A dual-lock orthodontic bracket

Abstract

The utility model discloses a kind of double lock piece orthodontic bracket, it includes bracket main body, first lock piece, second lock piece and lock piece, bracket main body is formed with the arch wire groove passing through bracket main body;First lock piece is movably connected in bracket main body top;Second lock piece is movably connected in first lock piece top;Lock piece is connected in one or more of the bracket main body or first lock piece or second lock piece;The width of the first lock piece is greater than second lock piece width, the arch wire groove width covered when first lock piece is in first position is greater than the arch wire groove width covered when second lock piece is in third position.The utility model is provided with two different width lock pieces on bracket, the width of groove is changed by moving different lock pieces, so as to be narrower groove in orthodontic bracket alignment leveling stage, it can be wider groove in fine adjustment stage, and it is more practical.

Description

Technical Field

[0001] This utility model relates to the field of dental orthodontic equipment, specifically a double-locking orthodontic bracket. Background Technology

[0002] Orthodontic brackets are an important component of fixed orthodontic technology. The archwire applies various types of corrective forces to the teeth through the orthodontic brackets. The main function of orthodontic brackets is to fix the archwire, so that the archwire can play a better role in transmitting corrective forces, thereby controlling the three-dimensional movement of the teeth and achieving the purpose of orthodontic treatment.

[0003] Because of the small size of brackets, orthodontists have difficulty applying ligatures. Self-ligating brackets have now been developed, which eliminate the need for ligatures by relying on the movement of pins or covers to hold the archwire in the archwire slot of the bracket.

[0004] The process of fixed orthodontic treatment with brackets is generally divided into several stages: "alignment and leveling, closing gaps, and fine adjustment". During the alignment and leveling process, the narrower mesiodistal width of the bracket grooves and the larger distance between adjacent brackets allow the archwire to swing at a greater angle within the bracket grooves. This results in a gentler initial orthodontic force and less friction as the bracket slides on the archwire, which helps to speed up the alignment process in the early stages of treatment. However, in the subsequent fine adjustment stage, the dentist needs to precisely control the teeth and minimize the swing of the archwire within the grooves. In this case, wider brackets have a greater advantage.

[0005] Chinese Patent 202121686874.9 discloses a self-locking structure for orthodontic brackets and an orthodontic bracket. The orthodontic bracket includes a bracket body with an archwire groove. The self-locking structure includes a self-locking groove at the top of the bracket body, a locking piece slidably connected to the self-locking groove, and an X-shaped elastic locking member disposed in the self-locking groove and cooperating with the locking piece for self-locking. When using this self-locking structure, the archwire is placed into the archwire groove, and then the locking piece is slid into the locking position of the self-locking groove to keep the archwire in the archwire groove.

[0006] Current orthodontic brackets cannot adjust the width of the two sides of the archwire groove. Utility Model Content

[0007] The purpose of this invention is to provide a double-layer locking plate holder, the groove of which can be switched between wide and narrow depending on the locking plate being closed. In clinical use, the narrower locking plate is closed during the alignment and leveling stage, and the wider locking plate is closed during the fine adjustment stage. Moreover, the switching process is simple and convenient to use.

[0008] The objective of this utility model is achieved through the following technical solution.

[0009] A double-locking orthodontic bracket, comprising

[0010] The bracket body has a wire groove that runs through it;

[0011] The first locking piece is movably connected to the top of the bracket body and moves between a first position where the archwire groove is covered and a second position where the archwire groove is not covered;

[0012] The second locking plate is movably connected to the top of the first locking plate and moves between a third position where the bow wire groove is covered and a fourth position where the bow wire groove is not covered.

[0013] A locking element, connected to one or more of the bracket body or the first locking piece or the second locking piece, and configured to selectively hold the first locking piece in a first position or a second position, and hold the second locking piece in a third position or a fourth position;

[0014] The width of the first locking plate is greater than the width of the second locking plate, and the width of the bow wire groove covered by the first locking plate when it is in the first position is greater than the width of the bow wire groove covered by the second locking plate when it is in the third position.

[0015] Preferably, the locking element includes:

[0016] The lock cylinder groove is vertically formed on the main body of the bracket;

[0017] Two resilient lock cylinders are provided and are detachably installed in the lock cylinder slot;

[0018] The first locking groove is disposed on the first locking piece and includes a first limiting groove for holding the first locking piece in a first position, a second limiting groove for holding the first locking piece in a second position, and a first transition groove connecting the first limiting groove and the second limiting groove.

[0019] The second locking groove is provided on the second locking piece and includes a third limiting groove for holding the second locking piece in a third position, a fourth limiting groove for holding the second locking piece in a fourth position, and a second transition groove connecting the third limiting groove and the fourth limiting groove.

