, the position of the teeth will gradually change. After wearing it for a long time, the fixing plate will fall off the teeth. Summary of the invention

[0005] In a first aspect, the present application provides an inner crown retention structure, comprising a ring body for being sleeved on a tooth body, wherein a plurality of reinforcement grooves are provided on the inner side wall of the ring body, and an adhesive layer is also provided on the inner wall of the ring body, wherein the adhesive layer fills the reinforcement grooves.

[0006] By adopting the above technical solution, a glue layer is provided on the inner wall of the ring body, and during installation, the ring body can be fixed on the tooth body through the glue layer; at the same time, a plurality of reinforcement grooves are opened on the inner wall of the ring body, and the glue layer will penetrate into the reinforcement grooves, which can effectively increase the contact area between the glue layer and the ring body, thereby effectively increasing the connection strength between the ring body and the tooth body, and preventing the ring body and the tooth body from loosening.

[0007] Optionally, the reinforcement groove is formed on two side walls of the ring body corresponding to the inner and outer sides of the tooth body.

[0008] By adopting the above technical solution, the inner and outer sides of the ring body are subjected to greater forces during use. Arranging the reinforcement grooves on the inner and outer side walls of the ring body can effectively improve the connection strength between the ring body and the tooth body.

[0009] Optionally, the reinforcement grooves are configured as rectangular grooves evenly distributed on the inner wall of the ring body.

[0010] By adopting the above technical solution and setting the reinforcement groove as a rectangular groove, the adhesion of the adhesive layer in the reinforcement groove can be improved, thereby increasing the connection strength.

[0011] In the second aspect, the present application provides a correction device, including a hyperbolic labial arch, a base and the above-mentioned inner crown retaining structure, the base and the inner crown retaining structure are respectively fixed at the two ends of the hyperbolic labial arch, and the hyperbolic labial arch, the base and the inner crown retaining structure are each provided with two groups; a guide column is fixed on one of the bases on a side close to the other base, and a guide hole is opened on the other base corresponding to the guide column, and the guide column is slidably inserted into the guide hole; a bidirectional screw for adjusting the distance between the two bases is also provided between the two bases.

[0012] By adopting the above technical scheme, the inner crown retention structure is fixed on the hyperbolic labial arch. When the tooth body is corrected through the hyperbolic labial arch, the inner crown retention structure can improve the connection strength between the hyperbolic labial arch and the tooth body, and prevent the hyperbolic labial arch and the tooth body from falling off during the correction process; the guide column is fixed on the base on one side, and the guide column is inserted into the guide hole of the other base, which can effectively reduce the volume of the base and the guide column in the oral cavity and improve the wearing comfort; when in use, the distance between the two bases is adjusted by rotating the bidirectional screw, so as to apply the correction force to the tooth body to be corrected, which is convenient for use.

[0013] Optionally, it also includes an adjusting nut and an elastic member, wherein two adjusting nuts are provided and are respectively threadedly connected to the two ends of the bidirectional screw; an adjusting hole is opened at one end of the two bases close to each other corresponding to the adjusting nut, and the elastic member is sleeved on the two ends of the bidirectional screw, and the elastic member is respectively located on the side where the two adjusting nuts are away from each other, and the elastic member and the adjusting nut are respectively inserted into the corresponding adjusting holes.

[0014] By adopting the above technical solution, an adjusting nut and an elastic part are provided. When the bidirectional screw is rotated to apply a corrective force to the tooth body, the bidirectional screw will push the adjusting nuts at both ends to both sides. The bidirectional nut squeezes the elastic part, and a corrective force is applied to the bases on both sides through the elastic part. The force of the bidirectional screw will not directly act on the tooth body, and the corrective force is gentler. In addition, the elastic part can continuously apply a corrective force to the tooth body, which is convenient to use.

[0015] Optionally, a screwing portion is coaxially fixed to the middle of the bidirectional screw, a screwing hole is opened on the screwing portion along the radial direction of the bidirectional screw, and a plurality of the screwing holes are distributed along the circumferential direction of the bidirectional screw.

