CN113331972A

CN113331972A - Orthodontic self-locking bracket with open auxiliary groove

Info

Publication number: CN113331972A
Application number: CN202010133050.2A
Authority: CN
Inventors: 吕涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-01
Filing date: 2020-03-01
Publication date: 2021-09-03

Abstract

The invention relates to an orthodontic self-locking bracket with an open auxiliary groove, which comprises a groove body, wherein the bottom of the groove body is provided with a base, a main groove is arranged in the groove body, and the main groove is suitable for arranging a thick arch wire; the auxiliary groove is arranged on one side of the main groove and is suitable for arranging a thin arch wire; the elastic baffle is arranged between the main groove and the auxiliary groove to separate the main groove from the auxiliary groove; the self-locking cover plate is arranged above the auxiliary groove and the main groove and can be opened or closed; the extrusion piece is used for being inserted into the auxiliary groove to enable the elastic baffle to elastically deform towards the direction of the main groove. The bracket is provided with two different grooves, and a doctor can arrange the thin arch wire in the auxiliary groove according to the requirement, so that the thin arch wire can be accurately aligned through the auxiliary grooves of the adjacent brackets, and the horizontal pipe of the conventional self-locking bracket is simply and efficiently replaced; when the thick arch wire is arranged in the main groove, the extrusion piece is used for extruding the elastic baffle to deform so as to eliminate the clearance between the thick arch wire and the main groove.

Description

Orthodontic self-locking bracket with open auxiliary groove

Technical Field

The invention relates to an orthodontic self-locking bracket with an open auxiliary groove.

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 teeth need to be slightly twisted and corrected, the arch wire does not need to provide large force, so a thin arch wire is generally used in the self-ligating bracket, but because the size of the groove of the self-ligating bracket is far larger than the diameter of the thin arch wire, a large gap is formed between the thin arch wire and the groove, so that the tooth twisting is not easy to correct, a thin horizontal pipe is arranged on the self-ligating bracket mostly, the thin arch wire with high elasticity enters the thin horizontal pipe to be beneficial to correcting the tooth twisting, but the arrangement of the horizontal pipe needs to occupy extra space, the volume and the structural cost of the self-ligating bracket can be increased, and most importantly, because the horizontal pipe is thin, the labor is consumed when the arch wire is penetrated in clinical operation; 2. when the self-locking bracket uses the thick arch wire, the thick arch wire is arranged in the groove of the bracket, the size of the thick arch wire is certainly smaller than that of the groove (because the full-size arch wire is difficult to be completely inserted into the groove or the correcting force is overlarge), so that the gap is inevitably formed between the inner wall of the groove and the thick arch wire, even if the elastic self-locking cover plate structure cannot eliminate the gap, the accurate expression of the preset data of the bracket can be directly influenced, and the correcting treatment course and the correcting effect are influenced.

Disclosure of Invention

The invention provides an orthodontic self-locking bracket with an open auxiliary groove, which is reasonable in structural design, wherein an elastic baffle is arranged in the groove of the bracket, one side of the groove is a main groove, the other side of the groove is an auxiliary groove, and the groove can be respectively used for arranging a thick arch wire and a thin arch wire, so that the bracket can be used for improving the advantages and avoiding the disadvantages and is convenient to operate at different stages of orthodontic treatment. When a doctor sets the thin arch wire in the auxiliary groove, the thin arch wire can be accurately aligned and corrected and twisted through the auxiliary groove of the adjacent bracket through the elastic baffle and the self-locking cover plate structure, the horizontal pipe structure in the existing self-locking bracket is replaced by the open auxiliary groove, the size of the bracket is effectively reduced (discomfort of a patient is reduced), the processing and structure cost is reduced, and most importantly, the thin arch wire is convenient to clinically operate and does not need to be puzzled by the arch wire penetrating into the horizontal pipe; when a thick arch wire is required to be arranged in the main groove, an extrusion piece is inserted into the auxiliary groove, the extrusion piece extrudes the elastic baffle plate from one side of the auxiliary groove to reduce the size of the main groove, then the arch wire positioning device is used for arranging the thick arch wire in the main groove with the reduced size, and the deformation of the elastic baffle plate is used for extruding to eliminate the clearance between the thick arch wire and the main groove, so that the teeth obtain ideal torque, shaft inclination and position, and the orthodontic effect of the teeth is improved; bracket design benefit, simple structure, the succinct high efficiency of doctor's clinical operation has solved the problem that exists among the prior art.

