CN209951429U

CN209951429U - Orthodontic time-sharing self-locking bracket

Info

Publication number: CN209951429U
Application number: CN201920232360.2U
Authority: CN
Inventors: 吕涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-02-25
Filing date: 2019-02-25
Publication date: 2020-01-17
Anticipated expiration: 2029-02-25

Abstract

The utility model belongs to the technical field of the orthodontic bracket of tooth and specifically relates to an just abnormal timesharing self-locking bracket, include: the tooth-supporting bracket comprises a bracket body, wherein a bracket bottom plate which is contacted with teeth is arranged at the bottom of the bracket body; the time-sharing self-locking unit comprises an elastic pressing plate arranged on one side wall of the bracket groove, and the elastic pressing plate defines a passage with variable size; the elastic pressing plate has a first working state and a second working state. The utility model has the advantages of delicate structural design, reasonable application of different working states of the elastic pressing plate at different time periods of orthodontic treatment, early convenience for doctors to press the arch wire into the bracket groove, simple and convenient operation, low friction between the arch wire and the groove, safe and efficient tooth movement; and the thick square wire presses the elastic pressing plate downwards to the side wall of the groove to fill up the clearance in the later period, and the arch wire and the groove have high friction, so that the accurate control of the torque, the shaft inclination and the position of the tooth is realized, the orthodontic treatment effect is greatly improved, and the orthodontic treatment period is shortened.

Description

Orthodontic time-sharing self-locking bracket

Technical Field

The utility model relates to a tooth orthodontic bracket field, in particular to an orthodontic time-sharing self-locking bracket.

Background

The current tooth orthodontic brackets can be divided into two types of traditional ligation brackets and self-locking brackets from the clinical ligation mode. The self-ligating bracket replaces the traditional ligation operation by a self-ligating structure of the bracket, reduces the friction force between the bracket groove and an arch wire, and has the advantages of convenient and efficient clinical operation, soft correcting force, quick tooth movement and the like.

Orthodontic treatment can be roughly divided into two stages according to the thickness of the used arch wire, wherein the first stage is to use the thin arch wire to act on the tooth bracket groove in the early stage to align and level teeth, and the second stage is to use the thick arch wire to control the root of the teeth, so that the teeth can obtain ideal torque, axis inclination and position, and the functions and the attractiveness are considered. The current common self-ligating brackets on the market have the following defects: 1. when the self-ligating bracket uses a thin arch wire in the first stage: when the arch wire is completely in place and the sliding cover is closed, the severely malpositioned teeth are easy to cause overlarge stress on the teeth, so that the risks of tooth loosening, root bone adhesion and root absorption are increased, and the pain of a patient is increased; 2. when the self-locking bracket uses a thicker square wire in the second stage, the arch wire is placed in the groove, the size of the arch wire is certainly smaller than that of the groove (because the full-size arch wire is difficult to be completely put into the groove or the correcting force is overlarge), so that a clearance is inevitably formed between the inner wall of the groove and the arch wire, and the existing self-locking cover plate structure cannot fix the arch wire in the groove to eliminate the clearance, so that the accurate expression of preset data of the bracket is directly influenced, and the correcting treatment course and effect are influenced; 3. the self-locking structure is complex and occupies larger space, so that the bracket wings are short, small and blunt, and the binding wires and the chain-shaped leather rings are not easy to be tied; 4. the production process has high requirement, and the self-locking structure is easy to be too loose and too tight or easy to be damaged.

SUMMERY OF THE UTILITY MODEL

The utility model provides an just abnormal timesharing self-locking bracket, its structural design is reasonable, and reasonable in design's elastic pressing plate can make good use of the strong points and keep away the weak points in the different stages of just abnormal treatment on holding in the palm groove lateral wall. 1. The early stage is convenient for doctors to press the arch wire into the bracket groove, the operation is very simple and convenient, and when the teeth bear overlarge tension, the thin arch wire in the first stage can automatically break through the elastic pressure plate and break away from the bracket groove so as to remind the doctors that the arch wire can not completely enter the bracket groove (suspension ligation can be carried out clinically), thereby avoiding unnecessary damage to patients; 2. the thick arch wire in the second stage can directly extrude the elastic pressing plate to be clamped into the groove of the bracket, and the elastic pressing plate is utilized to eliminate the gap between the arch wire and the groove of the bracket, so that the teeth obtain ideal torque, shaft inclination and position, and the orthodontic effect of the teeth is improved; 3. the bracket has the advantages of ingenious design and simple structure, the bracket wings are the same as the traditional ligating bracket, and the ligating wire and the chain leather collar are convenient to tie; 4. the production process has low requirement and the self-locking structure is very stable, thereby solving the problems in the prior art.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: an orthodontic time sharing self-ligating bracket comprising:

