Self-locking ceramic bracket system

Abstract

The invention discloses a self-locking type ceramic bracket system for tooth orthodontics. The bracket comprises a bracket body, a bracket base and a U-shaped sliding clamp which are of an integrated structure, ligation wings are arranged on the bracket body and comprise the upper ligation wing and the lower ligation wing, the upper ligation wing is composed of the first ligation wing and the second ligation wing, and the lower ligation wing is composed of the third ligation wing and the fourth ligation wing; a concave orthodontic arch wire groove is formed between the upper ligation wing and the lower ligation wing, a turning angle at the bottom of the orthodontic arch wire groove is an arc chamfer, a bottom groove channel is formed in the bracket main body, the sliding clamp is slidably positioned in the bottom groove channel, a concave straight groove is formed in the lower end of the upper ligation wing or the upper end of the lower ligation wing, and the sliding clamp is positioned in the straight groove. One end of the sliding clamp abuts against the straight groove, and the other end of the sliding clamp extends out of the bottom groove channel. The self-locking orthodontic arch wire has the advantages that the self-locking structure is reliable, the self-locking orthodontic arch wire is not easy to fall off and loosen, the self-locking orthodontic arch wire is easy to disassemble while having strong adhesive force, an orthodontic arch wire groove is smooth, and the wearing comfort

Description

Technical Field

[0001] The present invention relates to medical devices in the technical field of orthodontics, in particular to a self-locking ceramic bracket system for orthodontics. Background Art

[0002] Ceramic brackets are widely used as an orthodontic device with high aesthetics and reasonable price.

[0003] Ceramic brackets are made of translucent alumina material, have good biocompatibility, do not contain any metal components, and are suitable for patients who are allergic to metals. They are used to treat malocclusion and abnormal bite of upper and lower teeth. According to the method of use, they can generally be divided into non-self-locking and self-locking types. Among them, self-locking ceramic brackets have the advantages of easy installation and simple operation, and are an important part of orthodontic treatment technology. In orthodontic treatment, self-locking brackets replace traditional ligature fixation by adding a sliding cover to the groove to limit the arch wire in the groove, reducing the friction between the arch wire and the groove to achieve more efficient and gentle orthodontic correction. In related technologies, the stability of the cover of some products is not good, the overall contour is square and not round enough, and there is still room for optimization of the base height. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a self-locking ceramic bracket system with a reliable self-locking structure, not easy to fall off or loosen, strong adhesion force, easy to disassemble, smooth orthodontic archwire grooves, and high wearing comfort.

[0005] The technical solution adopted by the present invention to solve the above problems is: the ceramic bracket system includes a bracket body and a bracket base of an integrated structure, and the bracket body is provided with a ligation wing, the ligation wing includes an upper ligation wing and a lower ligation wing, wherein the upper ligation wing is composed of a first ligation wing and a second ligation wing, and the lower ligation wing is composed of a third ligation wing and a fourth ligation wing; an inward-concave orthodontic archwire groove is provided between the upper ligation wing and the lower ligation wing, and the turning angle of the bottom of the orthodontic archwire groove is a circular arc chamfer. Its structural feature is that it also includes a U-shaped sliding clamp, a bottom groove channel is provided in the bracket body, and the sliding clamp can be slidably located in the bottom groove channel, and an inward-concave straight groove is provided at the lower end of the upper ligation wing or the upper end of the lower ligation wing, one end of the sliding clamp abuts against the straight groove, and the other end thereof extends out of the bottom groove channel.

[0006] The sliding clamp described in the present invention is composed of an integrated locking plate, an arc-shaped connecting plate, and a sliding plate in sequence, wherein the locking plate is S-shaped, the arc-shaped connecting plate is arc-shaped, and the sliding plate is flat. The end of the locking plate rests in the straight groove, and the end of the sliding plate extends out of the bottom groove channel.

[0007] The arc-shaped connecting piece of the present invention is provided with an O-shaped hole at one end close to the locking piece, and a spherical limiting port is provided at the end of the sliding piece away from the end of the arc-shaped connecting piece.

[0008] In the present invention, traction hooks may be provided on the first ligating wing, the second ligating wing, the third ligating wing and the fourth ligating wing.

