Self-ligating bracket with variable groove

Abstract

The utility model belongs to the technical field of orthodontics, and discloses a self-ligating bracket with a variable groove, which comprises a bracket matrix and a locking plate movably clamped on the bracket matrix, an arch wire groove is transversely arranged in the middle of the bracket matrix, and a round wire or a square wire can penetrate through the arch wire groove in the orthodontics process; a movable block used for changing the space of the arch wire groove is arranged on the inner wall of the locking piece. According to the utility model, the integrally formed movable block is arranged on the inner wall of the locking plate, and the movable block can change the space of the arch wire groove in the locking process of the locking plate and the bracket parent body, so that the arch wire groove can press the arch wire, thereby adapting to arch wires with different thicknesses, flexibly adjusting the correction force and reducing the risk that the rotation of the arch wire is out of control.

Description

Technical Field

[0001] This utility model belongs to the field of orthodontic technology, specifically a self-ligating bracket with variable grooves, and more particularly relates to a self-ligating bracket that can dynamically adjust the effective space of the groove according to the treatment stage and the type of archwire used. Background Technology

[0002] In traditional orthodontic treatment, brackets are devices fixed to the surface of the teeth and used in conjunction with archwires. By applying appropriate force, they move the teeth to correct their alignment and occlusion. Self-ligating brackets, as an improvement on traditional brackets, have been widely used in recent years because they do not require ligatures or elastic bands to fix the archwire. They offer advantages such as ease of operation, low friction, and short treatment cycles.

[0003] However, existing self-locking brackets still have some shortcomings:

[0004] Fixed groove sizes make it difficult to meet personalized needs: Different patients have different tooth shapes and orthodontic plans, requiring different groove sizes to accommodate archwires of varying thicknesses. However, the fixed groove sizes of existing self-ligating brackets make it difficult to meet personalized needs, limiting their applicability and treatment effectiveness.

[0005] Inability to flexibly adjust orthodontic force: During orthodontic treatment, the magnitude and direction of the orthodontic force need to be constantly adjusted according to the movement of teeth. However, the groove size of existing self-ligating brackets is fixed, making it difficult to flexibly adjust the orthodontic force, which affects the treatment effect and efficiency.

[0006] There is a risk of uncontrolled archwire rotation: Existing self-ligating brackets have limited ability to control archwire rotation, which poses a risk of uncontrolled archwire rotation. This may cause the tooth movement direction to deviate from the expected direction, affecting the treatment outcome.

[0007] To address the aforementioned issues, this invention proposes a self-locking bracket with a variable groove. By designing a structure that allows for adjustable groove width, the groove size can be flexibly adjusted to meet the personalized needs of different patients and at different treatment stages, thereby improving treatment effectiveness and efficiency. Utility Model Content

[0008] The purpose of this invention is to provide a self-locking bracket with a variable groove to solve the problem that the groove space of existing self-locking brackets is fixed and cannot be dynamically adjusted according to treatment needs.

[0009] The technical solution adopted in this utility model is as follows:

[0010] A self-ligating bracket with variable groove includes a bracket body and a locking piece movably engaged on the bracket body. The bracket body has a transverse archwire groove in the middle for the passage of round or square wires during orthodontic treatment. The inner wall of the locking piece has a movable block for changing the space of the archwire groove.

[0011] Preferably, the movable block is designed such that when the locking plate is closed, its surface facing the bowwire groove can partially or completely occupy the space above the bowwire groove according to the size and shape of the bowwire inserted into the bowwire groove, thereby changing the effective depth and / or width of the bowwire groove, and realizing active pressing of the bowwire or forming a specific mating relationship.

[0012] Preferably, there are two movable blocks, symmetrically arranged on both sides of the locking plate, and integrally formed with the locking plate. This symmetrical design helps to apply force evenly to the bowwire, reducing tilting or rotation caused by uneven force on the bowwire.

[0013] Preferably, the movable block is an L-shaped hook for tightly engaging with the T-shaped locking part on the bracket body. This L-shaped structure not only enhances the reliability of locking, but its specifically shaped inner surface can also form effective surface contact with the square or rectangular bowwire during locking, which is beneficial for the accurate expression of torque.