the tooth-supporting bracket comprises a bracket body, wherein a bracket bottom plate which is contacted with teeth is arranged at the bottom of the bracket body;

the time-sharing self-locking unit comprises an elastic pressing plate arranged on one side wall of the bracket groove, and the elastic pressing plate defines a passage with variable size;

the elastic pressing plate has a first working state and a second working state; in a first working state, a thin arch wire with a radial size smaller than the maximum passing size of the channel passes through the channel to enter the bracket groove to form self-locking; in a second working state, the thick arch wire with the radial size larger than the maximum passing size of the channel extrudes the elastic pressure plate to be close to the side wall of the bracket groove to form non self-locking.

Preferably, the elastic pressure plate has a first pressure for limiting the outward movement of the thin arch wire, the elastic pressure plate is squeezed in the direction away from the bracket groove after the thin arch wire is installed, so that the elastic pressure plate bears a second pressure, the second pressure borne by the elastic pressure plate can generate tension to the teeth, when the second pressure reaches the upper limit of the safety range of the tension borne by the teeth, the second pressure acted on the elastic pressure plate by the thin arch wire is greater than the first pressure, and the thin arch wire is separated from the bracket groove.

Preferably, the elastic pressing plate is connected with a reinforcing plate, and the reinforcing plate is fixedly connected with the bracket main body.

Preferably, the elastic pressure plate has a radian which protrudes outwards relative to the bracket groove, and the radian of the elastic pressure plate enables the thick arch wire to be clamped in the bracket groove.

Preferably, the elastic pressure plate has a third working state, and when the elastic pressure plate is in the third working state, the elastic pressure plate can be bent towards the direction away from the bracket groove, so that the passing size of the channel can be larger than the radial size of the thick arch wire, after the thick arch wire enters the bracket groove, the elastic pressure plate returns to the position above the bracket groove to form self-locking on the thick arch wire, and a gap is formed between the thick arch wire and the bracket groove.

Preferably, the elastic pressing plate has a fourth working state, and the elastic pressing plate in the fourth working state can be bent towards the direction away from the bracket groove, so that the elastic pressing plate and the bracket groove are not overlapped in the vertical direction.

Preferably, a connecting part is arranged between the elastic pressing plate and the reinforcing plate, and the fracture strength of the connecting part is smaller than that of the elastic pressing plate and the reinforcing plate.

Preferably, a plurality of apertures are provided on the connecting portion.

Preferably, the bracket main body is provided with the tie wings, the elastic pressing plate is arranged in the middle of the two tie wings at the same side, and the elastic pressing plate can be bent towards the direction away from the bracket groove along the connecting part, so that the elastic pressing plate is close to the outer side surfaces of the grooves of the two tie wings.

Preferably, a horizontal tube is arranged on the bracket body and is used for passing through a thin arch wire.

The utility model adopts the above structure has the advantages that the design is ingenious, the structure is reasonable, the advantages and the disadvantages can be raised and avoided at different stages of orthodontic treatment, the elastic pressing plate with reasonable design is arranged on the bracket groove, the appliance is convenient for doctors to press the arch wire to enter the bracket groove, the operation is very simple and convenient, and when the teeth bear overlarge pulling force, the thin arch wire at the first stage can automatically break through the elastic pressing plate to break away from the bracket groove so as to remind the doctors that the arch wire can not completely enter the bracket groove (the arch wire can be clinically suspended and ligated), and unnecessary damage and pain of patients can be avoided; the thick arch wire in the second stage can directly extrude the elastic pressing plate to be clamped into the groove of the bracket, and the elastic pressing plate is utilized to eliminate the gap between the arch wire and the groove of the bracket, so that the teeth obtain ideal torque, shaft inclination and position, and the orthodontic effect of the teeth is improved; the bracket has the advantages of ingenious design and simple structure, the bracket wings are the same as the traditional ligating bracket, and the ligating wire and the chain leather collar are convenient to be in place in clinical work; the production process has low requirement, the self-locking structure is very stable, and the cost performance is high.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the structure of the utility model with three-dimensional angle.

Fig. 4 is a schematic structural diagram of the first state of the elastic pressing plate according to the present invention.

Fig. 5 is a schematic structural view of the second state of the elastic pressing plate according to the present invention.

Fig. 6 is a schematic structural view of the elastic pressing plate of the present invention having a radian.

Fig. 7 is a schematic structural view of the third state of the elastic pressing plate of the present invention.

