Back tooth self-ligating bracket

Abstract

The utility model discloses a back tooth self-ligating bracket which comprises a bottom plate, a bracket body and a lock cover, one side of the bottom plate is used for bonding a tooth surface, the bracket body is mounted on the other side of the bottom plate, and an arch wire groove is formed in the bracket body; the lock cover covers an opening of the arch wire groove, the bracket body and one side face, far away from the bottom plate, of the lock cover and two end faces, in the vertical direction, of the bracket body and the lock cover are arc-shaped, and the two sides, in the extending direction of the arch wire groove, of the bracket body and the lock cover are planes; the bracket body is located at the opening position of the arch wire groove in a sliding mode, and the bracket body is provided with a locking assembly used for limiting the sliding position of the locking cover. The bracket has the effect of improving the operation convenience and the operation efficiency of a doctor on the bracket.

Description

Technical Field

[0001] The present invention relates to the field of dental medicine, in particular to a self-locking bracket for posterior teeth. Background Art

[0002] At present, with the popularization and promotion of orthodontics, orthodontic treatment is increasingly accepted by the public. Among them, posterior teeth self-ligating brackets are an important part of self-ligating bracket correction technology. Posterior teeth self-ligating brackets are also called lingual brackets.

[0003] Currently, it is common to design brackets to be spherical as a whole to improve comfort. Such brackets look relatively smooth, but in actual clinical operation, due to the overall spherical shape, it is difficult for doctors to clamp the brackets during operation, which greatly increases the doctor's operation time and difficulty. Summary of the Invention

[0004] In order to improve the convenience and efficiency of doctors in operating brackets, the present application provides a self-ligating bracket for posterior teeth.

[0005] This application provides a self-ligating bracket for posterior teeth, which adopts the following technical solution:

[0006] A self-locking bracket for posterior teeth, comprising a base plate, a bracket body and a locking cover, wherein one side of the base plate is used for bonding the tooth surface, the bracket body is installed on the other side of the base plate, and an archwire slot is provided on the bracket body; the locking cover is arranged at the opening of the archwire slot, and the side surfaces of the bracket body and the locking cover away from the base plate and the two end surfaces in the vertical direction are all arc-shaped, and the two sides of the bracket body and the locking cover in the extension direction of the archwire slot are flat; the locking cover is slidable, and the bracket body is located at the opening position of the archwire slot, and the bracket body is equipped with a locking assembly for limiting the sliding position of the locking cover.

[0007] By adopting the above technical solution, since both sides of the bracket body and the locking cover are flat, the doctor can clamp the entire bracket more stably in actual clinical operation; and the other surfaces of the bracket body and the locking cover are arc-shaped, thus ensuring the comfort of the tongue in the oral cavity.

[0008] Preferably, the archwire slot opens vertically upward and is located on one side of the bracket body, a sliding portion is provided on the other side of the bracket body, and the locking cover is provided with a sliding groove, and the locking cover is slidably mounted on the sliding portion through the sliding groove.

[0009] By adopting the above technical solution, since the archwire slot is vertically facing upwards, it is more convenient to place the archwire into the archwire slot for the posterior self-ligating bracket.

[0010] Preferably, the locking assembly includes a mounting block and a pair of elastic sheets, the sliding portion is provided with a mounting groove at one end of the groove bottom near the sliding groove, and the mounting block is clamped to the sliding portion through the mounting groove; the two elastic sheets are elastically connected to the mounting block at one end of the groove bottom near the sliding groove; the lock cover is located at the groove bottom of the sliding groove and is provided with a limiting groove extending in the sliding direction of the lock cover, and the limiting groove includes a connected clamping groove and a transition groove, the clamping groove and the transition groove are sequentially arranged in the sliding direction of the lock cover, and the width of the clamping groove is greater than the width of the transition groove; when the lock cover slides to the position corresponding to the archwire slot, the elastic sheet is in a natural state and is clamped in the clamping groove.

[0011] By adopting the above technical solution, when the locking cover needs to be slid to open the archwire slot, the locking cover is toggled. During the sliding process of the locking cover, the elastic sheet can be deformed so that the elastic sheet leaves the positioning slot and enters the transition slot, so that when the locking cover is toggled, the elastic action of the elastic sheet allows the locking cover to remain on the bracket body and will not fall into the oral cavity; and when the locking cover is in the locked state, the elastic sheet is in a natural state rather than a deformed state, so that it is not easy to deform and fail when it is in the locked state for a long time.

