CN213047392U - Indirectly-adhered bracket transfer guide plate - Google Patents

Abstract

The application discloses support groove of indirect bonding shifts baffle, including being used for with the interlock portion of tooth occlusal surface complex and being used for the fixed bracket anchor clamps in groove, support the groove anchor clamps and include: the labial pressing sheet is connected with the occlusion part and applies acting force through self deformation to enable the bracket to be attached to the side surface of the tooth labial; the retention assembly comprises a plurality of retention arms which are oppositely arranged in the tooth arrangement direction, and one end of each retention arm, which is far away from the occlusion part, is provided with a positioning part which acts with the bracket; a release groove is arranged between each retention arm and the labial pressing sheet; each retention arm, each positioning part, the labial pressing sheet and the tooth labial side surround to form a clamping space for restraining the bracket. The technical scheme that this application discloses through the lip to the setting of preforming and maintenance subassembly, has compromise the high positioning accuracy of holding in the palm groove installation and has moved the advantage that the easy separation of baffle dismantlement in-process in the groove, and the structure is succinct stable simultaneously, has higher spreading value.

Description

Indirectly-adhered bracket transfer guide plate

Technical Field

The application relates to the field of dentistry, in particular to an indirectly pasted bracket transfer guide plate.

Background

In the process of orthodontic treatment of teeth, orthodontic brackets are fixed on the surfaces of teeth, an arch wire penetrates through an arch wire groove (also called a square wire groove) on the brackets, the arch wire is directly ligated into the arch wire groove of the brackets through ligating rubber rings or ligating wire steel wires, and the straightening force of the arch wire is transmitted to the teeth through the brackets, so that the teeth generate expected movement, and the aim of straightening the teeth is fulfilled. The bracket has strict requirements as to the attachment position on the tooth, since this is an important factor affecting the orthodontic effect.

Traditional orthodontic bracket bonds, it is manual according to doctor's clinical experience to carry out the maintenance basically to direction, the angle of bracket maintenance can not accurate location, and the operation is complicated, consumes a large amount of clinical times of seeing a doctor of clinician simultaneously, and the patient is for cooperating the doctor operation moreover, can keep opening a mouthful state for a long time, leads to the patient to be tired easily.

And traditional support groove bonding relies on doctor's experience, appears judging the error easily or support the groove condition of coming off, and the groove just needs to bond again this moment, and patient's tooth face also can produce certain adhesive and remain.

And when the bracket is bonded, the usage amount of the bonding agent is also completed by the bonding experience of a doctor, if the doctor corrects the bracket position on the surface of the tooth of the patient, too much bonding agent is generated on the surface of the tooth of the patient, the clinician needs to spend time and energy to remove the excessive bonding agent, the processing process is time-consuming and complicated, and the requirement on the clinical operation skill of the doctor is extremely high.

Accordingly, the prior art is yet to be improved and developed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application discloses indirect bracket transfer baffle of pasting, including being used for with the occlusal surface complex occlusal portion of tooth and the bracket anchor clamps that are used for the fixed bracket, bracket anchor clamps include:

the labial pressing sheet is connected with the occlusion part and applies acting force through self deformation to enable the bracket to be attached to the side surface of the tooth labial;

the retention assembly comprises a plurality of retention arms which are oppositely arranged in the tooth arrangement direction, and one end of each retention arm, which is far away from the occlusion part, is provided with a positioning part which acts with the bracket; a release groove is arranged between each retention arm and the labial pressing sheet;

each retention arm, each positioning part, the labial pressing sheet and the tooth labial side surround to form a clamping space for restraining the bracket.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the lip tablet has:

the positioning state is that the bracket is pressed towards the labial side of the tooth;

a release state, driven by external force to be away from the labial side of the tooth;

the release groove is used for releasing the deformation amount of the lip pressing piece under different states.

Optionally, the release groove is arranged along the extending direction of the retention arm and communicates the clamping space and the outside, and the ratio of the length of the release groove to the extending length of the retention arm is 0.3 to 0.9.

Optionally, the bracket fixture further comprises a fixture base, the fixture base is connected with the occlusion part, each retention arm and the labial pressure plate are connected with the fixture base, and one side of the fixture base, which faces the clamping space, is provided with a constraint part which acts on the bracket.

Optionally, the restraining part is a positioning groove complementary to the shape of the bracket or is in friction fit with the bracket; the direction of the restraining part back to the bottom side of the clamp base is a separation path of the bracket, and the bracket is separated from the restraining part when the occlusion part is far away from the occlusion surface of the teeth.

