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CN-224220259-U - Orthodontic bracket

CN224220259UCN 224220259 UCN224220259 UCN 224220259UCN-224220259-U

Abstract

The utility model provides an orthodontic bracket, which comprises a bottom plate, wherein a fixing block is arranged on the bottom plate, the fixing block comprises an upper wing and a lower wing, a gap between the upper wing and the lower wing forms an arch wire groove, a sliding groove is formed in the top surface of the upper wing in a penetrating way, a lock cover is connected in a sliding way in the sliding groove, a first groove is formed in the sliding groove and is arranged on the vertical inner wall of one side of the sliding groove, which is close to the bottom plate, a through hole is formed in the position of the lock cover corresponding to the first groove, a shaft wire is arranged in the through hole, one end of the shaft wire is positioned in the first groove, a fixing plate is arranged in the first groove, the fixing plate consists of two arc plates, and two symmetrical placing grooves are formed in a gap between the two arc plates.

Inventors

  • ZHI WENBING

Assignees

  • 广州创启医疗科技有限公司

Dates

Publication Date
20260512
Application Date
20250415

Claims (8)

  1. 1. The utility model provides an orthodontic bracket, including bottom plate (101), be provided with fixed block (102) on bottom plate (101), fixed block (102) are including last wing (103) and lower wing (104), clearance formation archwire slot (105) between last wing (103) and the lower wing (104), spout (106) have been seted up in going up the top surface penetration of wing (103), spout (106) are linked together with the vertical face in one side that bottom plate (101) was kept away from to last wing (103), sliding connection has locking closure (107) in spout (106), the cross section of spout (106) and locking closure (107) all sets up to T font structure, its characterized in that: The sliding groove (106) is provided with a first groove (108), and the first groove (108) is arranged in the sliding groove (106) and is close to the vertical inner wall of one side of the bottom plate (101); A through hole (109) is formed in the position, corresponding to the first groove (108), of the lock cover (107), a shaft wire (110) is arranged in the through hole (109), and one end of the shaft wire (110) is positioned in the first groove (108); A fixing plate (111) is arranged in the first groove (108), the fixing plate (111) is composed of two arc-shaped plates (112), and a gap between the two arc-shaped plates (112) forms two symmetrical placing grooves for storing one end of a shaft wire (110); At least one of the fixing plate (111) and the shaft wire (110) is made of deformable materials.
  2. 2. The orthodontic bracket of claim 1, wherein the wire (110) and the plate (111) are configured to be deformable such that the wire (110) deforms under an external force to adjust the position within the plate (111).
  3. 3. The orthodontic bracket of claim 2, wherein the wire (110) and/or the plate (111) are formed of a nickel titanium alloy material to facilitate deformation and return to its original shape under the influence of the temperature of the mouth.
  4. 4. The orthodontic bracket of claim 3, wherein the wire (110) is configured in a cylindrical configuration such that the load is spread through the arcuate surface of the wire (110) to prevent accidental removal of the cover (107) due to localized breakage of the wire (110).
  5. 5. The orthodontic bracket of claim 1, wherein the fixing plate (111) further comprises a connecting frame (113), the connecting frame (113) is arranged in a 冖 -shaped structure, and two ends of the connecting frame (113) are connected with the upper ends of the two arc-shaped plates (112).
  6. 6. The orthodontic bracket of claim 1, wherein the upper portion of the first groove (108) is a rectangular groove (401) and the lower portion of the first groove (108) is two angled relief grooves (402), the two relief grooves (402) being in communication with the rectangular groove (401).
  7. 7. The orthodontic bracket of claim 1, wherein the top surface of the lower wing (104) is provided with a second groove (201) near the edge of the locking cover (107) for forming an operating groove between the second groove (201) and the locking cover (107), and the operating groove is used for placing an unlocking tool to open the locking cover (107).
  8. 8. The orthodontic bracket of claim 7, wherein a first projection (301) is provided on a vertical surface of the lock cover (107) and on a side close to the lower wing (104), a second projection (302) is provided on a vertical surface of the lower wing (104), and the first projection (301) and the second projection (302) form a force supporting point, so that stability and safety in unlocking operation are improved.