[0016] By adopting the above technical solution, a screwing hole is opened on the screwing part. When the bidirectional screw needs to be rotated to adjust the correction force, the bidirectional screw can be rotated by inserting a tool into the screwing rod, which is convenient for use.

[0017] Optionally, the base is detachably fixed on the hyperbolic labial bow.

[0018] By adopting the above technical solution, the base can be detachably installed on the hyperbolic labial arch. The hyperbolic labial arch needs to be customized according to the shape of the patient's oral cavity. The base can be set as a standard part. After the hyperbolic labial arch is customized, the base can be directly installed, which can reduce production costs and facilitate use.

[0019] Optionally, a fixing sleeve is fixed at a position of the hyperbolic labial bow corresponding to the base, and two ends of the base are respectively inserted into the two fixing sleeves.

[0020] By adopting the above technical solution, a fixing sleeve is set on the hyperbolic lip bow. When installing the base, it only needs to be inserted into the fixing sleeve. When the bidirectional screw applies a corrective force to the base, the base will be pushed to both sides, thereby pressing the base against the bottom of the fixing sleeve, so that the base cannot fall out, which is convenient for use.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. By providing a glue layer on the inner side wall of the ring body, the ring body can be fixed on the tooth body through the glue layer during installation. At the same time, a number of reinforcement grooves are opened on the inner side wall of the ring body, and the glue layer will penetrate into the reinforcement grooves, which can effectively increase the contact area between the glue layer and the ring body, thereby effectively improving the connection strength between the ring body and the tooth body, and preventing the ring body and the tooth body from loosening;

[0023] 2. By fixing the inner crown retention structure on the hyperbolic labial arch, when the tooth body is corrected through the hyperbolic labial arch, the inner crown retention structure can improve the connection strength between the hyperbolic labial arch and the tooth body, and prevent the hyperbolic labial arch and the tooth body from falling off during the correction process. The guide column is fixed on the base on one side, and the guide column is inserted into the guide hole of the other base, which can effectively reduce the volume of the base and the guide column in the oral cavity and improve the wearing comfort. When in use, the distance between the two bases is adjusted by rotating the bidirectional screw, so as to apply the correction force to the tooth body to be corrected, which is convenient for use;

[0024] 3. By setting the adjusting nut and the elastic part, when the bidirectional screw is rotated to apply the corrective force to the tooth body, the bidirectional screw will push the adjusting nuts at both ends to both sides, and the bidirectional nuts squeeze the elastic part, and the corrective force is applied to the bases on both sides through the elastic part. The force of the bidirectional screw will not directly act on the tooth body, and the corrective force is softer. In addition, the elastic part can continuously apply the corrective force to the tooth body, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure of the inner crown retention structure disclosed in Example 1 of the present application;

[0026] Figure 2 is a schematic diagram of the overall structure of the expander disclosed in Example 2 of the present application;

[0027] Figure 3 yes Figure 2 Magnified view of area A in the middle;

[0028] Figure 4 is a schematic diagram of the overall structure of the expander disclosed in Example 3 of the present application;

[0029] Figure 5 It is a cross-sectional view of the base of Example 3 of the present application.

[0030] Figure numerals: 1. inner crown retention structure; 11. ring body; 12. reinforcement groove; 2. hyperbolic lip bow; 3. base; 31. guide column; 32. guide hole; 33. adjustment hole; 4. bidirectional screw; 41. screwing part; 42. screwing hole; 43. adjustment nut; 44. elastic member; 5. fixing sleeve. DETAILED DESCRIPTION

[0031] Embodiment 1:

[0032] This application discloses an inner crown retention structure, referring to Figure 1 , including a ring body 11 for sleeved on the tooth body to be corrected, a reinforcement groove 12 is opened on the inner wall of the ring body 11, and the reinforcement groove 12 is a rectangular groove; the reinforcement groove 12 is opened on the inner wall of the ring body 11 located on both sides of the inner and outer sides of the tooth body, and a plurality of reinforcement grooves 12 are evenly distributed on the inner wall of the ring body 11. When fixing the ring body 11 to the tooth, it is necessary to brush special glue on the inner wall of the ring body 11, and the glue forms a glue layer on the inner wall of the ring body 11, and the glue layer will penetrate into the reinforcement groove 12 to improve the connection strength between the ring body 11 and the tooth body.