[0009] The present invention provides a plurality of parallelogram grooves at the bottom of the bracket base, and the inclination angle of the parallelogram grooves is 20-25 degrees.

[0010] The bottom surface of the bracket base of the present invention is a concave arc surface, the compensation angle γ of the arc surface is 0-4°, the axial inclination angle β of the bracket base is 0-13°, and the torque angle α is -22-12°.

[0011] Compared with the prior art, the ceramic bracket has the following beneficial effects: 1. The sliding clamp of the ceramic bracket adopts an optimized clamp forming process, has high strain resistance and an aesthetic optimization coating close to the color of natural teeth, and is precisely and firmly matched with the straight groove, so that a firm self-locking effect is achieved; 2. The sliding clamp of the ceramic bracket is provided with two side operation ends, an O-shaped hole is arranged on the lingual side, and a spherical limiting port is arranged on the gum side, the O-shaped hole facilitates quick unlocking by using an orthodontic forceps, and the spherical limiting port can prevent the sliding clamp from sliding out of the bracket main body; 3. The turning angle of the orthodontic arch wire groove bottom of the ceramic bracket is designed as an arc chamfer according to the sliding trajectory of the orthodontic arch wire, the profile is smooth, the slot torque and the slot size can be precisely controlled, the slot size stability consistency, torque strength and shear bonding strength are high, so that an efficient treatment effect is obtained, the sliding friction resistance of the arch wire is reduced, the smoothness of the arch wire is improved, and the orthodontic wire is conveniently and smoothly inserted from the labial and buccal surface to generate a pressing force; 4. The bottom of the ceramic bracket is provided with a plurality of parallelogram grooves with an inclination angle of 20-25°, when the ceramic bracket is bonded to the tooth surface, the bonding strength is stable and reliable, the bonding is easily achieved, the enamel surface wear is minimized, the bracket bonding failure rate is reduced and the bonding degree is improved, and the damage to the tooth surface during the degluing process is also reduced; 5. The whole ceramic bracket adopts a smooth arc design, the bottom surface of the bracket base is concave and arc-shaped, the compensation angle γ is 0-4°, the shaft inclination angle β is 0-13°, the torque angle α is -22-12°, the curved surface ring-shaped bottom design makes the tooth surface adhesion higher, the torque and the inclination force are precisely controlled, the tooth shape is better fitted, the foreign body sensation is reduced, and better wearing comfort can be achieved; 6. The ceramic bracket adopts a double-wing design of the upper ligation wing and the lower ligation wing, the tensile strength and the pressure are uniform, the appearance effect of the bracket is maximally retained, bracket wing accidental fracture and groove friction resistance are effectively prevented, and the occlusal interference of the maxillary anterior part is minimized; 7. The ceramic bracket adopts a small and arc-shaped design, has a hook-shaped double-wing appearance, the curved surface is smooth, the surface roughness is low, the size is small, the strength is high, the bonding method is professional, the orthodontic treatment patient can be easily and comfortably bonded in clinical use, the flexible sliding clamp is similar to the color of the tooth, the orthodontic arch wire is effectively adjusted, the aesthetic demand of the patient is met, a beautiful smile curve is shaped, and excellent treatment technology presented by an orthodontist is achieved; 8. The ceramic bracket main body is designed to be firm and has high fracture toughness, the titanium spray and the stainless steel sliding clamp are opened and closed, the opener is used to stably open and close the sliding clamp, the sliding clamp is not easy to deform, the reasonable hollow design maximally facilitates the opening and closing function of the sliding clamp, in addition, the traction force of the arch wire is not easy to cause the deformation of the sliding clamp or the fracture of the ceramic, the sliding clamp can restore the original elasticity in the state of removing the traction force of the arch wire; 9. The ceramic bracket has a groove value of 1.14mm (based on the mandibular teeth), a very low value, effectively transmits torque, minimizing occlusal interference or foreign body sensation. 10. The ceramic brackets utilize an angled, conical undercut base plate design, providing stable mechanical bonding to the adhesive resin during treatment. This also offers the advantage of very low stress during bonding. After orthodontic correction, when removing a fallen bracket, it can be easily and stably removed from the tooth surface without breakage, achieving efficient and convenient treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of Example 1.

[0013] Figure 2 This is the main view of Example 1.

[0014] Figure 3 This is the rear view of Example 1.