Description

Orthodontic bracket Technical Field The utility model relates to the technical field of oral brackets, in particular to an orthodontic bracket. Background The bracket is an important part for fixing the orthodontic technology, is directly adhered to the surface of the dental crown by using an adhesive, and applies various orthodontic forces to teeth by the archwire through the bracket, and is made of stainless steel, biological ceramics or composite resin. In the prior art, the self-locking bracket adopts a sliding type locking cover to replace the traditional ligature (with a rubber ring or ligature wire), so that the friction resistance between the arch wire and the bracket is obviously reduced, the light force correction is realized, and the comfort level of a patient is improved. However, the locking cover of the current self-locking bracket commonly adopts a simple sliding rail type locking structure, and the design has the obvious defects that alternating shearing force generated in the chewing process can form stress concentration along a sliding rail contact surface when the stress exceeds a critical value of the locking structure (namely, the locking cover can move up and down frequently due to friction force during chewing), the locking cover is easy to deviate off accidentally, for example, the locking cover deviates off, the correction force transmission is interrupted, the treatment process is prolonged, and even displacement recurrence occurs due to the fact that teeth lose continuous control, so that the stability of the correction effect is influenced. Disclosure of utility model In view of the above, the utility model provides an orthodontic bracket, which can be adjusted by arranging the axial wires in the symmetrical slots of the fixing plate and matching with the deformable materials of the axial wires, so that the locking cover is limited by the clamping of the axial wires and the arc plate when the locking cover is opened and closed, and the stress concentration under dynamic loads such as chewing, traction of the arc wire and the like is avoided, thereby fundamentally preventing the locking cover from being accidentally separated. In order to solve the technical problems, the utility model provides an orthodontic bracket which comprises a bottom plate, wherein a fixed block is arranged on the bottom plate and comprises an upper wing and a lower wing, a gap between the upper wing and the lower wing forms an archwire groove, the top surface of the upper wing is provided with a sliding groove in a penetrating way, the sliding groove is communicated with a vertical surface of one side, far away from the bottom plate, of the upper wing, a locking cover is connected in the sliding groove in a sliding way, and the cross sections of the sliding groove and the locking cover are in a T-shaped structure. The chute is provided with a first groove, the first groove is arranged in the chute and is close to the vertical inner wall on one side of the bottom plate, the upper part of the first groove is a rectangular groove, the lower part of the first groove is provided with two inclined yielding grooves, the two yielding grooves are communicated with the rectangular groove, and the first groove and the fixed block are integrally formed through casting by a die during manufacturing. The through hole has been seted up to the position that the locking closure corresponds first recess, be provided with the axle silk in the through hole, the axle silk penetrates in the through hole, the through hole sets up in the axle center department of locking closure, the first recess corresponds the middle part setting of the vertical inner wall in one side at first recess place equally, thereby can make the axle silk atress even in the slip in-process, avoid leading to slope or jamming because of eccentric atress, and the middle part location makes the cooperation of axle silk and both sides spout more balanced, axle silk one end is located first recess, make the axle silk can carry out the position control of upper and lower position in first recess. The shaft wire is arranged into a cylindrical structure, so that load is diffused through the arc surface of the shaft wire, accidental release of the locking cover caused by local fracture of the shaft wire is avoided, and the locking state of the locking cover and the sliding groove in the correction process is ensured to be stable. Be provided with the fixed plate in the first recess, the fixed plate comprises two arc, and the clearance between two arc forms two symmetrical standing grooves for deposit to axle silk one end, make the axle silk can carry out position control in two standing grooves, the fixed plate still including a linking frame, the linking frame sets up to 冖 font structure, and linking frame both ends are connected with arc upper end, avoid the arc to take place excessive deformation or position offset because of the atress in the axle silk accomm