CN112704572B

CN112704572B - Self-ligating bracket for dental orthodontics

Info

Publication number: CN112704572B
Application number: CN201911027229.3A
Authority: CN
Inventors: 叶富法
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-27
Filing date: 2019-10-27
Publication date: 2022-06-17
Anticipated expiration: 2039-10-27
Also published as: CN112704572A

Abstract

The invention discloses a self-ligating bracket for dental orthodontics, which comprises a bracket body, a bottom plate, a sliding plate, a cover plate and an elastic locking piece. The bottom plate is provided with a bracket body, and the bracket body structurally comprises an arch wire groove, ligation wings, a large groove, a guide groove and an embedding groove; the sliding plate is provided with a flap, a pressing flap and a sliding rail; the cover plate is provided with a stop brace and a thrust strip; the elastic locking piece is embedded between the two caulking grooves and is provided with a locking piece and a thrust piece. The sliding plate is inserted into the cover plate to form a cover plate component, the cover plate component is arranged between the guide grooves and slides along the guide grooves, and the cover plate component is matched with the elastic locking piece to complete the bracket self-locking function. The self-ligating bracket of the invention has the advantages of reliable locking, smooth sliding and simple and convenient operation.

Description

Self-ligating bracket for dental orthodontics

Technical Field

The invention belongs to the technical field of orthodontic appliances, and particularly relates to a self-locking bracket for dental orthodontics.

Background

The self-locking bracket is adopted in the orthodontic treatment of the teeth, so that the effect of obviously shortening the treatment course is achieved; the pain index of the patient can be reduced; the working time beside the chair is reduced and the approval of the orthodontist is obtained. But at present, self-ligating brackets are far from being widely adopted by orthodontists. The following reasons mainly exist: 1, the self-ligating bracket has high failure rate; 2, in the orthodontic treatment process, the torque of the teeth cannot be controlled in the leveling and aligning stage; 3 the structural parameters of the self-ligating bracket are greatly different from those of the common bracket, and the bracket with high torque or medium torque or low torque is selected according to a case, so that inconvenience is brought to an orthodontist.

Disclosure of Invention

Aiming at high failure rate of the self-ligating bracket, the self-ligating bracket adopts an elastic sheet locking mechanism, so that the self-ligating bracket is reliable in locking, convenient to use and good in consistency; aiming at the problem that the self-ligating brackets cannot control the tooth torque in the leveling and aligning stage, the invention uses the pressing flaps on the sliding plates to generate smaller pressure on the arch wire so as to control the tooth torque; aiming at the complicated specification and variety of the self-ligating bracket, the shape, the structure and the parameters of the self-ligating bracket adopted by the invention are similar to those of the common straight wire bracket, thereby being convenient for the selection and the operation of orthodontists. In order to solve the technical problem, the invention is solved by the following technical scheme: a self-ligating bracket for dental orthodontics comprises a bracket body, a bottom plate, a sliding plate, a cover plate and an elastic locking piece. The bottom plate is provided with a supporting groove body, the supporting groove body is provided with an arch wire groove, a ligation wing, a large groove, a guide groove and an embedded groove, the guide groove is arranged on two side faces of the large groove and parallel to a bottom plane, the embedded groove is also arranged on two side faces of the large groove and is perpendicular to the guide groove in a space approaching mode, the sliding plate is provided with a valve, a valve pressing plate and a sliding rail, the cover plate is provided with a stop pulling strip, an anti-thrust strip and a through hole, the bottoms of the inner sides of the stop pulling strip and the anti-thrust strip are respectively provided with a groove, the elastic locking piece is embedded between the two embedded grooves, and the elastic locking piece is provided with a locking piece and a thrust piece. The sliding plate is pushed in from the two grooves of the cover plate to form a cover plate assembly, the cover plate assembly is arranged between the guide grooves and can slide along the guide grooves, and the cover plate assembly is matched with the elastic locking piece to complete a self-locking function.