In the drawings, 1, a bracket body; 2. a bracket base plate; 3. a bracket groove; 4. an elastic pressure plate; 5. a thin arch wire; 6. a thick arch wire; 7. a connecting portion; 8. a pore; 9. a channel; 10. a tie wing; 11. a horizontal tube; 12. A reinforcing plate; 13. and (4) a groove.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.

As shown in fig. 1-7, the orthodontic time-sharing self-ligating bracket is characterized by comprising:

the tooth-supporting bracket comprises a bracket body 1, wherein a bracket bottom plate 2 which is contacted with teeth is arranged at the bottom of the bracket body 1, and a bracket groove 3 for mounting an arch wire is arranged on the bracket body 1;

the time-sharing self-locking unit comprises an elastic pressing plate 4 arranged on one side wall of the bracket groove 3, and the elastic pressing plate 4 defines a channel 9 with variable size;

as shown in fig. 4 and 5, the elastic pressing plate 4 has a first working state and a second working state; in the first working state, a thin arch wire 5 with a radial size smaller than the maximum passing size of the channel 9 passes through the channel 9 to enter the bracket groove 3 to form a self-locking state; in the second working state, a thick arch wire 6 with a radial size larger than the maximum passing size of the channel 9 is pressed by the elastic pressure plate 4 and the other side wall of the bracket groove 3 to eliminate the clearance to form a non-self-locking state, and the arch wire in the state needs to be tied and fixed. As the bracket pre-forming torque cannot be accurately expressed, an orthodontist needs to bend an arch wire to properly adjust the torque, but clinically, the degree of the arch wire torque is difficult to accurately control, so that no torque force exists or the risk that the torque is too large to cause tooth root absorption is easily caused, as shown in a figure 5, an elastic pressing plate 4 in a second working state is embedded into a bracket groove 3 and is matched with the bracket groove 3 to directly clamp a thick arch wire 6, so that the torque expressed by the thick arch wire 6 is softer, safer and more efficient, and the pain and the side effect of a patient are relieved.

The elastic pressure plate 4 has a first pressure for limiting the outward movement of the thin arch wire 5, the elastic pressure plate 4 is extruded in the direction away from the bracket groove 3 after the thin arch wire 5 is installed, so that the elastic pressure plate 4 bears a second pressure, the second pressure borne by the elastic pressure plate 4 can generate a tensile force on teeth, when the second pressure reaches the upper limit of a safety range of the tensile force borne by the teeth, the second pressure of the thin arch wire 5 acting on the elastic pressure plate 4 is greater than the first pressure, and the thin arch wire 5 is separated from the bracket groove 3. The fine arch wire 5 can move in support groove 3 after installation, can produce the power that the extrusion was held in the palm groove 3, or produce the second pressure that acts on elastic pressure plate 4, because the effect of force is mutual, the second pressure can make the tooth bear corresponding pulling force, when the second pressure reaches the tooth and bears tensile safe range upper limit, fine arch wire 5 can break through elastic pressure plate 4 and pop out and hold in the palm groove 3, adjust the afterburning size of fine arch wire 5 and support groove main part 1 with reminding the doctor, protect the tooth, avoid the patient to suffer unnecessary damage and misery.

In order to improve the stability of the connection between the elastic pressing plate 4 and the bracket body 1, the elastic pressing plate 4 is connected with the reinforcing plate 12, and the reinforcing plate 12 is fixedly connected with the bracket body 1. The reinforcing plate 12 is connected with the bracket body 1, so that the elastic pressing plate 4 is stably and accurately arranged and installed. Specifically, the reinforcing plate 12 and the bracket body 1 may be connected by welding.

As shown in fig. 6, in order to ensure the self-locking effect of the elastic pressure plate 4 on the thick archwire 6 in the second state, the elastic pressure plate 4 has a radian which protrudes outwards relative to the bracket slot 3, and the radian of the elastic pressure plate 4 enables the thick archwire 6 to be clamped in the bracket slot 3.

The elastic pressing plate 4 has a third working state, when the elastic pressing plate 4 is in the third working state, the elastic pressing plate 4 can be bent towards the direction far away from the bracket groove 3, so that the passing size of the channel 9 can be larger than the radial size of the thick arch wire 6, after the thick arch wire 6 enters the bracket groove 3, the elastic pressing plate 4 returns to the position above the bracket groove 3 to form self-locking on the thick arch wire 6, and a gap is formed between the thick arch wire 6 and the bracket groove 3.

The elastic pressing plate 4 has a fourth working state, the elastic pressing plate 4 in the fourth working state can be bent upwards, the elastic pressing plate 4 and the bracket groove 3 are not overlapped in the vertical direction, the elastic pressing plate 4 is separated from the bracket groove 3 in the vertical direction, and the follow-up non-self-locking state is guaranteed.