[0014] Preferably, the bracket body has symmetrical side edges on both sides, the inner sidewall of the side edge has a sliding groove, and the locking piece has stepped protrusions on both sides that match the sliding groove.

[0015] Preferably, the bracket body has a T-shaped locking part located in the middle of the two sides, and the front of the T-shaped locking part has a protrusion.

[0016] Preferably, the middle part of the protrusion is arc-shaped and protruding, and its tail is provided with a hanging groove.

[0017] Preferably, a stop block is provided in the middle of the inner wall of the locking piece, and a roller is provided between the stop block and the movable block.

[0018] Preferably, the roller is made of an elastic material. For example, polyetheretherketone (PEEK) or similar medical polymers with good elasticity and abrasion resistance are used to ensure the smoothness and durability of the locking mechanism.

[0019] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:

[0020] 1. This utility model features an integrally formed movable block on the inner wall of the locking plate. During the locking process between the locking plate and the bracket body, the movable block can intelligently change the spatial state of the archwire groove according to the archwire size and treatment needs. This allows it to not only compress the archwire but also form different mechanical modes, from low-friction sliding to high-precision control. This adapts to archwires of different thicknesses and cross-sectional shapes, flexibly adjusts the expression of corrective force, and reduces the risk of uncontrolled archwire rotation.

[0021] 2. By setting the movable block into a specific hook shape, this utility model can strengthen the connection between the locking plate and the bracket body, making it more secure and reliable. On the other hand, its working surface can make the locking plate bear force evenly and form effective surface contact with the square / rectangular archwire, ensuring that it is parallel to the bottom surface of the groove or forms a preset angle when closed, resulting in more accurate dimensions and more efficient torque transmission. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a self-locking bracket with variable grooves;

[0023] Figure 2 A schematic diagram of the structure of the bracket body in a self-locking bracket with variable grooves;

[0024] Figure 3 This is a schematic diagram of the locking piece in a self-locking bracket with a variable groove.

[0025] Figure 4 A side view of a locking piece in a self-locking bracket with a variable groove;

[0026] Figure 5 This is a left view of a self-locking bracket with a variable groove.

[0027] In the diagram: 1. Bracket body; 2. Locking plate; 11. Adhesive plate; 12. Bow wire groove; 13. T-shaped locking part; 14. Side; 15. Protrusion; 21. Movable block; 22. Roller; 23. Stop block; 24. Step protrusion. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0029] Reference Figure 1-5 A self-locking bracket with a variable groove includes a bracket body 1 and a locking piece 2 that is movably engaged on the bracket body 1.

[0030] The bottom of the bracket body 1 is provided with an adhesive plate 11, which is used to adhere the entire bracket to the patient's tooth surface during use.

[0031] The bracket body 1 has a transverse archwire groove 12 in the middle for the passage of round or square wires during orthodontic treatment. The inner wall of the locking piece 2 has movable blocks 21 for changing the effective space of the archwire groove 12. Two movable blocks 21 are symmetrically arranged on both sides of the locking piece 2 and are integrally formed with it, ensuring structural stability and production consistency. The movable blocks 21 are L-shaped hooks, which strengthen the connection between the locking piece 2 and the bracket body 1, making it more secure and reliable. Furthermore, their inner surface (working surface) facing the archwire groove 12 is precisely designed to ensure even force distribution on the locking piece 2. When the locking piece is closed, this working surface can interact specifically with the archwire depending on its type. For example, for square archwires, it can form a close face-to-face contact to transmit torque; for round archwires, it will form a line contact or maintain a small gap to facilitate sliding. In the closed state, it is parallel to the bottom surface of the groove or forms a specific angle, resulting in more precise dimensions.

[0032] The bracket body 1 has symmetrical side edges 14 on both sides. The inner side wall of the side edge 14 has a sliding groove. The locking piece 2 has stepped protrusions 24 on both sides that match the sliding groove. The locking piece 2 is slidably disposed in the sliding groove through the stepped protrusions 24 and can slide back and forth to open or close the bow wire groove 12.