The technical scheme adopted by the invention for solving the technical problems is as follows: an orthodontic self-ligating bracket with an open auxiliary slot, comprising:

the tooth cleaning device comprises a groove body, wherein a base is arranged at the bottom of the groove body and is suitable for being abutted against teeth;

the main groove is arranged in the groove body and is suitable for arranging a thick arch wire;

the auxiliary groove is arranged on one side of the main groove and is suitable for arranging a thin arch wire, and the direction of the auxiliary groove is the same as that of the main groove;

the elastic baffle is arranged between the main groove and the auxiliary groove to separate the main groove from the auxiliary groove, and the elastic baffle is respectively abutted against the thick arch wire or the thin arch wire;

the self-locking cover plate is arranged above the auxiliary groove and the main groove and can be opened or closed, and the self-locking cover plate can limit a thin arch wire and/or a thick arch wire to pass through the self-locking cover plate after being closed;

and the extruding piece is used for being inserted into the auxiliary groove, so that the elastic baffle is elastically deformed towards the direction of the main groove to extrude the thick arch wire in the main groove and limit the movement of the thick arch wire in the main groove.

Furthermore, the depth of the auxiliary groove is smaller than that of the main groove, so that a step is formed at the adjacent position of the auxiliary groove and the main groove, and the side surface of the lower part of the elastic baffle is connected with the step.

Furthermore, a slot is arranged on one side, close to the elastic baffle, of the auxiliary groove, the width dimension of the slot is not more than 1/2 of the width dimension of the auxiliary groove, the extrusion piece is provided with an insertion part, and the insertion part can be inserted into the slot to enable the elastic baffle to elastically deform towards the main groove.

Furthermore, the extrusion piece is designed into an extrusion arch wire, the extrusion arch wire is of a round arch wire structure, and the diameter size of the round arch wire is larger than the width of the auxiliary groove, so that the elastic baffle can elastically deform towards one side of the main groove after the extrusion arch wire is placed in the auxiliary groove.

Further, the extruded part can also be established to the wedge, the length of wedge is not more than distance between the bottom surface of slot and the closed back auto-lock apron, the grafting portion of wedge inserts behind the slot, wedge in the supplementary slot can with elasticity baffle and supplementary slot inside wall looks butt, make the top of elasticity baffle form to the crooked slope of thick arch wire one side to the thick arch wire of restriction removes along the degree of depth and the width direction of main slot ditch.

Furthermore, after the wedge-shaped block is inserted into the auxiliary groove and the slot, the end part of the wedge-shaped block, which is close to the self-locking cover plate, is designed into an arc shape so as to avoid the interference between the extrusion piece and the self-locking cover plate.

Furthermore, the side wall of the elastic baffle facing one side of the main groove is an inclined surface, the inclined surface of the elastic baffle enables the bottom area of the elastic baffle to be larger than the top area of the elastic baffle, and after the elastic baffle is extruded and deformed, the elastic baffle can form an abutting limiting state on two right-angle positions of the side wall of the thick arch wire.

Furthermore, a reinforcing groove is formed in the position, close to the step, of the main groove, and the reinforcing groove is suitable for the bottom of the elastic baffle to extend and be inserted.

Further, the outer periphery of the tank body is provided with an arc surface, so that the tank body is in a spherical groove-shaped structure, the tank body is close to the base, ligation grooves are formed in the positions, corresponding to the base, of the base, the grooving directions of the ligation grooves are the same as those of the main grooves, and the two ligation grooves are respectively arranged at the two sides of the main grooves and are suitable for binding ligation wires.

Furthermore, a traction piece is arranged on one side of each groove body, and the traction pieces between adjacent groove bodies can be connected with each other.

Furthermore, the thin arch wire is respectively abutted against the side wall of the auxiliary groove and the elastic baffle, the depth dimension between the bottom surface of the auxiliary groove and the self-locking cover plate is larger than the diameter dimension of the thin arch wire and is not more than 2 times of the diameter dimension of the thin arch wire, so that the thin arch wire can move in a limited manner along the depth direction of the auxiliary groove.

