An orthodontic bracket having parallel segment overlaps and arcuate chamfers

Abstract

The utility model discloses a kind of sharp teeth bracket with parallel section overlap and arc-shaped corner cutting, including substrate, bracket body and the groove being arranged on bracket body;The bracket body is set on substrate;The middle part of the groove is flat section;Two ends of the groove are respectively provided with arc-shaped corner cutting.The utility model sets up flat section in the middle part of groove, so that the groove wall parallel section overlap guarantees late lip tongue to torque control.The utility model sets up arc-shaped corner cutting in the two ends of groove, and early free inclination movement can be realized;Meanwhile, compared with traditional straight line corner cutting, the arc-shaped corner cutting can effectively expand the free inclination angle of sharp teeth, increase the cutting inclination range, so that more smooth and efficient initial tooth movement is realized;Finally, the arc-shaped corner transition avoids the scratching effect of sharp angle on arch wire, reduces the frictional resistance of arch wire movement.The sharp teeth bracket of the utility model can effectively improve the movement effect of sharp teeth, so as to facilitate the movement control of anterior teeth and posterior teeth.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and more specifically, to a canine bracket with overlapping parallel segments and an arc-shaped chamfer. Background Technology

[0002] Modern orthodontic systems mainly fall into two categories: the square wire / straight wire system and the Begg / Tip-Edge thin wire / straight wire system.

[0003] (1) Straight wire / square wire orthodontic system

[0004] This system emphasizes precise three-dimensional control of teeth, enabling them to move accurately under three-dimensional control. However, it suffers from problems such as high friction, low tooth movement efficiency, and limited range of tooth movement, often requiring a longer treatment period and more extensive anchorage design in clinical practice.

[0005] (2) Begg / Tip-Edge fine wire orthodontic system

[0006] This system allows teeth to tilt and move freely in the early stages under the gentle force of fine wires. Its advantages include low friction and high tooth movement efficiency, enabling large-scale tooth movement while conserving anchorage. However, in the later stages of treatment, after the teeth have moved to the target position, root and axis control is still required using square wires and accessories to achieve precise three-dimensional adjustment of the teeth.

[0007] In the Begg / Tip-Edge orthodontic philosophy, the canines, as a crucial link between anterior and posterior teeth in the dental arch, play a vital role in the intrusion and distalization of anterior teeth and the anchorage control of posterior teeth. Therefore, optimizing the structural design of brackets in the canine region is of significant clinical value in balancing efficient and free movement in the early stages with fine-tuning in the later stages.

[0008] In orthodontic treatment, the canine incisor bracket design allows for a wide range of free tilting of the canines, thereby driving distal movement of the anterior teeth and quickly adjusting the sagittal intermaxillary relationship. This offers significant advantages for certain malocclusions such as anterior crossbite and deep overbite. While existing thin-wire straight-wire systems (such as Tip-Edge and driven straight-wire archetypes) achieve rapid tooth tilting through incisors at the mesial and distal positions of the upper and lower grooves, the lack of overlap between the upper and lower parallel segments of the incisor brackets hinders effective torque adjustment in the later stages. This results in insufficient three-dimensional fine adjustment capability and poor overall compatibility, primarily exhibiting the following shortcomings:

[0009] Lack of torque control: Although there are still parallel segments after the chamfer, the upper and lower parallel segments cannot overlap due to misalignment, making it difficult to effectively and accurately transmit the lip-tongue torque when entering the later square wire stage.

[0010] Archwire scoring: When the right-angle cut is tilted beyond a certain range by the canine, scoring is easily generated on the surface of the archwire, which will cause resistance to the sliding of the archwire;

[0011] Insufficient overall compatibility: Clinical needs require both free tilting and three-dimensional control at different stages, which existing brackets cannot meet simultaneously. Utility Model Content

[0012] To overcome the shortcomings of traditional chamfered brackets in effectively transmitting lip-tongue torque during the later square wire stage, this invention provides a canine bracket with overlapping parallel segments and an arc-shaped chamfer.