[0020] Preferably, the middle part of the elastic lock cylinder is located in the first lock groove, and the top of the elastic lock cylinder is located in the second lock groove; the lateral width of the first limiting groove and the second limiting groove is greater than the distance between the two ends of the two elastic lock cylinders, and the lateral width of the first transition groove is less than the distance between the two ends of the two elastic lock cylinders; the lateral width of the third limiting groove and the fourth limiting groove is greater than the distance between the two ends of the two elastic lock cylinders, and the lateral width of the second transition groove is less than the distance between the two ends of the two elastic lock cylinders.

[0021] Preferably, the bracket body has a first sliding groove on both sides, and a first slider is provided on both sides of the first locking piece, with the first slider slidably connected to the first sliding groove.

[0022] Preferably, a limiting step is provided between the two first slide grooves, and a limiting part that cooperates with the limiting step is provided at the bottom of the first locking piece.

[0023] Preferably, the first locking piece is provided with a second sliding groove at the top, and the second locking piece is provided with second sliders on both sides, with the second sliders slidably connected to the second sliding groove.

[0024] Preferably, the first locking piece has a groove wall clearance notch near the end of the bow wire groove, and the bottom of the second locking piece has a groove wall, which is located in the groove wall clearance notch. When the second locking piece moves to the third position, the groove wall is flush with the bow wire groove wall.

[0025] Preferably, a square unlocking auxiliary groove is formed between the bracket body and the first and second locking plates, and the first locking plate is provided with a square unlocking auxiliary groove at the end away from the bow wire groove.

[0026] Preferably, the bracket body includes a bracket mother body and a bracket base plate, the bracket mother body is fixed on the bracket base plate, and the lock cylinder groove passes through the bracket mother body.

[0027] Compared with the prior art, this utility model has at least the following obvious advantages and effects:

[0028] 1. This utility model sets two locking pieces of different widths on the bracket. By moving the different locking pieces, the width of the groove can be changed, so that it can appear as a narrower groove during the orthodontic bracket alignment and leveling stage, and as a wider groove during the fine adjustment stage, thus making it more practical.

[0029] 2. The double-layer locking plate of this utility model can be controlled to slide separately, making it simple and convenient to operate in actual use. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of this utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the second locking piece of this utility model after locking;

[0032] Figure 3 This is a schematic diagram of the structure of the first locking piece of this utility model after it is locked.

[0033] Figure 4 This is an exploded view of the present invention;

[0034] Figure 5 This is a schematic diagram of the structure of the bracket body in this utility model;

[0035] Figure 6 This is a schematic diagram of the top structure of the first locking piece in this utility model;

[0036] Figure 7 This is a schematic diagram of the bottom structure of the first locking piece in this utility model;

[0037] Figure 8 This is a schematic diagram of the bottom structure of the second locking piece in this utility model;

[0038] List of components in this utility model

[0039] 1. Bracket body; 2. First locking piece; 3. Locking element; 4. Second locking piece; 11. Bracket base; 12. Bracket bottom plate; 13. Bow wire groove; 14. First sliding groove; 15. Limiting step; 16. Alignment unlocking auxiliary groove; 21. First slider; 22. Limiting part; 23. Second sliding groove; 24. Groove wall clearance notch; 25. Alignment unlocking auxiliary groove; 31. Lock cylinder groove; 32. Elastic lock cylinder; 33. First lock groove; 34. Second lock groove; 331. First limiting groove; 332. Second limiting groove; 333. First transition groove; 341. Third limiting groove; 342. Fourth limiting groove; 343. Second transition groove; 41. Second slider; 42. Groove wall. Detailed Implementation

[0040] Specific embodiments of the present invention have been described in conjunction with the accompanying drawings and the following description to teach those skilled in the art how to manufacture and use the present invention. For the purpose of teaching the principles of the invention, some conventional aspects have been simplified or omitted. Those skilled in the art should understand that variations derived from these embodiments fall within the scope of the present invention. Those skilled in the art should understand that the following features can be combined in various ways to form multiple variations of the present invention. Terms such as “upper,” “lower,” “left,” “right,” “middle,” and “a” used in the present invention are merely for clarity of description and are not intended to limit the scope of the present invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments described below, but is defined only by the claims and their equivalents.