The bracket adopting the structure has the advantages that the elastic baffle is arranged in the bracket groove, one side of the elastic baffle is the main groove, the other side of the elastic baffle is the auxiliary groove, and the elastic baffle can be respectively used for arranging a thick arch wire and a thin arch wire, so that the bracket can be used for enhancing the advantages and avoiding the disadvantages and is convenient to operate at different stages of orthodontic treatment. When a doctor sets the thin arch wire in the auxiliary groove, the thin arch wire can be accurately aligned and corrected and twisted through the auxiliary groove of the adjacent bracket through the elastic baffle and the self-locking cover plate structure, the horizontal pipe structure in the existing self-locking bracket is replaced by the open auxiliary groove, the size of the bracket is effectively reduced (discomfort of a patient is reduced), the processing and structure cost is reduced, and most importantly, the thin arch wire is convenient to clinically operate and does not need to be puzzled by the arch wire penetrating into the horizontal pipe; when a thick arch wire is required to be arranged in the main groove, an extrusion piece is inserted into the auxiliary groove, the extrusion piece extrudes the elastic baffle plate from one side of the auxiliary groove to reduce the size of the main groove, then the arch wire positioning device is used for arranging the thick arch wire in the main groove with the reduced size, and the deformation of the elastic baffle plate is used for extruding to eliminate the clearance between the thick arch wire and the main groove, so that the teeth obtain ideal torque, shaft inclination and position, and the orthodontic effect of the teeth is improved; bracket design benefit, simple structure, the succinct high efficiency of doctor's clinical operation.

Drawings

FIG. 1 is a schematic side view of the present invention.

Fig. 2 is a side view of the present invention with a thin archwire installed.

Fig. 3 is a schematic view of the configuration of the present invention after installation of an extruded archwire and a thick archwire.

Fig. 4 is a side view schematic of the present invention after installation of the wedge and the thick archwire.

Fig. 5 is a schematic structural view of the invention with a thin archwire installed after the provision of a reinforcing slot.

Fig. 6 is a schematic structural view of the installation of an extrusion arch wire and a thick arch wire after the reinforcing groove is arranged.

Fig. 7 is a schematic structural view of the installation of a wedge block and a thick arch wire after the reinforcing groove is arranged.

Fig. 8 is a side view of the present invention with the traction element in place.

FIG. 9 is a schematic view of the structure of the base assembly when the present invention is applied to the lingual side.

In the figure, 1, a trough body; 2. a base; 3. a main trench; 4. a thick arch wire; 5. an auxiliary groove; 6. a thin arch wire; 7. an elastic baffle plate; 8. a self-locking cover plate; 9. an extrusion; 901. extruding the arch wire; 902. a wedge block; 10. a slot; 11. a reinforcing groove; 12. ligating a groove; 13. a pulling member.