[0013] The canine bracket includes a base plate, a bracket body, and a groove provided on the bracket body;

[0014] The bracket body is mounted on the base plate;

[0015] The middle section of the trench is straight;

[0016] The two ends of the groove are respectively provided with arc-shaped chamfers.

[0017] Preferably, each end of the groove has an arc-shaped chamfer on one of its walls.

[0018] Preferably, the arc of the arc-shaped chamfer of the groove gradually decreases from the end of the groove towards the middle.

[0019] Preferably, the arc-shaped chamfers at both ends of the groove are centrally symmetrical along the center point of the groove.

[0020] Preferably, the length of the straight section in the middle of the groove is one-third of the total length of the groove.

[0021] Preferably, the substrate is an arc-shaped substrate;

[0022] The direction of the groove is perpendicular to the central axis of the substrate's curved surface.

[0023] Preferably, the bracket body is further provided with an auxiliary pipe;

[0024] The auxiliary pipe is a through hole provided on the main body of the bracket;

[0025] The auxiliary pipe is located below the trench and does not intersect with the trench;

[0026] The horizontal spatial angle between the auxiliary pipe and the trench is α, and α satisfies 0° < α < 180°.

[0027] Preferably, the horizontal spatial angle α between the auxiliary pipe and the groove is 90°.

[0028] Preferably, the radial cross-section of the auxiliary pipe is a parallelogram.

[0029] Compared with the prior art, the beneficial effects of this utility model's technical solution are:

[0030] This invention provides a straight section in the middle of the groove, which allows the parallel sections of the groove wall to overlap, ensuring subsequent lip-tongue torque control.

[0031] This invention enables early free tilting movement by setting arc-shaped chamfers at both ends of the groove; at the same time, compared with the traditional straight chamfer, the arc-shaped chamfer can effectively expand the free tilting angle of the canine, increasing its inclination range, thereby achieving smoother and more efficient initial tooth movement; finally, the arc-shaped chamfer transition avoids the scratching effect of sharp corners on the archwire, reducing the frictional resistance of the archwire during movement.

[0032] This invention provides a through-tube in the vertical direction of the bracket body during use, which satisfies the free tilting and axial torque control of teeth at different stages.

[0033] The canine bracket described in this invention is particularly suitable for complex mechanical needs such as distal tilting of canines, distal movement of anterior teeth, and anchorage control of posterior teeth, thereby improving the overall orthodontic effect. Attached Figure Description

[0034] Figure 1 This is a three-dimensional view of a canine bracket with overlapping parallel segments and an arc-shaped chamfer, as described in Example 1.

[0035] Figure 2 This is a front view of a canine bracket with overlapping parallel segments and an arc-shaped chamfer, as described in Example 1.

[0036] Figure 3 This is a top view of a canine bracket with overlapping parallel segments and an arc-shaped chamfer, as described in Example 1. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0038] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0039] Example 1

[0040] like Figure 1-3 As shown, this embodiment discloses a canine bracket with parallel overlapping segments and arc-shaped chamfer, including a base plate 1, a bracket body 2, and a groove 3 provided on the bracket body 2;

[0041] The bracket body 2 is disposed on the base plate 1;

[0042] The middle section of the groove 3 is a straight section;

[0043] The two ends of the groove 3 are respectively provided with arc-shaped chamfers.

[0044] It should be noted that, in this embodiment, by setting a straight section in the middle of the groove 3, a parallel area is formed between the two groove walls of the groove 3, which can effectively transmit the lip-tongue torque in the square wire stage.

[0045] In addition, this embodiment also provides arc-shaped chamfers at both ends of the groove, which can reduce archwire scratches and expand the tiltable "tolerance zone". This can effectively avoid the problem of scratches on the archwire surface when the right-angle chamfer is tilted beyond a certain range.

[0046] In this embodiment, each end of the groove 3 has an arc-shaped chamfer on one of its walls.

[0047] In this embodiment, the arc of the arc-shaped chamfer of the groove 3 gradually decreases from the end of the groove 3 toward the middle.