Optionally, a direction of the clamping space facing away from the clamp base is a releasing path of the bracket, and at least a part of the positioning portion extends to the releasing path.

Optionally, the positioning portion is a positioning hook formed by extending and bending the material of the retention arm, and the positioning hook is matched with the bracket and prevents the bracket from moving on the disengagement path.

Optionally, each positioning portion and the corresponding retention arm are arranged in the following manner:

a stress weak structure is arranged between the two; or

The two are flexibly connected.

Optionally, the retention arm is shorter or longer or uniform than the lip tablet in the direction of extension of the retention arm.

Optionally, a gap is formed between the retention arm and the labial surface of the tooth, and the gap is an operation area, and the mesh bottom for bonding the bracket is exposed to the operation area.

The technical scheme that this application discloses through the lip to the setting of preforming and maintenance subassembly, has compromise the high positioning accuracy of holding in the palm groove installation and has moved the advantage that the easy separation of baffle dismantlement in-process in the groove, and the structure is succinct stable simultaneously, has higher spreading value.

Specific advantageous technical effects will be further explained in conjunction with specific structures or steps in the detailed description.

Drawings

FIG. 1a is a schematic view of a bracket transfer guide with an embodiment of indirect attachment;

FIG. 1b is an enlarged view of the bracket transfer guide of FIG. 1 a;

FIG. 2a is a schematic side view of a bracket transfer guide according to an embodiment;

FIG. 2b is a schematic view of the bracket transfer guide of FIG. 2a in cooperation with a corresponding tooth;

FIG. 3 is a schematic view of the bracket transfer guide of FIG. 1a from another perspective;

FIG. 4 is a simulated interface view of the bracket transfer guide of an embodiment.

The reference numerals in the figures are illustrated as follows:

100. an engaging portion; 101. the labial side of the teeth; 102. occlusal surfaces of teeth; 103. a bracket;

200. a bracket clamp; 210. lip tabletting;

220. a retention assembly; 221. a retention arm; 222. a positioning part; 223. a relief groove; 224. a restraint section; 225. a clamp base;

230. a clamping space; 231. an operating area.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The fixed orthodontic clinical requirement appliance (comprising the bracket 103 and the buccal tube) can be attached to the tooth surface, so that the data in the bracket 103 can be accurately expressed, and the bonding strength is guaranteed.

Due to the overlapping influence of intraoral scanning precision or model precision, bracket 103 precision, assembly precision and 3D printing precision, in practice, the 3D printing indirect bonding guide plate is difficult to ensure that the bracket 103 assembled on the fixture is just attached to the tooth surface. Therefore, in the design and manufacture of the actual indirect bonding guide plate, the effect of the bracket 103 tightly adhering to the tooth surface is often achieved by appropriately immersing the bottom plate of the bracket 103 into the tooth surface, or by bonding various resin materials in advance to the bottom of the bracket 103 to fill the gap between the bracket 103 and the tooth surface.

The clamps for clamping the bracket 103 in the hard 3D printing guide plate are all integrated, if a mode of properly immersing the bottom plate of the bracket 103 into the tooth surface during design is adopted, the whole transfer guide plate is difficult to be completely positioned, a positioning effect well fitting with an occlusal surface is difficult to form, and the impression is that the guide plate is integrally ejected out towards the labial and buccal sides; therefore, the resin is often pre-placed on the bottom surface of the bracket 103 to ensure that the bracket 103 is attached to the tooth surface, and this will seriously affect the expression accuracy of the pre-placed data of the bracket 103 and the bonding strength.

Soft elasticity 3D printed guide plate has appeared among the prior art, and this technique can guarantee the guide plate effect of getting into the position and compress tightly the effect through the mode of invading the tooth face with support groove 103 bottom plate moderate degree during the design, but this type of 3D printed material viscosity is high, mobility is poor, and it is lower to print the detail precision, can influence the transfer precision of whole indirect bonding, often not adopted.