Detailed Description

In order to clearly explain the technical features of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on those shown in the drawings, are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-9, an orthodontic self-locking bracket with an open auxiliary groove comprises a bracket body 1, wherein a base 2 is arranged at the bottom of the bracket body 1, and the base 2 is suitable for abutting against teeth; a main groove 3 is arranged in the groove body 1, and the main groove 3 is suitable for arranging a thick arch wire 4; an auxiliary groove 5 is arranged on one side of the main groove 3 and is suitable for arranging a thin arch wire 6, and the direction of the auxiliary groove 5 is the same as that of the main groove 3; an elastic baffle 7 is arranged between the main groove 3 and the auxiliary groove 5 to separate the main groove 3 and the auxiliary groove 5, and the elastic baffle 7 is respectively abutted against the thick arch wire 4 or the thin arch wire 6; a self-locking cover plate 8 is arranged above the auxiliary groove 5 and the main groove 3, the self-locking cover plate 8 is a product in the prior art, the self-locking cover plate 8 can be opened or closed, and the self-locking cover plate 8 can limit the thin arch wire 6 and/or the thick arch wire 4 to pass through the self-locking cover plate 8 after being closed; the arch wire drawing device further comprises a pressing piece 9, wherein the pressing piece 9 is inserted into the auxiliary groove 5, and the elastic baffle 7 is elastically deformed towards the main groove 3 so as to press the thick arch wire 4 in the main groove 3 and limit the movement of the thick arch wire 4 in the main groove 3. When the self-locking bracket is used, when a doctor sets the thin arch wire 6 in the auxiliary groove 5, the thin arch wire can be accurately aligned and corrected and twisted through the auxiliary groove 5 of the adjacent bracket through the structures of the elastic baffle 7 and the self-locking cover plate 8, the structure of the horizontal pipe in the existing self-locking bracket is replaced by the open auxiliary groove 5, the size of the bracket is effectively reduced (uncomfortable feeling of a patient is reduced), the processing and structural cost is reduced, and most importantly, the clinical operation is convenient and fast, and the trouble that the arch wire penetrates into the horizontal pipe is avoided; when the thick arch wire 4 needs to be arranged in the main groove 3, an extrusion piece 9 is firstly inserted into the auxiliary groove 5, the extrusion piece 9 extrudes the elastic baffle 7 from one side of the auxiliary groove 5 to reduce the size of the main groove 3, then the arch wire positioning device is used for arranging the thick arch wire 4 in the main groove 3 with the reduced size, and the deformation and extrusion of the elastic baffle 7 are used for eliminating the clearance between the thick arch wire 4 and the main groove 3, so that the teeth obtain ideal torque, shaft inclination and position, and the orthodontic effect of the teeth is improved; bracket design benefit, simple structure, the succinct high efficiency of doctor's clinical operation.

In a preferred embodiment, the depth of the auxiliary groove 5 is smaller than that of the main groove 3 so that the auxiliary groove 5 forms a step adjacent to the main groove 3, and the lower side of the elastic flap 7 is connected to the step. In order to reduce the clearance of the thin arch wire 6 in the auxiliary groove 5 and avoid the overlarge movement amount of the thin arch wire 6 from reducing the positioning effect, the depth of the auxiliary groove 5 is smaller than that of the main groove 3, a step is formed between the auxiliary groove 5 and the main groove 3, the elastic baffle 7 is just arranged at the step position, and the connection reliability of the elastic baffle 7 can be improved.

In a preferred embodiment, a slot 10 is arranged in the auxiliary groove 5 at one side close to the elastic baffle 7, the width dimension of the slot 10 does not exceed 1/2 of the width dimension of the auxiliary groove 5, the extrusion piece 9 is provided with a plug part 901, and the plug part 901 can be inserted into the slot 10 to enable the elastic baffle 7 to elastically deform towards the main groove 3. In order to ensure that the extrusion piece 9 fully extrudes the elastic baffle 7, the slot 10 is arranged, so that the problem that the deformation of the elastic baffle 7 is insufficient due to the fact that the contact surface between the extrusion piece 9 and the elastic baffle 7 is too small because the depth of the auxiliary groove 5 is not enough is avoided, and the extrusion deformation capacity of the extrusion piece 9 on the elastic baffle 7 is enhanced.

In a preferred embodiment, as shown in fig. 3, the pressing member 9 is configured to press the arch wire 901, the pressing arch wire 901 is configured to have a circular arch wire diameter larger than the width of the auxiliary groove 5, and the elastic baffle 7 can be elastically deformed toward the main groove 3 side after the pressing arch wire 901 is inserted. The common round arch wire in the clinical field is directly utilized to extrude the elastic baffle 7, the local materials are used, the use is convenient, no extra accessory is required to be designed, and the cost is effectively controlled.

In an alternative embodiment, as shown in fig. 4, the pressing member 9 may be further configured as a wedge 902, the length of the wedge 902 is not greater than the distance between the bottom surface of the slot 10 and the closed self-locking cover plate 8, after the insertion portion of the wedge 902 is inserted into the slot 10, the wedge 902 in the auxiliary slot 5 can abut against the elastic baffle 7 and the inner side wall of the auxiliary slot 5, so that the top of the elastic baffle 7 forms a bending inclination towards one side of the thick arch wire 4 to limit the movement of the thick arch wire 4 along the depth and width directions of the main slot 3.