[0041] like Figures 1 to 8As shown, this embodiment relates to a double-locking orthodontic bracket, which includes a bracket body 1, a first locking plate 2, a locking element 3, and a second locking plate 4. The bracket body 1 consists of an upper bracket base 11 and a lower bracket base plate 12. The bracket base plate 12 is used for clinical contact with the tooth surface. The bracket base 11 has an archwire groove 13 that penetrates through it. The first locking plate 2 is movably connected to the top of the bracket base 11 and moves between a first position where the archwire groove 13 is covered and a second position where the archwire groove 13 is not covered. The second locking plate 4 is movably connected to the top of the first locking plate 2 and moves between a third position where the archwire groove 13 is covered and a third position where the archwire groove 13 is not covered. The cover moves between four positions; the locking element 3 is connected to one or more of the bracket body 1, the first locking piece 2, or the second locking piece 4, and is configured to selectively hold the first locking piece 2 in a first position or a second position; hold the second locking piece 4 in a third position or a fourth position; the width of the first locking piece 2 is greater than the width of the second locking piece 4, and the width of the archwire groove 13 covered by the first locking piece 2 when it is in the first position is greater than the width of the archwire groove 13 covered by the second locking piece 4 when it is in the third position, so that it can exhibit a narrower groove (the second locking piece 4 covers the archwire groove 13) during the orthodontic bracket alignment and leveling stage, and a wider groove (the first locking piece 2 covers the archwire groove 13) during the fine adjustment stage.

[0042] In the embodiments of this application, the lock 3 includes a lock cylinder groove 31, an elastic lock cylinder 32, a first lock groove 33, and a second lock groove 34. The lock cylinder groove 31 is vertically formed on the bracket body 11 and penetrates the bracket body 11. There are two lock cylinder grooves 31, which are spaced apart. There are also two elastic lock cylinders 32. The lower half of the elastic lock cylinder 32 is received in the lock cylinder groove 31. The first lock groove 33 is provided on the first lock piece 2 and includes a first limiting groove 331 that keeps the first lock piece 2 in a first position, a second limiting groove 332 that keeps the first lock piece 2 in a second position, and a first transition groove 333 that connects the first limiting groove 331 and the second limiting groove 332. The second lock groove 34 is provided on the second lock piece 4 and includes a third limiting groove 341 that keeps the second lock piece 4 in a third position, a fourth limiting groove 342 that keeps the second lock piece 4 in a fourth position, and a second transition groove 343 that connects the third limiting groove 341 and the fourth limiting groove 342.

[0043] Specifically, the middle part of the elastic lock cylinder 32 is located in the first lock groove 33, and the top of the elastic lock cylinder 32 is located in the second lock groove 34; the lateral width of the first limiting groove 331 and the second limiting groove 332 is greater than the distance between the two ends of the two elastic lock cylinders 32, and the lateral width of the first transition groove 333 is less than the distance between the two ends of the two elastic lock cylinders 32; the lateral width of the third limiting groove 341 and the fourth limiting groove 342 is greater than the distance between the two ends of the two elastic lock cylinders 32, and the lateral width of the second transition groove 343 is less than the distance between the two ends of the two elastic lock cylinders 32.

[0044] In the embodiments of this application, the bracket body 11 has first sliding grooves 14 on both sides, and the first locking piece 2 has first sliders 21 on both sides, with the first sliders 21 slidably connected to the first sliding grooves 14. A limiting step 15 is provided between the two first sliding grooves 14, and the bottom of the first locking piece 2 has a limiting part 22 that cooperates with the limiting step 15.

[0045] In the embodiments of this application, the first locking plate 2 has a second sliding groove 23 at its top, and the second locking plate 4 has second sliders 41 on both sides, with the second sliders 41 slidably connected to the second sliding groove 23. The first locking plate 2 has a groove wall clearance notch 24 near the end of the bow wire groove 13, and the bottom of the second locking plate 4 has a groove wall 42 located within the groove wall clearance notch 24. When the second locking plate 4 moves to the third position, the groove wall 42 is flush with the groove wall of the bow wire groove 13. The groove wall clearance notch 24 is used to make room for the groove wall 42 portion of the second locking plate 4, ensuring that the final groove cross-sectional height remains constant regardless of whether the first locking plate 2 or the second locking plate 4 is closed.

[0046] In addition, a gingival unlocking auxiliary groove 16 is formed between the bracket body 1 and the first locking piece 2 and the second locking piece 4, which facilitates the insertion of a clinical bracket opener to move the first locking piece 2 and the second locking piece 4 in opposite directions; the end of the first locking piece 2 away from the archwire groove 13 is provided with a gingival unlocking auxiliary groove 25, which facilitates the insertion of a clinical bracket opener to open the first locking piece 2.

[0047] Installation instructions for this utility model

[0048] 1. Insert the second locking piece 4 into the first locking piece 2 along the second sliding groove 23;

[0049] 2. Place the first locking piece 2 into the bracket body 11 along the first sliding groove 14;

[0050] 3. Push the resilient lock cylinder 32 from the side of the bracket body 11 near the bracket bottom plate 12 into the lock cylinder groove 31;

[0051] 4. Weld the bracket body 11 to the bracket base plate 12 to complete the assembly.