This application adopts stereoplasm (compare in soft elasticity) 3D material to print, and the anchor clamps that are used for holding bracket 103 in the baffle adopt the lip to the design of preforming 210 with maintenance subassembly 220 separation, makes the lip to preforming 210 when the opposite direction atress with the tooth face, can moderate degree toward the direction of force deformation. When designing digital location scheme, invade the tooth face with holding in the palm groove 103 bottom plate moderate degree, when the whole wearing-in of support groove 103 transfer baffle in this application, hold in the palm groove 103 bottom and withstand the tooth face, the moderate degree struts the lip to preforming 210, make support groove 103 transfer baffle can be gone into the position completely and form good agreeing with in the occlusal surface, the effect of holding in the palm groove 103 and pasting tight tooth face has been ensured simultaneously, under the accurate circumstances of shifting of completion digital location scheme, the requirement of orthodontic clinical bonding support groove 103 has been reached, the concrete performance is that support groove 103 can paste tight tooth face, ensure that the data in holding in the palm groove 103 can accurate expression, guarantee bonding strength simultaneously.

Referring to fig. 1a to 4, the present application discloses an indirectly attached bracket 103 transfer guide including a bite 100 for mating with an occlusal surface 102 of a tooth and a bracket clip 200 for fixing the bracket 103, the bracket clip 200 including:

a labial pad 210 which is coupled to the bite 100 and applies a force by self-deformation to make the bracket 103 abut against the labial surface 101 of the tooth;

a retention assembly 220, including a plurality of retention arms 221 oppositely arranged in the tooth arrangement direction, wherein one end of each retention arm 221 far away from the occlusion part 100 is provided with a positioning part 222 acting with the bracket 103; a release groove 223 is arranged between each retention arm 221 and the lip pressing piece 210;

the retention arms 221, the positioning parts 222, the labial pressing sheets 210 and the labial sides 101 surround to form a clamping space 230 for restraining the bracket 103.

The primary requirement for the positioning effect of the bracket 103 transfer guide is the precision of the fit of the bite 100. The bite 100 achieves the positioning effect by conforming to the occlusal surface 102 of the tooth, which is connected to the bracket holder 200 of the bracket 103 toward the tooth. Therefore, in manufacturing, the bite portion 100 is formed by bonding the occlusal surface 102 of the tooth with software, and ensures good fit with the occlusal surface 102 of the tooth, thereby ensuring a positioning effect.

The labial pressing sheet 210 is mainly used for applying a force to the bracket 103 towards the tooth labial side 101 and restraining the movement of the bracket 103 on the side perpendicular to the tooth labial side 101; the retention component 220 achieves the constraint of the bracket 103 in the tooth arrangement direction through a plurality of retention arms 221; the positioning portion 222 achieves restraint of the bracket 103 on the lingual jaw of the tooth by itself. The clamping space 230 surrounded by the retention arms 221, the positioning parts 222, the labial pressing sheets 210 and the labial sides 101 of the teeth can effectively limit the movement of the bracket 103 in a three-dimensional space, determine the position relation of the bracket 103 and improve the positioning precision. In the present application, while providing an efficient restraint, a solution of how to release the restraint is also proposed, wherein the release groove 223 is the key of the releasing action.

In changing the state of the lip laminate 210, in one embodiment, is referred to as having:

in the positioned state, the bracket 103 is pressed towards the labial surface 101 of the tooth;

a released state, driven by external force to be away from the labial surface 101 of the tooth;

the release groove 223 is used to release the amount of deformation of the lip to the tablet 210 in various states.

The external force applied to the lip pressing piece 210 when the lip pressing piece 210 changes state may be directly applied to the lip pressing piece 210, or may be applied to other components and then transmitted to the lip pressing piece 210. For example, referring to one embodiment, the restraint 224 is a detent complementary in shape to the bracket 103 or a friction fit with the bracket 103; the direction of the restraint 224 away from the underside of the clamp base 225 is the path of separation of the brackets 103, and the brackets 103 are separated from the restraint 224 when the bite 100 is moved away from the occlusal surface 102 of the tooth. During this process, stress is transferred to the labial pressure plate 210 during the process that the bite 100 is away from the occlusal surface 102 of the tooth, and the movement stroke is finally released by the deformation of the labial pressure plate 210 and the release groove 223. Details regarding the separation path will be described in the next section, and will not be mentioned here for the moment. The release groove 223 is not only a stress release position, but also a deformation release position, and through the arrangement of the release groove 223, the lip can obtain a larger movement stroke to the pressing sheet 210, thereby bringing about a positioning effect which cannot be provided in the prior art.

In the arrangement details of the relief groove 223, the relief groove 223 can realize the relief effect by reducing the strength of the material and the size of the material. It can also be referred to that in an embodiment, the relief groove 223 is arranged along the extending direction of the retention arm 221 and communicates the grip space 230 and the outside, and the ratio of the length of the relief groove 223 to the extending length of the retention arm 221 is 0.3 to 0.9.