[0015] Figure 4 It is the left view of Example 1.

[0016] Figure 5 It is the right view of Example 1.

[0017] Figure 6 This is a top view of Example 1.

[0018] Figure 7 This is a bottom view of Example 1.

[0019] Figure 8 for Figure 2 AA cross-sectional view.

[0020] Figure 9 for Figure 2 BB cross-sectional view.

[0021] Figure 10 This is a front view of the bracket body and bracket base in Example 1.

[0022] Figure 11 This is a right side view of the bracket body and bracket base in Example 1.

[0023] Figure 12 for Figure 10 CC cross-sectional view.

[0024] Figure 13 This is a three-dimensional diagram of the sliding clamp in Example 1.

[0025] Figure 14 This is a side view of the sliding clamp in Example 1.

[0026] Figure 15 This is a stereogram of Example 2.

[0027] Figure 16 This is the main view of Example 2.

[0028] Figure 17 This is the rear view of Example 2.

[0029] Figure 18 It is the left view of Example 2.

[0030] Figure 19 This is the right side view of Example 2.

[0031] Figure 20 This is a top view of Example 2.

[0032] Figure 21 This is a bottom view of Example 2.

[0033] Figure 22 for Figure 16 DD cross-sectional view.

[0034] Figure 23 for Figure 16 EE cross-sectional view.

[0035] Figure 24 This is a stereogram of Example 3.

[0036] Figure 25 This is the main view of Example 3.

[0037] Figure 26 This is the rear view of Example 3.

[0038] Figure 27 This is the left view of Example 3.

[0039] Figure 28 This is the right side view of Example 3.

[0040] Figure 29 This is a top view of Example 3.

[0041] Figure 30 This is a bottom view of Example 3.

[0042] Figure 31 for Figure 25 FF cross-sectional view.

[0043] Figure 32 for Figure 25 GG cross-sectional view.

[0044] Figure 33 This is a stereogram of Example 4.

[0045] Figure 34 This is the main view of Example 4.

[0046] Figure 35 This is the rear view of Example 4.

[0047] Figure 36 It is the left view of Example 4.

[0048] Figure 37 This is the right side view of Example 4.

[0049] Figure 38 This is a top view of Example 4.

[0050] Figure 39 This is a bottom view of Example 4.

[0051] Figure 40 for Figure 34 HH cross-sectional view.

[0052] Figure 41 for Figure 34 II sectional view. Implementation Method Example 1:

[0053] See also Figures 1-14 This embodiment includes an integral bracket body 1 and bracket base 2, as well as a U-shaped sliding clamp 7. The sliding clamp 7 is composed, in sequence, of an integral locking piece 701, an arcuate connecting piece 702, and a sliding piece 703. The locking piece 701 is S-shaped, the arcuate connecting piece 702 is arc-shaped, and the sliding piece 703 is flat. The arcuate connecting piece 702 has an O-shaped hole 71 at its end near the locking piece 701, and a spherical stopper 72 at the end of the sliding piece 703 away from the arcuate connecting piece 702.

[0054] The bracket body 1 is provided with ligation wings 3, which include upper and lower ligation wings. The upper ligation wings are composed of a first ligation wing 31 and a second ligation wing 32, and the lower ligation wings are composed of a third ligation wing 33 and a fourth ligation wing 34. A traction hook 8 is provided on the first ligation wing 31.

[0055] A concave orthodontic archwire slot 4 is provided between the upper and lower ligature wings of the bracket body 1. The bottom corner of the orthodontic archwire slot 4 is a circular chamfer. A bottom channel 6 is provided within the bracket body 1. A sliding clamp 7 is slidably positioned within the bottom channel 6. A concave straight slot 5 is provided at the lower end of the upper ligature wing. The locking piece 701 of the sliding clamp 7 abuts the straight slot 5, while the sliding piece 703 extends out of the bottom channel 6.

[0056] A plurality of outwardly protruding parallelogram grooves 21 are provided at the bottom of the bracket base 2 , and the inclination angle of the parallelogram grooves 21 is 20-25°.

[0057] The bottom surface of the bracket base 2 is an inwardly concave arc surface, the compensation angle γ of the arc surface is 4°, the axial inclination angle β of the bracket base 2 is 13°, and the torque angle α is 2°.