In a preferred embodiment, as shown in fig. 3, the side wall of the elastic baffle 7 facing the main groove 3 is a slope, the slope of the elastic baffle 7 makes the bottom area of the elastic baffle 7 larger than the top area of the elastic baffle 7, and the elastic baffle 7 can form an abutting limiting state for two right-angle positions of the side wall of the thick arch wire 4 after the elastic baffle 7 is deformed by compression. In this embodiment, after the elastic baffle 7 is squeezed by the squeezing member 9, the upper portion of the elastic baffle 7 is squeezed by the squeezing member 9 and bends toward the main groove 3, so that a certain position of the upper portion of the elastic baffle 7 abuts against the corresponding right-angled portion of the thick arch wire 4 to limit the movement of the thick arch wire 4, and the bottom portion of the elastic baffle 7 can abut against the bottom right-angled portion of the side wall of the thick arch wire 4 to further limit the movement of the thick arch wire 4.

In a preferred embodiment, as shown in fig. 4-7, the main channel 3 is provided with a reinforcing groove 11 near the step, and the reinforcing groove 11 is adapted to be inserted into the bottom of the elastic baffle 7. In order to further improve the connection reliability of the elastic baffle 7 and avoid the problem that the bottom of the elastic baffle 7 deviates after being extruded, the reinforcing groove 11 is arranged, so that the bottom of the elastic baffle 7 extends into the reinforcing groove 11, and the connection reliability of the elastic baffle 7 is improved.

In a preferred embodiment, the outer part of the tank body 1 is a circular arc surface, so that the tank body 1 forms a spherical groove-shaped structure, the position, close to the base 2, of the outer part of the tank body 1 is provided with two ligation grooves 12, the slotting direction of the ligation grooves 12 is the same as the direction of the main groove 3, and the two ligation grooves 12 are respectively arranged at two sides of the main groove 3 and are suitable for binding ligation wires. The elastic baffle 7 firmly positions the thick arch wire 4 through the extrusion piece 9, and eliminates the clearance between the thick arch wire 4 and the main groove 3, so that the subsequent ligation operation of the thick arch wire 4 can be omitted, the traditional tie wing structure is omitted, the groove body 1 is in a spherical groove state, the surface of the groove body 1 can be smoother, the friction damage of the existing tie wing 12 to the organism in the oral cavity is avoided, and the product quality is improved; in order to facilitate the ligature wire binding operation in clinical operation, a unique ligature groove 12 structure is arranged outside the groove body 1, so that the protective effect of the ball groove structure on the oral cavity is guaranteed, and convenience is brought to ligature wire binding.

In a preferred embodiment, referring to fig. 8, the tank body 1 is provided with a traction piece 13 at one side, and the traction pieces 13 between adjacent tank bodies 1 can be connected with each other. In clinical orthodontics, force application is sometimes needed between adjacent teeth, and at this time, the connecting rope can be used for connecting the adjacent traction pieces 13 to realize force application operation. Furthermore, the traction piece 13 can be in the shape of a traction hook, so that the connection and the use are convenient.

In a preferred embodiment, as shown in fig. 4 and 7, after the pressing member 9 is inserted into the auxiliary groove 5 and the insertion groove 10, the end portion thereof adjacent to the self-locking cover plate 8 is formed in an arc shape to prevent the pressing member 9 and the self-locking cover plate 8 from interfering.

In a preferred embodiment, the thin arch wire 6 is respectively arranged in contact with the side wall of the auxiliary groove 5 and the elastic baffle 7, and the depth dimension between the bottom surface of the auxiliary groove 5 and the self-locking cover plate 8 is larger than the diameter dimension of the thin arch wire 6 and does not exceed 2 times of the diameter dimension of the thin arch wire 6, so that the thin arch wire 6 can move in the depth direction of the auxiliary groove 5 in a limited way. In order to place the thin arch wire 6 and the thick arch wire 4, the groove in the prior art can be used for placing the thick arch wire 4, the size of the groove is larger than that of the thick arch wire 4, and a large gap is formed between the thin arch wire 6 and the groove.