The relief groove 223 is more convenient in production, especially in the form of 3D printing, which is commonly used in the art, by forming a relief space by communicating the holding space 230 with the outside. The relief groove 223 is disposed along the extension of the retention arm 221 to better conform to the path of movement of the lip toward the blade 210, the greater the travel of the lip to deform toward the side of the blade 210 away from the clamp base 225. Meanwhile, the size of the relief groove 223 is too small, which may reduce the adaptability and fault tolerance of the bracket clamp 200; the relief groove 223 is too large, which may reduce the stability of the bracket clip 200.

The release groove 223 is used for separating the bracket 103 from the bracket 103 transfer catheter, and the bracket 103 is positioned by the bracket clamp 200. In the detailed arrangement of the bracket clamp 200, referring to an embodiment, the bracket clamp 200 further includes a clamp base 225, the clamp base 225 is connected to the occlusion portion 100, each of the retention arms 221 and the lip pressing piece 210 is connected to the clamp base 225, and a restriction portion 224 for engaging with the bracket 103 is provided on a side of the clamp base 225 facing the holding space 230.

In the present embodiment, the bracket 103 transfer guide is formed integrally, and 3D printing techniques that are conventional in the art may be used. The fixture base 225 can provide a certain movement space through the deformation of the material thereof in addition to connecting the components, thereby further improving the adaptability and fault tolerance of the bracket fixture 200. The constraining portion 224 can further improve the ability of the bracket clamp 200 to position the bracket 103, thereby improving accuracy.

In the details of the arrangement of the constraining section 224, reference is made to an embodiment in which the constraining section 224 is a detent (not shown) complementary in shape to the bracket 103 or a friction fit with the bracket 103; the direction of the restraint 224 away from the underside of the clamp base 225 is the path of separation of the brackets 103, and the brackets 103 are separated from the restraint 224 when the bite 100 is moved away from the occlusal surface 102 of the tooth.

The binding 224 may enhance the attachment of the bracket 103 to the bracket clip 200 in a number of ways, such as in the form of the detents or interference fits mentioned above. In effect, the upper part of the bracket 103 which is arranged in the bracket can form good combination with the bracket without being influenced by external force, and can not fall off.

When the bracket 103 is separated from the restraint 224, the bracket 103 may not actually be able to fully exit the grip area. Specifically, in an embodiment, a direction of the clamping space 230 away from the clamp base 225 is a releasing path of the bracket 103, and at least a portion of the positioning portion 222 extends to the releasing path.

The blocking of the positioning part 222 prevents the bracket 103 from easily escaping from the clamping area, thereby improving the positioning effect.

In the specific arrangement of the positioning portion 222, referring to an embodiment, the positioning portion 222 is a positioning hook formed by extending and bending the material of the retention arm 221, and the positioning hook is engaged with the bracket 103 and prevents the bracket 103 from moving on the withdrawal path. With reference to fig. 1b, the retention arm is attached to the clip base 225 and is separate from the lip pad 210, an integral elongated hook-retaining member. The retention component 220 composed of retention arms is arranged above the net bottom and clings to two sides of the bracket 103, and the interaction is kept through certain pretightening force, so that a certain clamping effect is realized. Meanwhile, the lower edge of the ligating wing of the tight bracket 103 is attached to the upper part of the positioning hook, the gingival-facing surface of the tight bracket 103 is attached to the inner side of the positioning hook and matched with the constraint part 224, so that the bracket 103 can be stably fixed by the bracket clamp 200 without external force, and the left and right, up and down, front and back movement can not be generated. Dimensionally, referring to one embodiment, the retention arms 221 are shorter than the lip preforms 210 in the direction of extension of the retention arms 221. The shorter retention arm facilitates the backing slot 103 to be removed. Referring to an embodiment, in the direction of extension of the retention arm 221, the retention arm 221 is longer than the lip tab 210. The longer retention arm provides better fixation. Referring to an embodiment, in the direction of extension of the retention arm 221, the retention arm 221 is of equal length to the lip laminate 210. This setting is compared and can compromise both advantages between, and is corresponding, also can bring corresponding not enough. The specific setting can be adjusted according to the actual situation.

In the detail of the retention arm, referring to an embodiment, a gap is provided between the retention arm 221 and the labial surface 101 of the tooth and the gap is an operation area 231, and the mesh bottom of the bracket 103 for bonding is exposed to the operation area 231.