[0058] After the archwire is set in the orthodontic archwire slot 4, the locking piece 701 of the sliding clamp 7 is moved into the straight slot 5 using a tool, completing the self-locking process. When unlocking is required, the O-shaped hole 71 is used in conjunction with the orthodontic pliers to quickly unlock the bracket. The spherical stopper 72 on the sliding piece 703 prevents the sliding clamp 7 from sliding out of the bracket body 1. Example 2:

[0059] See also Figure 15-Figure 23 In this embodiment, the bottom surface of the bracket base 2 is a concave arc surface, the compensation angle γ of the arc surface is 0°, the axial inclination angle β of the bracket base 2 is 0°, and the torque angle α is -7°.

[0060] The other structures and usage methods of this embodiment are the same as those of embodiment 1 and will not be described in detail. Example 3:

[0061] See also Figures 24-32 In this embodiment, the bottom surface of the bracket base 2 is a concave arc surface, the compensation angle γ of the arc surface is 0°, the axial inclination angle β of the bracket base 2 is 8°, and the torque angle α is 8°; no traction hook 8 is provided on the ligation wing 3.

[0062] The other structures and usage methods of this embodiment are the same as those of embodiment 1 and will not be described in detail. Example 4:

[0063] See also Figures 33-41 In this embodiment, the straight groove 5 is located at the upper end of the lower ligation wing; the bottom surface of the bracket base 2 is a concave arc surface, the compensation angle γ of the arc surface is 0°, the axial inclination angle β of the bracket base 2 is 0°, and the torque angle α is -1°; no traction hook 8 is provided on the ligation wing 3.

[0064] The other structures and usage methods of this embodiment are the same as those of embodiment 1 and will not be described in detail.

Claims

1. A self-locking ceramic bracket system, comprising a bracket body (1) and a bracket base (2) of an integrated structure, wherein the bracket body (1) is provided with a ligature wing (3), the ligature wing (3) comprising an upper ligature wing and a lower ligature wing, wherein the upper ligature wing is composed of a first ligature wing (31) and a second ligature wing (32), and the lower ligature wing is composed of a third ligature wing (33) and a fourth ligature wing (34); an inwardly concave orthodontic archwire groove (4) is provided between the upper ligature wing and the lower ligature wing, and the turning angle of the bottom of the orthodontic archwire groove (4) is a circular chamfer, and the system is characterized in that: The bracket further comprises a U-shaped sliding clamp (7), a bottom groove channel (6) is provided in the bracket body (1), the sliding clamp (7) is slidably located in the bottom groove channel (6), a concave straight groove (5) is provided at the lower end of the upper ligation wing or the upper end of the lower ligation wing, one end of the sliding clamp (7) abuts against the straight groove (5), and the other end thereof extends out of the bottom groove channel (6).

2. The self-ligating ceramic bracket system according to claim 1, wherein: The sliding clamp (7) is composed of a locking piece (701), an arc-shaped connecting piece (702), and a sliding piece (703) of an integral structure, wherein the locking piece (701) is S-shaped, the arc-shaped connecting piece (702) is arc-shaped, and the sliding piece (703) is flat. The end of the locking piece (701) is against the straight groove (5), and the end of the sliding piece (703) extends out of the bottom groove channel (6).

3. The self-ligating ceramic bracket system according to claim 2, wherein: The arc-shaped connecting piece (702) is provided with an O-shaped hole (71) at one end close to the locking piece (701), and a spherical limiting port (72) is provided at the end of the sliding piece (703) away from the end of the arc-shaped connecting piece (702).

4. The self-locking dental bracket system according to claim 1, wherein: The first ligation wing (31), the second ligation wing (32), the third ligation wing (33) and the fourth ligation wing (34) may be provided with a traction hook (8).

5. The self-locking ceramic bracket system according to claim 1 is characterized in that: The bottom of the bracket base (2) is provided with a plurality of parallelogram grooves (21), and the inclination angle of the parallelogram grooves (21) is 20-25 degrees.

6. The self-ligating ceramic bracket system according to claim 1, wherein: The bottom surface of the bracket base (2) is an inwardly concave arc surface, the compensation angle γ of the arc surface is 0-4°, the axial inclination angle β of the bracket base (2) is 0-13°, and the torque angle α is -22-12°.

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