[0033] The bracket body 1 has a T-shaped locking part 13 located in the middle of the two sides 14, and a protrusion 15 is provided on the front of the T-shaped locking part 13. The middle part of the protrusion 15 is arc-shaped and the tail is provided with a hanging groove.

[0034] A stop 23 is also provided in the middle of the inner wall of the locking plate 2, and a roller 22 is provided between the stop 23 and the movable block 21. The roller 22 is made of an elastic material, such as polyetheretherketone (PEEK), which has good biocompatibility, wear resistance and moderate elasticity, ensuring the long-term stability and smooth operation of the locking device.

[0035] When the locking plate 2 and the bracket body 1 are locked together, the roller 22 moves forward past the middle of the protrusion 15 to lock them together. At this time, the movable block 21 enters the space above the bow wire groove 12 and plays its role according to the bow wire condition. When the locking plate 2 is opened, force is applied to a specific area of ​​the locking plate using a special tool. The roller 22 moves backward past the middle of the protrusion 15 to the rear, and the locking plate 2 and the bracket body 1 are opened. At the same time, the hanging groove at the rear of the protrusion 15 can limit the excessive movement of the roller 22 and prevent the locking plate 2 from separating from the bracket body 1.

[0036] The working principle of this utility model:

[0037] This utility model provides an integrally formed movable block 21 on the inner wall of the locking piece 2. During the locking process between the locking piece 2 and the bracket body 1, the movable block 21 can change the space of the bow wire groove 12.

[0038] In the early stages of orthodontic treatment, a round wire is used to pass through the archwire groove 12 on the bracket body 1. The round wire can move within the archwire groove 12, which can effectively control the rotation of the teeth and is suitable for dealing with mild crowding or gap problems.

[0039] In the later stages of orthodontic treatment, a square wire is used to pass through the archwire groove 12 on the bracket body 1 to make fine adjustments to the position and angle of the teeth. The movable block 21 can automatically press down the square wire passing through the archwire groove 12 to restrict its movement, which can better achieve fine adjustment and torque control.

[0040] Meanwhile, depending on the different tooth shapes and orthodontic plans of different patients, the movable block 21 allows the archwire slot 12 to adapt to archwires of different thicknesses.

[0041] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A self-ligating bracket with variable grooves, comprising a bracket body (1) and a locking piece (2) movably engaged on the bracket body (1), wherein the bracket body (1) has a transverse archwire groove (12) in the middle for the passage of round or square wires during orthodontic treatment; characterized in that: The inner wall of the locking plate (2) is provided with a movable block (21) for changing the space of the bow wire groove (12).

2. The self-locking bracket with a variable groove according to claim 1, characterized in that: The bracket body (1) has symmetrical side edges (14) on both sides, and the inner sidewall of the side edge (14) has a sliding groove. The locking piece (2) has stepped protrusions (24) on both sides that match the sliding groove.

3. The self-locking bracket with a variable groove according to claim 2, characterized in that: The bracket body (1) is provided with a T-shaped locking part (13) in the middle of the two sides (14), and the front of the T-shaped locking part (13) is provided with a protrusion (15).

4. The self-locking bracket with a variable groove according to claim 3, characterized in that: The middle part of the protrusion (15) is arc-shaped and protruding, and its tail is provided with a hanging groove.

5. The self-locking bracket with a variable groove according to claim 4, characterized in that: The inner wall of the locking piece (2) is also provided with a stop (23), and a roller (22) is provided between the stop (23) and the movable block (21).

6. The self-locking bracket with a variable groove according to claim 5, characterized in that: The roller (22) is made of an elastic material.

7. A self-locking bracket with a variable groove according to any one of claims 1-6, characterized in that: There are two movable blocks (21), which are symmetrically arranged on both sides of the locking plate (2) and integrally formed with the locking plate (2).

8. The self-locking bracket with a variable groove according to claim 7, characterized in that: The movable block (21) is an L-shaped hook for tightly engaging with the T-shaped locking part (13) on the bracket body (1).

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