In order to ensure that the elastic pressure plate 4 and the bracket groove 3 do not coincide with each other in the vertical direction, a connecting part 7 is arranged between the elastic pressure plate 4 and the reinforcing plate 12, and the fracture strength of the connecting part 7 is smaller than that of the elastic pressure plate 4 or the reinforcing plate 12.

In order to facilitate the elastic pressing plate 4 to be broken off from the connecting part 7, a plurality of pores 8 are arranged on the connecting part 7. The design of the aperture 8 reduces the breaking strength at the location of the connection 7 and bends the resilient pressure plate 4 upwards to break.

Considering another bending state of the elastic pressing plate 4, the ligating wings 10 are arranged on the bracket main body 1, the elastic pressing plate 4 is arranged in the middle of the two ligating wings 10 on the same side, and the elastic pressing plate 4 can be bent towards the direction far away from the bracket groove 3 along the connecting part 7, so that the elastic pressing plate 4 is close to the outer side surfaces of the grooves 13 of the two ligating wings 10. In use, the flexible clip 4 may be bent proximate the recess 13 in the middle of the tie wings 10 without breaking. The tie wings 10 are designed to facilitate ligation of an archwire. The connecting part 7 can be made of a material with the breaking strength smaller than that of the elastic pressing plate 4 and the reinforcing plate 12; or the material consumption of the connecting part 7 can be reduced, so that the thickness of the connecting part 7 is smaller than the thickness of the elastic pressing plate 4 and the reinforcing plate 12, and the effect of bending the connecting part 7 is achieved while the normal function of the elastic pressing plate 4 is ensured.

In order to ensure the adaptability of the tooth bracket, a horizontal tube is arranged on the bracket body and is used for penetrating through a thin arch wire. In order to reduce unnecessary part design and reduce the living cost of the device, the vertical section 12 of the elastic pressure plate 4 is connected with the bracket body 1 in a welding way. The welding mode is adopted to ensure the stability of the arrangement of the elastic pressing plate 4 and avoid the position deviation of the elastic pressing plate 4.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims

1. An orthodontic time sharing self-ligating bracket, comprising:

2. The orthodontic time-sharing self-ligating bracket of claim 1, wherein the flexible clip has a first pressure for limiting outward movement of the archwire, the archwire is mounted to compress the flexible clip in a direction away from the bracket slot to enable the flexible clip to bear a second pressure, the second pressure borne by the flexible clip can generate a pulling force on the tooth, when the second pressure reaches the upper limit of the safety range of the pulling force borne by the tooth, the second pressure exerted by the archwire on the flexible clip is greater than the first pressure, and the archwire is disengaged from the bracket slot.

3. The orthodontic time-sharing self-ligating bracket of claim 1 or 2, wherein the resilient clip is connected to a reinforcing plate, and the reinforcing plate is fixedly connected to the bracket body.

4. The orthodontic time-sharing self-ligating bracket of claim 3, wherein the resilient clip has an outwardly convex curvature relative to the bracket slot, the curvature of the resilient clip causing the archwire of the pair to be captured within the bracket slot.

5. The orthodontic time-sharing self-ligating bracket of claim 4, wherein the resilient pressure plate has a third operating condition, and when in the third operating condition, the resilient pressure plate is capable of flexing away from the bracket slot to enable the passage dimension of the passage to be larger than the radial dimension of the thick archwire, so that after the thick archwire enters the bracket slot, the resilient pressure plate returns to a position above the bracket slot to self-ligating the thick archwire, and a gap is provided between the thick archwire and the bracket slot.

6. The orthodontic time-sharing self-ligating bracket of claim 4, wherein the resilient tab has a fourth operating condition, the resilient tab in the fourth operating condition being capable of flexing away from the bracket slot such that the resilient tab and the bracket slot do not vertically overlap.

7. The orthodontic time-sharing self-ligating bracket of claim 6, wherein a connecting portion is provided between the elastic pressure plate and the reinforcing plate, and the fracture strength of the connecting portion is less than that of the elastic pressure plate and the reinforcing plate.

8. The orthodontic time-sharing self-ligating bracket of claim 7, wherein a plurality of apertures are provided in the attachment portion.

9. The orthodontic time-sharing self-ligating bracket of claim 7, wherein the bracket body is provided with tie wings, the elastic pressing plate is arranged at the middle position of the two tie wings on the same side, and the elastic pressing plate can be bent towards the direction far away from the bracket groove along the connecting part, so that the elastic pressing plate is close to the outer side surfaces of the grooves of the two tie wings.

10. The orthodontic time-sharing self-ligating bracket of any one of claims 4-9, wherein a horizontal tube is provided on the bracket body for passage of a thin archwire.