Preferably, the self-ligating bracket for dental orthodontics comprises an elastic sheet locking mechanism, wherein the self-ligating bracket is in a locking state, and a thrust sheet on an elastic locking piece blocks a thrust strip on a cover plate, so that the cover plate assembly cannot slide towards a closing direction; meanwhile, the locking piece on the elastic locking piece blocks the overlapping flap on the sliding plate, so that the cover plate component cannot slide towards the opening direction.

Preferably, the self-ligating bracket for dental orthodontics, the locking mechanism of the elastic sheet, in a locked state of the self-ligating bracket, the flap and the locking sheet are abutted in a T-shape to block the cover plate assembly from sliding in the opening direction.

Preferably, the self-ligating bracket for dental orthodontic use, the force required for opening the self-ligating bracket in the locked state, the force being mainly determined by the design dimensions of the height, thickness and width of the locking piece, and the influence of the processing error of the member is relatively small. Therefore, the force consistency for opening the self-ligating bracket is good.

Preferably, the elastic piece locking mechanism of the self-ligating bracket for dental orthodontics bends the locking piece under the action of the opening thrust, changes the direction of the reaction force of the locking piece on the flap, bends the flap, rapidly reduces the thrust required by opening, and smoothly opens the cover plate assembly.

Preferably, the self-ligating bracket for dental orthodontics is provided with a step on the cover plate, so that the cover plate assembly is prevented from being pulled off in the opening process.

Preferably, the self-ligating bracket for dental orthodontics is provided with pressing flaps, and the pressing flaps can generate different pressures for arch wires with different thicknesses in the correcting process and are used for controlling tooth torque. The sliding plate can be not provided with a pressing flap, and the self-locking bracket also has a self-locking function and is suitable for patients with slight dentition dislocation.

Preferably, the bracket body, the base plate and the cover plate member of the self-ligating bracket for dental orthodontics are formed of a mixture of metal, alumina ceramic, zirconia ceramic or alumina ceramic and zirconia ceramic.

Preferably, the self-ligating bracket for dental orthodontics has a bracket body with the shape, structure and main parameters similar to those of a common straight wire bracket.

In conclusion, the invention has the remarkable technical effects that: when the self-ligating bracket is used, the self-ligating bracket is firm in locking and convenient to use, and the failure rate is reduced; in the stage of correcting, leveling and squeezing, the torque of the teeth can be controlled; the shape, structure and main parameters of the self-ligating bracket are similar to those of a common straight wire bracket, so that the self-ligating bracket is convenient for an orthodontist to select and operate.

Drawings

FIG. 1 is an exploded view of a self-ligating bracket of the invention.

FIG. 2 is a front view of a self-ligating bracket cover plate and movable plate assembly in cross-section.

FIG. 3 is a top view of the self-ligating bracket cover plate and movable plate assembly of the present invention.

FIG. 4 is a bottom view of the self-ligating bracket cover plate and movable plate assembly of the invention.

FIG. 5 is a cross-sectional view of a self-ligating bracket of the invention in the ligating state, taken through the centerline of the assembly.

FIG. 6 is a cross-sectional view of the self-ligating bracket of the invention shown in an open position, taken through the centerline of the flap.

FIG. 7 is a schematic view of the self-ligating bracket cover plate assembly of the present invention assembled with a bracket body.

FIG. 8 is a front view, in section, of an assembly of a self-ligating bracket cover plate and a movable plate according to the present invention.

FIG. 9 is a top view of the self-ligating bracket cover plate and movable plate assembly of the invention, according to example 2.

FIG. 10 embodiment 2 is a cross-sectional view of a self-ligating bracket of the invention through the centerline of a flap in a ligating condition.

FIG. 11 is a cross-sectional view of a self-ligating bracket of the invention shown in FIG. 2, taken through the centerline of the flap, in an open position.

Description of the reference symbols: 1-bracket body, 2-bottom plate, 3-arch wire groove, 4-tie wing, 5-large groove, 6-guide groove, 7-sliding plate, 71-flap, 73-flap, 74-sliding rail, 8-cover plate, 81-thrust strip, 82-stop strip, 83-through hole, 9-elastic locking piece, 91-locking piece, 92-thrust piece, 10-caulking groove and 110-arch wire.