Referring to fig. 9, the bracket structure in the present disclosure adopts a brand-new spherical groove shape, and can be completely connected to the base structure of the lingual bracket, and can be well placed at the lingual corresponding position of the tooth, so that the application range is wider; however, the clinical use requirements of the lingual bracket are considered, so that one side of the main groove 3 is close to the lingual side, the grooving angles of the main groove 3 and the auxiliary groove 5 relative to the groove body 1 are specially set, after the groove body 1 is arranged at the corresponding position of the lingual side of the tooth, the included angles between the depth directions of the main groove 3 and the auxiliary groove 5 relative to the groove body and the horizontal plane are less than 45 degrees, correspondingly, the appearance and the position of the ligation grooves 12 at the two sides of the groove body 1 are also adaptively adjusted, and the whole bracket structure is more adaptive to the lingual environment.

It can be understood that the structure of the self-locking cover plate 8 can be a sliding cover structure in the prior art, and the self-locking cover plate is convenient to use and reliable in structure.

The above-described embodiments should not be construed as limiting the scope of the invention, and any alternative modifications or alterations to the embodiments of the present invention will be apparent to those skilled in the art.

The present invention is not described in detail, but is known to those skilled in the art.

Claims

1. An orthodontic self-ligating bracket with an open auxiliary groove, comprising:

2. The orthodontic self-ligating bracket of claim 1, wherein the depth of the auxiliary groove is less than the depth of the main groove, such that the auxiliary groove and the main groove are adjacent to each other to form a step, and the lower side of the elastic baffle is connected with the step.

3. The orthodontic self-ligating bracket of claim 2, wherein a slot is formed in the auxiliary slot adjacent to the resilient tab, the slot having a width not exceeding 1/2 of the width of the auxiliary slot, the extrusion member having an insertion portion insertable into the slot to allow the resilient tab to resiliently deform in the direction of the main slot.

4. The orthodontic self-ligating bracket of claim 3, wherein the extrusion member is configured as an extrusion arch wire, the extrusion arch wire is of a circular arch wire structure, and the diameter of the circular arch wire is larger than the width of the auxiliary groove, so that the extrusion arch wire can elastically deform towards the main groove side after being placed in the groove.

5. The orthodontic self-locking bracket with the open auxiliary groove as claimed in claim 3, wherein the extrusion part can be further designed into a wedge-shaped block, the length of the wedge-shaped block is not more than the distance between the bottom surface of the slot and the closed rear self-locking cover plate, after the insertion part of the wedge-shaped block is inserted into the slot, the wedge-shaped block in the auxiliary groove can abut against the elastic baffle and the inner side wall of the auxiliary groove, so that the top of the elastic baffle forms a bending inclination towards one side of the thick arch wire, thereby limiting the movement of the thick arch wire along the depth and width directions of the main groove.

6. The orthodontic self-locking bracket with the auxiliary open groove as claimed in claim 4 or 5, wherein the side wall of the elastic baffle facing the main groove is a slope, the slope of the elastic baffle makes the bottom area of the elastic baffle larger than the top area of the elastic baffle, so that after the elastic baffle is extruded and deformed, the elastic baffle can form an abutting limiting state for two right-angle positions of the side wall of the thick archwire.

7. The orthodontic self-ligating bracket of claim 6, wherein the main slot is provided with a reinforcing groove near the step, and the reinforcing groove is suitable for the bottom of the elastic baffle to be inserted into.

8. The orthodontic self-ligating bracket of claim 7, wherein the slot body is configured as a circular arc surface to form a spherical groove-like structure, the slot body is configured with ligation slots at positions near the base, the direction of the ligation slots is the same as the direction of the main slot, and the ligation slots are respectively configured with two ligation slots at two sides of the main slot to be suitable for binding a ligation wire.

9. The orthodontic self-ligating bracket of claim 8, wherein a pulling member is disposed on one side of each slot, and wherein the pulling members of adjacent slots are interconnected.

10. The orthodontic self-locking bracket with the open auxiliary groove as claimed in claim 8 or 9, wherein the thin arch wire is respectively abutted against the side wall of the auxiliary groove and the elastic baffle, and the depth between the bottom surface of the auxiliary groove and the self-locking cover plate is larger than the diameter of the thin arch wire and is not more than 2 times of the diameter of the thin arch wire, so that the thin arch wire can move in the depth direction of the auxiliary groove in a limited way.