[0033] The implementation principle of an inner crown retention structure disclosed in Example 1 of the present application is: when correcting teeth, the ring body 11 needs to be fixed on the tooth body. By opening a reinforcement groove 12 on the inner wall of the ring body 11, after glue is applied to the inner wall of the ring body 11, the glue will penetrate into the reinforcement groove 12, which can effectively increase the contact area between the glue and the ring body 11, thereby improving the connection strength between the ring body 11 and the tooth body.

[0034] Embodiment 2:

[0035] Embodiment 2 of the present application discloses a correction device, referring to Figure 2 and Figure 3 , including a hyperbolic labial bow 2, a base 3 and the above-mentioned inner crown retaining structure 1, the base 3 and the inner crown retaining structure 1 are respectively integrally formed at the two ends of the hyperbolic labial bow 2, and the hyperbolic labial bow 2, the base 3 and the inner crown retaining structure 1 are each provided with two groups.

[0036] The base 3 is a cubic block, one of which is integrally formed with a guide post 31, which is located on a side surface close to the other base 3. Two guide posts 31 are symmetrically arranged, and a guide hole 32 is penetrated and opened at the position corresponding to the guide post 31 on the other base 3, and the guide post 31 is slidably inserted into the guide hole 32. A bidirectional screw 4 is arranged between the two guide posts 31 in a direction parallel to the axial direction of the guide post 31, and the two ends of the bidirectional screw 4 are respectively threadedly connected with the two bases 3. By rotating the bidirectional screw 4, the distance between the two bases 3 can be controlled, thereby adjusting the correction force on the tooth body.

[0037] A screwing portion 41 is coaxially provided in the middle of the bidirectional screw 4, and a screwing hole 42 is provided on the screwing portion 41 along the radial direction of the bidirectional screw 4, and a plurality of screwing holes 42 are distributed along the circumferential direction. When the bidirectional screw 4 needs to be rotated, a tool can be inserted into the screwing hole 42 to drive the bidirectional screw 4 to rotate, which is convenient for use.

[0038] The implementation principle of a correction device disclosed in Example 2 of the present application is as follows: by integrally setting an inner crown retention structure 1 on the hyperbolic labial arch 2, the connection strength between the hyperbolic labial arch 2 and the tooth body can be improved, thereby preventing the hyperbolic labial arch 2 from falling off the tooth body during the correction process; fixing the guide column 31 on the base 3 on one side and inserting it into the guide hole 32 of the other base 3 can effectively reduce the volume of the base 3 and the guide column 31 in the oral cavity, thereby improving the wearing comfort; when in use, the distance between the two bases 3 is adjusted by rotating the bidirectional screw 4, thereby applying a correction force to the tooth body to be corrected, which is convenient for use.

[0039] Embodiment 3:

[0040] The difference between the implementation 3 of the present application and the implementation 2 is that, referring to Figure 4 and Figure 5 The base 3 and the hyperbolic labial bow 2 are detachably connected; a fixing sleeve 5 is fixed to one end of the hyperbolic labial bow 2 close to the base 3, the opening of the fixing sleeve 5 faces the side of the base 3, and the base 3 is inserted into the fixing sleeve 5. The hyperbolic labial bow 2 and the inner crown retention structure 1 need to be customized according to the shape of the patient's oral cavity, while the base 3 can be set as a standard part. During processing, only the hyperbolic labial bow 2 and the inner crown retention structure 1 need to be processed, which can effectively reduce the processing cost.