[0012] Preferably, a pair of the locking slots are provided, one of the locking slots is an unlocking slot and the other of the locking slots is a locking slot, and the unlocking slot and the locking slot are respectively provided at both ends of the transition slot; when the elastic sheet is engaged in the unlocking slot, the locking cover leaves the arch wire slot; when the elastic sheet is engaged in the locking slot, the locking cover is provided on the arch wire slot.

[0013] By adopting the above technical solution, the sliding lock cover allows the elastic piece to be clamped in the unlocking slot to complete the opening of the arch wire slot, and the sliding lock cover allows the elastic piece to be clamped in the locking slot to complete the closing of the arch wire slot. The operation is convenient and the opening and closing of the arch wire slot are convenient.

[0014] Preferably, the sliding direction of the locking cover is inclined downward from the end of the bracket body away from the base plate toward the archwire slot; the side surface of the locking cover corresponding to the position of the archwire slot is flush with the notch of the archwire slot.

[0015] By adopting the above technical solution, since the bracket is a self-locking bracket for posterior teeth, the locking cover is installed in an inclined sliding manner, making it more convenient to operate the locking cover.

[0016] Preferably, a buckle groove is provided at a position of the bracket body facing the locking cover.

[0017] By adopting the above technical solution, when the lock cover needs to be opened, a tool such as a probe can be inserted into the buckle groove, and the lock cover can be opened by prying it lightly, providing operating space and facilitating use.

[0018] Preferably, an upper wing is provided on the upward side of the lock cover, and the upper wing is arc-shaped.

[0019] By adopting the above technical solution, the arrangement of the upper wing facilitates ligation, and since the upper wing is in an arc shape, the comfort of the patient can be improved.

[0020] Preferably, a sinking groove is provided on a side of the bottom plate away from the bracket body, and a plurality of bosses are provided on the bottom plate corresponding to the sinking groove.

[0021] By adopting the above technical solution, the side of the base plate close to the tooth surface is made into a mesh shape, which can further strengthen the bonding force between the bracket and the tooth surface.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. Since both sides of the bracket body and the locking cover are flat, the doctor can hold the entire bracket more stably during actual clinical operation; and the other surfaces of the bracket body and the locking cover are arc-shaped, which can ensure the comfort of the tongue in the mouth;

[0024] 2. The archwire slot is vertically upward, so it is more convenient to put the archwire into the archwire slot for posterior self-ligating brackets;

[0025] 3. The lock cover is installed in an inclined sliding manner, making it easier to operate the lock cover;

[0026] 4. The upper wing is designed to facilitate ligation, and its arc shape can improve patient comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is an exploded diagram of the overall structure of an embodiment of the present application.

[0029] Figure 3 It is a cross-sectional view of the overall structure of an embodiment of the present application.

[0030] Figure 4 Schematic diagram of the locking cover structure of an embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Base plate; 11. Sink; 12. Boss; 2. Bracket body; 21. Archwire slot; 22. Sliding portion; 221. Sliding slot; 222. Mounting slot; 223. Top block; 23. Buckle slot; 3. Lock cover; 31. Upper wing; 32. Sliding slot; 321. Sliding bar; 33. Limiting slot; 331. Positioning slot; 332. Transition slot; 333. Unlocking slot; 334. Locking slot; 4. Locking assembly; 41. Mounting block; 42. Elastic sheet. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-4 This application is described in further detail.

[0034] The present application embodiment discloses a self-ligating bracket for posterior teeth. Figure 1 and Figure 2 The posterior self-ligating bracket includes a base plate 1, a bracket body 2 and a locking cover 3. The base plate 1 is in an arc shape that matches the tooth surface. The inner arc surface of the base plate 1 is used to bond the tooth surface. The bracket body 2 is integrally formed and installed on the outer arc surface of the base plate 1. A recessed groove 11 is provided on one side of the inner arc surface of the base plate 1. A plurality of bosses 12 are evenly arranged in the corresponding recessed grooves 11 of the base plate 1; an archwire slot 21 is provided on one side of the bracket body 2 close to the base plate 1. The archwire slot 21 opens vertically upward, and the edge of the archwire slot 21 is chamfered to facilitate the insertion of the archwire; A sliding portion 22 is integrally formed on the side of the slot body 2 away from the base plate 1, and the sliding portion 22 is arranged at the upward end of the bracket body 2; an upper wing 31 is integrally formed on the upward side of the lock cover 3 and away from the base plate 1, and the upper wing 31 is arc-shaped; the lock cover 3 is provided with a sliding groove 32, and the lock cover 3 is slidingly installed on the sliding portion 22 through the sliding groove 32, and one end cover of the lock cover 3 in the sliding direction is arranged at the upper opening of the archwire slot 21; the bracket body 2 is installed with a locking assembly 4 for limiting the sliding position of the lock cover 3.