Detailed Description

The structure and mechanism of the self-ligating bracket of the invention will be further illustrated by the following examples, which are provided for the purpose of illustration and are not intended to be exhaustive.

Example 1:

a self-ligating bracket for dental orthodontics, in particular to a self-ligating bracket with a pressing flap, which is assembled and implemented. As shown in FIG. 1, it has the same basic form and structure as a conventional straight wire bracket. The components of the device comprise a bracket body 1, a bottom plate 2, a sliding plate 7, a cover plate 8 and an elastic locking piece 9. The bracket body 1 is provided with an arch wire groove 3, a ligation wing 4, a large groove 5, a guide groove 6 and an embedding groove 10; the guide grooves are respectively arranged on two side surfaces of the large groove and are parallel to the bottom surface; the caulking grooves are also respectively arranged on the two side surfaces of the large groove and are vertical to the approaching space of the guide groove. The cover plate 8 and the sliding plate 7 are assembled and combined to slide along the guide groove 6, and the elastic locking piece 9 is embedded between the embedding grooves 10 to control the sliding of the cover plate component.

Elasticity latch fitting 9 is packed into and is held in palm cell body 1, as shown in fig. 1, fig. 5, fig. 6, be equipped with locking plate 91, thrust plate 92 on the elasticity latch fitting 9, the elasticity latch fitting inserts from caulking groove 10, thrust plate 92 outwards, and the caulking groove has restricted the guide slot direction motion of elasticity latch fitting, be equipped with two step grooves on the thrust plate, shallow groove lets apron top dead stay, take the lamella to pass through when the assembly, and dark groove lets the pressure lamella pass through, and the locking plate is elasticity cantilever beam structure, and its height is the same with the thrust plate.

The cover plate 8 is assembled with the sliding plate 7, and as shown in fig. 2 to 4, the sliding plate 7 is provided with a lap flap 71, a press flap 73 and a sliding rail 74; the cover plate 8 is provided with a thrust strip 81, a pull stop strip 82 and a through hole 83. The bottom of the inner side of the anti-thrust strip and the bottom of the inner side of the anti-pull strip of the cover plate are respectively provided with a groove, the sliding plate is inserted from the grooves during assembly, the 4 corners of the sliding plate are rounded corners, the insertion is easy to realize, the two are matched in a transition fit, and the wider parts of the sliding plate are basically equal compared with the wider parts of the cover plate and are used as sliding rails. The thrust bar is significantly higher than the stop bar.

Apron subassembly is packed into bracket body 1, as shown in figure 1, figure 5, figure 6, figure 7, apron subassembly inserts bracket body's guide slot entrance, and the elasticity latch fitting has not been touch to the apron subassembly this moment, and the elasticity latch fitting can not be disturbed the apron subassembly motion, and the apron subassembly continues to advance, and the apron ends the brace and passes through the thrust piece notch, touches the locking plate again, and the locking plate is an elasticity cantilever beam structure, and the locking plate is crooked, and the apron subassembly is packed into. The two upper side surfaces of the cover plate component are movably matched with the inner side surfaces of the bracket body, so that the cover plate component has a better guiding function, and the sliding plate does not participate in guiding.

The self-locking bracket for dental orthodontics is opened before use, the mesh surface of the bottom of the bracket is coated with dental adhesive, the bracket is adhered to the tooth surface by the bracket positioner, the arch wire is pressed into the arch wire groove of the bracket, one finger is used for leaning against the bracket ligating wing, and the other finger is used for pushing the cover plate component until the thrust plate blocks the thrust strip. At the same time, the locking tab is also T-shaped against the clip, and the bracket is in a locked condition, as shown in FIG. 5, with the archwire confined within the archwire slot. At this time, the arch wire is lightly pressed by the pressing flaps for controlling the tooth torque.