[0041] An adjusting nut 43 is screwed on both ends of the bidirectional screw rod 4, and an adjusting hole 33 that slides with the adjusting nut 43 is opened at the position of the base 3 corresponding to the adjusting nut 43. The adjusting nut 43 is inserted in the adjusting hole 33, and the adjusting hole 33 limits the rotation of the adjusting nut 43; an elastic member 44 is respectively sleeved on both ends of the bidirectional screw rod 4, and the elastic member 44 is configured as a compression spring. The elastic member 44 displaces one end of the two adjusting nuts 43 away from each other, and the two ends of the elastic member 44 respectively abut against the bottom of the adjusting hole 33 and the adjusting nut 43.

[0042] When the bidirectional screw 4 is rotated to apply a corrective force to the tooth body, the bidirectional screw 4 will push the adjusting nuts 43 at both ends to both sides, and the bidirectional nuts will squeeze the elastic parts 44, and the corrective force will be applied to the bases 3 on both sides through the elastic parts 44. The force of the bidirectional screw 4 will not directly act on the tooth body, and the corrective force will be softer. In addition, the elastic parts 44 can continuously apply a corrective force to the tooth body, which is convenient to use.

[0043] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An inner crown retention structure, characterized in that: include: A ring body (11) is used for being sleeved on a tooth body, wherein a plurality of reinforcement grooves (12) are provided on the inner side wall of the ring body (11), and a glue layer is also provided on the inner wall of the ring body (11), wherein the glue layer fills the reinforcement grooves (12).

2. The inner crown retention structure according to claim 1, characterized in that: The reinforcement groove (12) is formed on two side walls of the ring body (11) corresponding to the inner and outer sides of the tooth body.

3. The inner crown retention structure according to claim 1, characterized in that: The reinforcement grooves (12) are configured as rectangular grooves evenly distributed on the inner wall of the ring body (11).

4. A correction device, characterized in that: include: A hyperbolic labial arch (2), a base (3) and an inner crown retaining structure (1) as described in any one of claims 1 to 3 above, wherein the base (3) and the inner crown retaining structure (1) are respectively fixed at two ends of the hyperbolic labial arch (2), and the hyperbolic labial arch (2), the base (3) and the inner crown retaining structure (1) are each provided with two groups; a guide column (31) is fixed on one of the bases (3) on a side close to the other base (3), and a guide hole (32) is provided on the other base (3) corresponding to the guide column (31), and the guide column (31) is slidably inserted into the guide hole (32); a bidirectional screw (4) for adjusting the distance between the two bases (3) is also provided between the two bases (3).

5. A correction device according to claim 4, characterized in that: It also comprises an adjusting nut (43) and an elastic member (44), wherein two adjusting nuts (43) are provided and are respectively threadedly connected to the two ends of the bidirectional screw (4); an adjusting hole (33) is provided at one end of the two bases (3) close to each other, corresponding to the adjusting nut (43); the elastic member (44) is sleeved on the two ends of the bidirectional screw (4); the elastic member (44) is respectively located on the side where the two adjusting nuts (43) are away from each other; and the elastic member (44) and the adjusting nut (43) are respectively inserted into the corresponding adjusting hole (33).

6. A correction device according to claim 4, characterized in that: A screwing portion (41) is coaxially fixed in the middle of the bidirectional screw (4), and a screwing hole (42) is formed on the screwing portion (41) along the radial direction of the bidirectional screw (4). A plurality of screwing holes (42) are distributed along the circumferential direction of the bidirectional screw (4).

7. A correction device according to claim 4, characterized in that: The base (3) is detachably fixed on the hyperbolic lip bow (2).

8. A correction device according to claim 7, characterized in that: A fixing sleeve (5) is fixed to the position of the hyperbolic lip bow (2) corresponding to the base (3), and two ends of the base (3) are respectively inserted into the two fixing sleeves (5).

Images