[0052] Instructions for use of this utility model:

[0053] 1. Apply a pretreatment agent to the tooth surfaces to be bonded;

[0054] 2. Apply adhesive to the base plate 12 of the bracket;

[0055] 3. Place the bracket body 1 on the patient's tooth surface, with the bracket base plate 12 fitting against the tooth surface and curing. The bracket body 1 is now bonded (e.g., ...). Figure 1 (as shown);

[0056] 4. In the early stage of clinical correction, the first locking plate 4 is closed (moved to the third position), and the second locking plate 2 is in the unlocked state (in the second position). At this time, the width of the bracket groove is relatively narrow, and the corrective force is gentle, which is conducive to accelerating the alignment rate (e.g., Figure 2 (as shown);

[0057] 5. In the later fine-tuning stage, the first locking piece 2 can be closed (moved to the first position) based on the previous step, increasing the width of the formed groove, which is beneficial for the dentist to control the teeth during the fine-tuning stage (e.g., Figure 3 (As shown).

[0058] As those skilled in the art will readily conceive, any modifications, equivalent substitutions, improvements, etc., made using the concept and principles of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A double-locking orthodontic bracket, characterized in that, It includes The bracket body has a bow wire groove that runs through it; The first locking piece is movably connected to the top of the bracket body and moves between a first position where the archwire groove is covered and a second position where the archwire groove is not covered; The second locking plate is movably connected to the top of the first locking plate and moves between a third position where the bow wire groove is covered and a fourth position where the bow wire groove is not covered. A locking element, connected to one or more of the bracket body or the first locking piece or the second locking piece, and configured to selectively hold the first locking piece in a first position or a second position, and hold the second locking piece in a third position or a fourth position; The width of the first locking plate is greater than the width of the second locking plate, and the width of the bow wire groove covered by the first locking plate when it is in the first position is greater than the width of the bow wire groove covered by the second locking plate when it is in the third position.

2. The double-locking orthodontic bracket according to claim 1, characterized in that, The locking element includes: The lock cylinder groove is vertically formed on the main body of the bracket; Two resilient lock cylinders are provided and are detachably installed in the lock cylinder slot; The first locking groove is disposed on the first locking piece and includes a first limiting groove for holding the first locking piece in a first position, a second limiting groove for holding the first locking piece in a second position, and a first transition groove connecting the first limiting groove and the second limiting groove. The second locking groove is provided on the second locking piece and includes a third limiting groove for holding the second locking piece in a third position, a fourth limiting groove for holding the second locking piece in a fourth position, and a second transition groove connecting the third limiting groove and the fourth limiting groove.

3. The double-locking orthodontic bracket according to claim 2, characterized in that, The middle part of the elastic lock cylinder is located in the first lock groove, and the top of the elastic lock cylinder is located in the second lock groove; the lateral width of the first limiting groove and the second limiting groove is greater than the distance between the two ends of the two elastic lock cylinders, and the lateral width of the first transition groove is less than the distance between the two ends of the two elastic lock cylinders; the lateral width of the third limiting groove and the fourth limiting groove is greater than the distance between the two ends of the two elastic lock cylinders, and the lateral width of the second transition groove is less than the distance between the two ends of the two elastic lock cylinders.

4. The double-locking orthodontic bracket according to claim 1, characterized in that, The bracket body has a first sliding groove on both sides, and a first slider is provided on both sides of the first locking piece. The first slider is slidably connected to the first sliding groove.

5. The double-locking orthodontic bracket according to claim 4, characterized in that, A limiting step is provided between the two first slides, and a limiting part that cooperates with the limiting step is provided at the bottom of the first locking piece.

6. The double-locking orthodontic bracket according to claim 1, characterized in that, The first locking plate is provided with a second sliding groove at its top, and the second locking plate is provided with second sliders on both sides, with the second sliders slidably connected to the second sliding groove.

7. The double-locking orthodontic bracket according to claim 6, characterized in that, The first locking piece has a groove wall clearance notch near the end of the bow wire groove, and the bottom of the second locking piece has a groove wall, which is located in the groove wall clearance notch. When the second locking piece moves to the third position, the groove wall is flush with the bow wire groove wall.

8. The double-locking orthodontic bracket according to claim 1, characterized in that, A locking auxiliary groove is formed between the bracket body and the first and second locking plates, and the first locking plate is provided with a locking auxiliary groove at the end away from the bow wire groove.

9. The double-locking orthodontic bracket according to claim 2, characterized in that, The bracket body includes a bracket mother body and a bracket base plate. The bracket mother body is fixed on the bracket base plate, and the lock cylinder groove passes through the bracket mother body.

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