Orthodontic is with self-ligating bracket when using changes the arch wire operation, the through-hole is being pushed up with the scriber tip, lean on bracket tie wing with a finger, promote the apron subassembly, the locking plate is opening under the thrust effect, the locking plate is crooked, the locking plate makes to take lamella reaction force and also crooked, thus, required thrust descends rapidly, the apron subassembly is opened fast, only draw the strip when the apron subassembly continues to slide out and has touch the locking plate, the thrust piece is touch in the locking plate is crooked, stop the apron subassembly and continue to slide, just so prevent the apron subassembly slippage, as shown in figure 6. After replacing the arch wire, the operation is carried out according to the closing cover plate component.

Example 2:

an assembly implementation of self-ligating brackets without pressing flaps. As shown in fig. 8, 9, 10 and 11, the present embodiment is different from embodiment 1 only in the pressing flaps, and the present embodiment is implemented in the same manner as embodiment 1 without providing the pressing flaps on the sliding plate. No pressure is generated on the arch wire in the correcting process. Is suitable for patients with mild dentition dislocation.

Based on the above embodiments, it may be practiced to form the self-ligating bracket member from a metal or an alumina ceramic or a zirconia ceramic or a mixture of an alumina ceramic and a zirconia ceramic.

In addition, it should be noted that the specific embodiments described in the present specification may differ in the shape of the components, the names of the components, and the like. All equivalents, modifications and additions to the structure, features and principles disclosed herein are deemed to fall within the scope and ambit of the present patent.

Claims

1. A self-ligating bracket for dental orthodontics comprises a bracket body (1), a bottom plate (2), a sliding plate (7), a cover plate (8) and an elastic locking piece (9); the bottom plate (2) is provided with a supporting groove body (1); the bracket body (1) is provided with an arch wire groove (3), a ligation wing (4), a large groove (5), a guide groove (6) and an embedding groove (10); the guide grooves (6) are arranged on two side surfaces of the large groove (5) and are parallel to the bottom plane, and the caulking grooves (10) are also arranged on two side surfaces of the large groove (5) and are vertical to the guide grooves; the sliding plate assembly is characterized in that the sliding plate (7) is pushed in from the inner side of the cover plate (8) to form a cover plate assembly, wherein the cover plate (7) is provided with a lap valve (71), a pressing valve (73) and a sliding rail (74), the cover plate (8) is provided with a stop brace (82), a thrust bar (81) and a through hole (83), the bottoms of the inner sides of the stop brace (82) and the thrust bar (81) are respectively provided with a groove, the elastic locking piece (9) is embedded between the two embedding grooves (10), and the elastic locking piece (9) is provided with a locking piece (91) and a thrust piece (92); the cover plate component is arranged between the guide grooves (6) and can slide along the guide grooves (6), and the cover plate component is matched with the elastic locking piece to complete the self-locking function of the bracket.

2. The self-ligating bracket for orthodontic treatment of claim 1, wherein: the sliding plate (7) is provided with a flap (71), and the flap (71) can be bent and deformed under the action of external force.

3. The self-ligating bracket for orthodontic treatment of claim 1, wherein: the cover plate (8) is provided with a stop pulling strip (82),

The thrust strip (81) and the pull stop strip (82) are steps to prevent the cover plate assembly from being pulled off in the opening process.

4. The self-ligating bracket for orthodontic treatment of claim 1, wherein: the elastic locking piece (9) is provided with a locking piece

(91) And a thrust plate (92), wherein the locking plate (91) blocks the overlapping flap (71) on the sliding plate (7) to enable the cover plate assembly to be in a locking state.

5. The self-ligating bracket for orthodontic treatment of claim 1, wherein: the sliding plate (7) is provided with a pressing flap (73),

used for pressing the arch wire in the correction process.

6. The self-ligating bracket for dental orthodontics according to any one of claims 1, 2, 4 and 5, wherein: the sliding plate (7) and the elastic locking piece (9) are made of rolled metal material with a medical thickness of 0.10mm to 0.18 mm.

7. The self-ligating bracket for orthodontic use according to any one of claims 1 and 3, wherein: the bracket body (1), the bottom plate (2) and the cover plate (8) are self-locking bracket components formed by metal or alumina ceramic or zirconia ceramic or a mixture of the alumina ceramic and the zirconia ceramic.