[0048] It should be noted that the end of groove 3 has a larger curvature (more rounded), which can guide the archwire to enter the groove easily and reduce jamming or scraping during insertion; the curvature gradually decreases as it transitions to the middle (closer to the main shape of the groove), which can smoothly connect the archwire and groove 3, so that the frictional resistance of the archwire gradually transitions from the end to the middle when it is subjected to force (such as during orthodontic treatment), avoiding interruption of force transmission due to abrupt changes in curvature.

[0049] In this embodiment, the arc-shaped chamfers at both ends of the groove 3 are centrally symmetrical along the center point of the groove 3.

[0050] It should be noted that the centrally symmetrical arc-shaped chamfers facilitate the insertion, movement, or adjustment of the archwire; and the paired arc-shaped chamfers are beneficial for the straight operation of the archwire. When the straight length of the archwire exceeds the length of the groove 3, the archwire can contact the two arc-shaped chamfers at the same time, which can reduce the wear on the surface of the archwire and reduce the frictional resistance between the archwire and the end of the groove, allowing the archwire to transmit the corrective force more smoothly.

[0051] In this embodiment, the length of the straight section in the middle of the groove 3 is one-third of the length of the groove 3.

[0052] It should be noted that in this embodiment, the middle 1 / 3 of the groove 3 retains a parallel section of 1–1.2 mm, that is, the two parallel areas of the groove 3 overlap by 1 / 3, rather than being misaligned and parallel, thereby ensuring that the square wire stage can effectively transmit the lip-tongue torque.

[0053] In this embodiment, the substrate 1 is an arc-shaped substrate;

[0054] The direction of the groove 3 is perpendicular to the central axis of the arc surface of the substrate 1.

[0055] It should be noted that, since the curved surface of substrate 1 is designed according to the shape of teeth, it can achieve "surface contact" with the surface of canines (rather than "point contact" or "line contact" of planar substrates), which greatly increases the contact area between the substrate and the teeth.

[0056] The direction of groove 3 is perpendicular to the central axis of the curved surface of the substrate 1. Essentially, this is to match the direction of the groove with the "physiological force direction" of the canine. Groove 3, which is perpendicular to the central axis of the substrate, allows the archwire embedded in it to accurately transmit the "force along the orthodontic direction" (such as the horizontal force during retraction), avoiding deviation in the direction of the force. If the direction of the groove is not perpendicular to the central axis of the substrate, the force applied by the archwire may be decomposed into "unnecessary vertical components" (such as depressing or raising the teeth), causing the canine orthodontic direction to deviate from the expected direction and increasing the orthodontic period.

[0057] In this embodiment, the bracket body 2 is also provided with an auxiliary pipe 4;

[0058] The auxiliary pipe 4 is a through hole provided on the bracket body 2;

[0059] The auxiliary pipe 4 is located below the groove 3 and does not intersect with the groove 3;

[0060] The horizontal spatial angle between the auxiliary pipe 4 and the groove 3 is α, and α satisfies 0° < α < 180°.

[0061] The arc-shaped chamfer design of groove 3 aims to enable early free tilting of the canine, thereby facilitating the improvement of the overall sagittal relationship of the upper and lower dentition. After the tooth moves to the target position, the axial tilt and labiolingual torque of the canine need to be controlled back to the standard position.

[0062] It should be noted that, in this embodiment, an auxiliary tube 4 is provided on the bracket body 2, which extends through the bracket body 2 along the vertical plane, for accommodating auxiliary archwires or plugs, thereby providing additional axial alignment or axial control in the later orthodontic stage.

[0063] The horizontal spatial angle between the auxiliary pipe 4 and the groove 3 is α, and α satisfies 0° < α < 180°. In a specific embodiment, α = 90°.

[0064] In this embodiment, the radial cross-section of the auxiliary pipe 4 is a parallelogram.

[0065] It should be noted that the radial cross section of the auxiliary tube 4 is set as a parallelogram, which facilitates the setting of the archwire or plug and can limit the rotational offset of the archwire or plug. When the rectangular plug is inserted into the parallelogram auxiliary tube, when the plug is subjected to a distal force, the auxiliary tube will apply a pair of force couples to the plug at the two ends of the diagonal, thereby effectively controlling the tilt of the canine.