The operation region 231 can facilitate the operator to perform the bonding operation and remove the excessive bonding medium, thereby improving the working effect.

As mentioned above, the bracket 103 transfer guide has the advantages of good positioning effect and convenient separation. In the detailed arrangement, referring to an embodiment, each positioning portion 222 and the corresponding retention arm 221 are arranged in the following manner:

a stress weak structure is arranged between the two; or

The two are flexibly connected.

The deformation or the fracture of location portion 222 can be effectual in coordination with release groove 223 and enlarge the interior volume of centre gripping space 230 to make things convenient for bracket 103 to deviate from centre gripping space 230, make things convenient for the separation, avoid appearing needing to destroy bracket 103 and shift the problem that the baffle was dismantled just can convenient realization bracket 103 shifts the baffle. When the indirect bonding is completed, the entire engaging portion 100 of the slot transfer guide is opened toward the labial side (i.e., the movement in the direction a in fig. 4), the retention assembly 220 and the labial pressing plate 210 are slightly spread apart, so that the bracket 103 is separated from the bracket clip 200.

In the production of the bracket transfer guide plate, each bracket clamp is designed according to the shape data of each bracket, then the final bracket positioning scheme is adjusted by using three-dimensional software, and the positioning positions of the occlusion part and the bracket clamp are generated according to the software simulation result to form the final bracket transfer guide plate.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. When technical features in different embodiments are represented in the same drawing, it can be seen that the drawing also discloses a combination of the embodiments concerned.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims (10)

1. The indirect bracket that pastes shifts baffle, including being used for with the interlock of tooth occlusal surface complex with be used for the fixed bracket anchor clamps in groove, its characterized in that, hold in the palm the groove anchor clamps and include:

the labial pressing sheet is connected with the occlusion part and applies acting force through self deformation to enable the bracket to be attached to the side surface of the tooth labial;

the retention assembly comprises a plurality of retention arms which are oppositely arranged in the tooth arrangement direction, and one end of each retention arm, which is far away from the occlusion part, is provided with a positioning part which acts with the bracket; a release groove is arranged between each retention arm and the labial pressing sheet;

each retention arm, each positioning part, the labial pressing sheet and the tooth labial side surround to form a clamping space for restraining the bracket.

2. The indirectly attachable bracket transfer guide of claim 1, wherein the lip impressor has:

the positioning state is that the bracket is pressed towards the labial side of the tooth;

a release state, driven by external force to be away from the labial side of the tooth;

the release groove is used for releasing the deformation amount of the lip pressing piece under different states.

3. The indirectly attachable bracket transfer guide of claim 2, wherein the relief groove is disposed along the extending direction of the retention arm and communicates the holding space and the outside, and a ratio of a length of the relief groove to an extending length of the retention arm is 0.3 to 0.9.

4. The indirectly attachable bracket transfer guide of claim 1, wherein the bracket clip further comprises a clip base, the clip base is connected to the bite, each retention arm and the labial footplate are connected to the clip base, and a restraining portion for engaging with a bracket is provided on a side of the clip base facing the clipping space.

5. The indirectly attachable bracket transfer guide of claim 4, wherein the restraint is a detent complementary in shape to the bracket or a friction fit with the bracket; the direction of the restraining part back to the bottom side of the clamp base is a separation path of the bracket, and the bracket is separated from the restraining part when the occlusion part is far away from the occlusion surface of the teeth.

6. The indirectly attachable bracket transfer guide of claim 4, wherein the direction of the clamping space away from the clamp base is a pull-out path for the brackets, and at least a portion of the positioning portion extends onto the pull-out path.

7. The indirectly attachable bracket transfer guide of claim 6, wherein the positioning portion is a positioning hook formed by extending and bending the material of the retention arm itself, and the positioning hook is engaged with the bracket and prevents the bracket from moving on the pull-out path.

8. The indirectly attachable bracket transfer guide of claim 7, wherein each positioning portion is disposed between the respective retention arm by:

a stress weak structure is arranged between the two; or

The two are flexibly connected.

9. The indirectly attachable bracket transfer guide of claim 7, wherein the retention arm is shorter or longer or uniform than the labial pad in the direction of extension of the retention arm.

10. The indirectly attachable bracket transfer guide of claim 1, wherein a gap is provided between the retention arm and the labial surface of the tooth and the gap is an operation area, and the mesh bottom of the bracket for adhesion is exposed to the operation area.

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