[0035] The side surface of the bracket body 2 and the locking cover 3 away from the base plate 1 and the two end surfaces in the vertical direction are all arc-shaped. The bracket body 2 and the locking cover 3 are flat on both sides in the extension direction of the archwire slot 21, so that the flat surfaces on both sides can facilitate the doctor's clamping while maintaining comfort.

[0036] Reference Figure 1 and Figure 2 The sliding portion 22 is provided with sliding grooves 221 on both sides in the extension direction of the archwire slot 21, and the sliding grooves 221 extend obliquely downward from the end of the bracket body 2 away from the base plate 1 toward the direction of the archwire slot 21; the opposite side walls of the lock cover 3 located in the sliding groove 32 are integrally formed with sliding bars 321, and the sliding bars 321 are slidably installed in the sliding grooves 221; so that the lock cover 3 can slide in the inclined direction; the bracket body 2 is provided with a buckle groove 23 at the position opposite to the lock cover 3, so that the lock cover 3 can be easily moved; the side surface of the lock cover 3 corresponding to the archwire slot 21 is flush with the notch of the archwire slot 21, so that the archwire is more stable in the archwire slot 21.

[0037] Reference Figure 2 and Figure 3 The locking assembly 4 includes a mounting block 41 and a pair of elastic sheets 42. A mounting groove 222 is provided in the middle of one end of the bottom of the sliding groove 32 of the sliding portion 22. One end of the mounting groove 222 is connected to the sliding groove 32, and the other end extends into the bracket body 2 and extends out of the bottom of the bracket body 2; the mounting block 41 is inserted into the mounting groove 222 and is close to one end of the sliding groove 32. The two elastic sheets 42 are elastically connected to one end of the bottom of the sliding groove 32 of the mounting block 41 at intervals. The two elastic sheets 42 are spaced apart and arranged perpendicular to the sliding direction of the lock cover 3; refer to Figure 3 and Figure 4 The locking cover 3 is located at the bottom of the sliding groove 32 and a limiting groove 33 is formed. The limiting groove 33 includes a pair of mutually connected positioning grooves 331 and a transition groove 332. The two positioning grooves 331 are respectively connected to the two end positions of the transition groove 332. The two positioning grooves 331 and the transition groove 332 are sequentially arranged in the sliding direction of the locking cover 3. The width of the positioning groove 331 is greater than the width of the transition groove 332. The end of the elastic piece 42 away from the mounting block 41 is clamped in the limiting groove 33. The two positioning grooves 331 and the transition groove 332 are respectively connected to the two end positions of the transition groove 332. 331 are respectively the unlocking slot 333 and the locking slot 334. When the lock cover 3 slides to the position corresponding to the archwire slot 21, the elastic sheet 42 is in a natural state and is clamped in the locking slot 334; when the lock cover 3 slides to a position away from the archwire slot 21, the elastic sheet 42 is also in a natural state and is clamped in the unlocking slot 333; thus, during the sliding process of the lock cover 3, the elastic sheet 42 can be deformed and clamped in the locking slot 334 or the unlocking slot 333, so as to achieve the opening or closing of the lock cover 3.

[0038] Reference Figure 3 The part of the mounting groove 222 located in the bracket body 2 is inserted with a top block 223, one end of the top block 223 abuts against the end of the mounting block 41 away from the sliding groove 32, and the other end extends to be flush with the outer wall of the bracket body 2; when the lock cover 3 is first installed, the elastic piece 42 can be placed in the mounting groove 222, and then after the sliding part 22 slides into the sliding groove 32, the mounting block 41 can be pushed by the top block 223, so that the elastic piece 42 is snapped into the locking groove 331, and finally the top block 223 is fixed by welding, so that the lock cover 3 can be smoothly installed.