[0066] When the canine axial tilt is restored, the overlapping portion of the parallel segments of the groove can play a controlling role in the labial-lingual torque, further regulating the three-dimensional position of the tooth.

[0067] In the specific implementation process, the substrate 1 is attached to the middle of the labial and buccal side of the canine, and the adhesive is cured by light to fix the substrate 1 and the entire bracket on the canine.

[0068] Select a suitable orthodontic archwire and insert one end of it into the slot 3 of the bracket on one side of the mouth, passing through the slot 3 of all brackets, including the canine brackets.

[0069] After the archwire has completely passed through the groove 3, use ligature wire or the self-locking buckle of the bracket to fix the archwire in the groove 3 to prevent the archwire from shifting.

[0070] After fixation, we first use a nickel-titanium archwire to initially align the teeth. The archwire generates corrective force due to its elastic deformation, which is transmitted through the groove 3 to the bracket body 2, and then through the base plate 1 to the canines, guiding the canines to gradually move to the correct position. When the archwire is changed to a round wire, horizontal intramaxillary traction or intermaxillary traction is used to move the canines distally. Due to the arc-shaped incisor angle design of the groove 3, the canines can tilt freely during distal movement, thereby achieving rapid movement of the incisors or the entire dentition and adjustment of intermaxillary relationships.

[0071] In addition, auxiliary archwires or plugs are installed in the auxiliary tube. If axial alignment or control is required during the above process, the auxiliary archwires or plugs are used to control the axial tilt, thus meeting clinical adjustment needs. After the axial tilt of the canine is gradually restored, a thicker square archwire can be gradually replaced to control and adjust the labial and lingual torque of the canine.

[0072] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A canine bracket having parallel segment overlaps and arc-shaped chamfers, characterized in that, It includes a substrate (1), a tray body (2), and a groove (3) provided on the tray body (2); The bracket body (2) is disposed on the base plate (1); The middle section of the groove (3) is a straight section; The groove (3) has arc-shaped chamfers at both ends.

2. A canine bracket with overlapping parallel segments and an arc-shaped chamfer as described in claim 1, characterized in that, Each end of the groove (3) has an arc-shaped chamfer on its groove wall.

3. The bracket according to claim 2, wherein the bracket has a parallel segment overlap and an arc-shaped chamfer. The arc of the arc-shaped chamfer of the groove (3) gradually decreases from the end of the groove (3) toward the middle.

4. The bracket according to claim 3, wherein the bracket has a parallel segment overlap and an arc-shaped chamfer. The arc-shaped chamfers at both ends of the groove (3) are centrally symmetrical along the center point of the groove (3).

5. The bracket according to claim 1 or 4, wherein the bracket has a parallel segment overlap and an arc-shaped corner cut. The length of the straight section in the middle of the groove (3) is one-third of the length of the groove (3).

6. A canine bracket with overlapping parallel segments and an arc-shaped chamfer according to claim 5, characterized in that, The substrate (1) is an arc-shaped substrate; The direction of the groove (3) is perpendicular to the central axis of the arc surface of the substrate (1).

7. The bracket according to claim 1 or 6, wherein the bracket has a parallel segment overlap and an arc-shaped corner cut. The bracket body (2) is also provided with an auxiliary pipe (4); The auxiliary pipe (4) is a through hole provided on the bracket body (2); The auxiliary pipe (4) is located below the groove (3) and does not intersect with the groove (3); The auxiliary pipe (4) and the groove (3) have a spatial angle of α in the horizontal direction, and α satisfies 0° < α < 180°.

8. A canine bracket with overlapping parallel segments and an arc-shaped chamfer according to claim 7, characterized in that, The auxiliary pipe (4) and the groove (3) form a spatial angle α = 90° in the horizontal direction.

9. The bracket according to claim 8, wherein the bracket has a parallel segment overlap and an arc-shaped corner cut. The radial cross section of the auxiliary pipe (4) is a parallelogram.

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