[0039] The implementation principle of the self-ligating bracket for posterior teeth in the embodiment of the present application is as follows: when in use, the doctor clamps the bracket to the corresponding tooth through the two side planes of the bracket, and the side of the base plate 1 with the boss 12 is glued to the tooth surface, and the arch wire is inserted into the arch wire slot 21. Then, the locking cover 3 is moved so that the locking cover 3 slides to the position corresponding to the arch wire slot 21, thereby restricting the arch wire in the arch wire slot 21.

[0040] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A posterior tooth self-locking bracket, comprising a base plate (1), a bracket body (2) and a locking cover (3), wherein one side of the base plate (1) is used for bonding the tooth surface, the bracket body (2) is mounted on the other side of the base plate (1), and an archwire slot (21) is provided on the bracket body (2); the locking cover (3) is arranged at the opening of the archwire slot (21), and is characterized in that: The side surface of the bracket body (2) and the locking cover (3) away from the base plate (1) and both end surfaces in the vertical direction are arc-shaped, and the bracket body (2) and the locking cover (3) are flat on both sides in the extension direction of the archwire slot (21); the locking cover (3) slides and the bracket body (2) is located at the opening position of the archwire slot (21), and the bracket body (2) is installed with a locking assembly (4) for limiting the sliding position of the locking cover (3).

2. The self-ligating bracket for posterior teeth according to claim 1, characterized in that: The archwire slot (21) opens vertically upward and is located on one side of the bracket body (2); a sliding portion (22) is provided on the other side of the bracket body (2); the locking cover (3) is provided with a sliding slot (32); and the locking cover (3) is slidingly mounted on the sliding portion (22) via the sliding slot (32).

3. The self-ligating bracket for posterior teeth according to claim 2, characterized in that: The locking assembly (4) comprises a mounting block (41) and a pair of elastic sheets (42); a mounting groove (222) is provided at one end of the sliding portion (22) near the bottom of the sliding groove (32); the mounting block (41) is clamped to the sliding portion (22) through the mounting groove (222); the two elastic sheets (42) are elastically connected to one end of the mounting block (41) near the bottom of the sliding groove (32) at intervals; the locking cover (3) is provided at the bottom of the sliding groove (32) with a groove facing the locking cover ( 3) a limiting groove (33) extending in the sliding direction, the limiting groove (33) comprising a connected locking groove (331) and a transition groove (332), the locking groove (331) and the transition groove (332) being arranged in sequence in the sliding direction of the locking cover (3), the width of the locking groove (331) being greater than the width of the transition groove (332); when the locking cover (3) slides to a position corresponding to the archwire slot (21), the elastic sheet (42) is in a natural state and is locked in the locking groove (331).

4. The self-ligating bracket for posterior teeth according to claim 3, characterized in that: A pair of the locking slots (331) are provided, one of the locking slots (331) is an unlocking slot (333), and the other of the locking slots (331) is a locking slot (334), and the unlocking slot (333) and the locking slot (334) are respectively provided at the two end positions of the transition slot (332); when the elastic sheet (42) is engaged in the unlocking slot (333), the locking cover (3) leaves the arch wire slot (21); when the elastic sheet (42) is engaged in the locking slot (334), the locking cover (3) is covered on the arch wire slot (21).

5. The self-ligating bracket for posterior teeth according to claim 2, characterized in that: The sliding direction of the locking cover (3) is from the end of the bracket body (2) away from the base plate (1) and inclined downward toward the archwire slot (21); the side surface of the locking cover (3) corresponding to the position of the archwire slot (21) is flush with the notch of the archwire slot (21).

6. The self-ligating bracket for posterior teeth according to claim 2, characterized in that: The bracket body (2) is provided with a buckle groove (23) at a position facing the locking cover (3).

7. The self-ligating bracket for posterior teeth according to claim 1, characterized in that: An upper wing (31) is provided on the upward side of the locking cover (3), and the upper wing (31) is in an arc shape.

8. The posterior teeth self-ligating bracket according to claim 1, characterized in that: A sink groove (11) is provided on a side of the bottom plate (1) away from the bracket body (2), and a plurality of bosses (12) are provided on the bottom plate (1) corresponding to the sink groove (11).

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