CN111888018A - Self-ligating orthodontic brackets, orthotic devices, and systems - Google Patents

Abstract

The present application discloses a self-locking orthodontic bracket, an orthodontic device and a system, wherein the self-locking orthodontic bracket comprises a net bottom, the top side of the net bottom is provided with two fixing ears, and each fixing ear is connected to the net bottom. Each fixed ear is provided with an arch wire hole for allowing the dental arch wire to pass through, the arch wire hole is a fully closed structure or partially has an open area in the circumferential direction, and the arch wire on the two fixed ears is The wire holes are arranged relative to each other to form an arch wire passage channel. The technical solution disclosed in this application replaces the groove body in the traditional self-locking bracket through the design of the fixing ear, thereby avoiding the influence of the complex structure on the production and daily use cleaning; at the same time, the structure of the fixing ear can overcome the lock in the traditional technical solution. The problem that the tablet is easy to fail can bring stable and convenient use experience to the patient.

Description

Self-locking orthodontic brackets, orthodontic devices and systems

technical field

The present application relates to the field of orthodontics, in particular to self-locking orthodontic brackets, orthodontic devices and systems.

Background technique

The existing active self-locking bracket structure basically adopts the SPEED form or the flip form structure. The biggest advantage of this structural bracket is that the passive ligation function can be realized when the thin round wire is used in the early treatment, and the active ligation function can be realized when the thick wire is replaced. Ligation function. For example, the Chinese patent document with publication number CN209751255U discloses a self-locking bracket for orthodontics, which includes an orthodontic bracket body, a sliding cover, a pin, an elastic member and a net bottom, and the orthodontic bracket body is provided with A groove capable of accommodating orthodontic dental archwires, a first ligation wing and a second ligation wing are respectively provided on both sides of the groove, and the first ligation wing is provided with a guide groove for the sliding cover to slide, so The sliding cover is installed in the guide groove and the sliding direction is perpendicular to the direction of the groove, the bottom of the guide groove is provided with a hole for the pin to pass through, and the bottom of the sliding cover is provided with a blind hole, and the blind hole is "Only" shape, the elastic member is embedded in the blind hole, the elastic member is a spring sheet or a spring pin, and the shape is "︺" or "V", and the mesh bottom is set on the orthodontic bracket On the back of the groove body, after the sliding cover is closed, the orthodontic tooth arch wire is fixed in the groove on the orthodontic bracket body.

The inventor found that the biggest problem of the above-mentioned self-locking brackets with active ligation function is that the clinical cover sheet is easily damaged after being stressed; at the same time, due to its complex structure, it is difficult for patients to achieve self-locking brackets during daily use. clean, there is room for improvement.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the present application discloses a self-locking orthodontic bracket, which includes a net bottom with two fixing ears on the top side of the net bottom, and each fixing ear and the net bottom are integrally structured or separated. body fixed structure;

Each fixing ear is respectively provided with an arch wire hole that allows the dental arch wire to pass through, the arch wire hole is a fully closed structure in the circumferential direction or has an open area in part, and the arch wire holes on the two fixing ears are arranged opposite to form an arch wire passage channel .

Several optional methods are also provided below, which are not intended to be additional limitations on the above-mentioned overall solution, but are merely further additions or optimizations. On the premise of no technical or logical contradiction, each optional method can be independently implemented for the above-mentioned overall solution. The combination can also be a combination between multiple optional ways.

Optionally, the fixing ears are elastic rings.

Optionally, each elastic ring includes a fixed side connected to the mesh bottom and an extended side extended away from the mesh bottom; the two elastic rings gradually move away from the fixed side to the extended side or extend equidistantly or approach each other.

Optionally, the archwire hole includes:

a guide part, located on the side of the arch wire hole away from the mesh bottom and allowing the dental arch wire to move relatively;

The engaging part is located on the side of the arch wire hole close to the mesh bottom and is engaged with the dental arch wire.

Optionally, the width of the bottom side of the guide portion gradually converges until it is abutted with the engaging portion, and the engaging portion extends at the same width and has a width that matches the size of the dental arch wire.

Optionally, the axial directions of the two archwire holes are set at an included angle.

Optionally, the middle part of the top side of the mesh bottom is raised and smoothly transitions from the middle part to both sides to form two transition surfaces, and the two fixing ears are respectively arranged on the two transition surfaces; The transition surfaces are roughly parallel.

The present application also discloses an orthodontic device, comprising the self-locking orthodontic bracket according to the above technical solution and a ligation wire arranged on the self-locking orthodontic bracket;

The top side or the middle part of the fixed ear is provided with a widened part protruding relative to the bottom side, the ligation wire hugs at least one fixed ear, and the ligation wire drives the dental arch wire and the mesh under the push of the widened part. The top side of the bottom rests.

Optionally, the ligating wire hugs the two fixing ears, and the sides of the two fixing ears that are far away from the net bottom are separated from each other so that the ligating wire moves toward the net bottom.

The present application also discloses an orthodontic device system, comprising the self-locking orthodontic bracket in the above technical solution, a ligation wire arranged on the self-locking orthodontic bracket, and a ligature threading on the self-locking orthodontic bracket A dental arch wire; the dental arch wire applies an orthodontic force through the self-locking orthodontic bracket.

The technical solution disclosed in this application replaces the groove body in the traditional self-locking bracket through the design of the fixing ear, thereby avoiding the influence of the complex structure on the production and daily use cleaning; at the same time, the structure of the fixing ear can overcome the lock in the traditional technical solution. The problem that the tablet is easy to fail can bring a stable and convenient use experience to the patient.

Specific beneficial technical effects will be further explained in conjunction with specific structures or steps in the specific embodiments.

Description of drawings

1a to 1d are schematic diagrams of self-locking orthodontic brackets in one embodiment;

2 is a schematic diagram of a rectifying device in an embodiment;

3a and 3b are schematic diagrams of an orthotic device system in one embodiment.

The reference numerals in the figure are explained as follows:

1. Bottom of the net; 11. Transition surface;

2. Fixed ear; 21. Arch wire hole; 211, Guide part; 212, Engagement part; 22, Arch wire passage channel; 23, Fixed side;

3, ligature wire;

4, dental arch wire.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

It should be noted that when a component is referred to as being "connected" to another component, it can be directly connected to the other component or an intervening component may also exist. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a co-existing centered component.

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

1a to 1d, the present application discloses a self-locking orthodontic bracket, including a net bottom 1, the top side of the net bottom 1 is provided with two fixing ears 2, and each fixing ear 2 and the net bottom 1 have an integral structure. or split fixed structure;

Each of the fixing ears 2 is respectively provided with an arch wire hole 21 that allows the dental arch wire 4 to pass through. The arch wire hole 21 is a fully closed structure in the circumferential direction or partially has an open area, and the arch wire holes 21 on the two fixing ears 2 are arranged opposite to form an arch wire. The wire passes through the channel 22 .

The fixed ear 2 plays the role of the groove body in the traditional self-locking bracket, which can restrain the dental arch wire 4 and transmit the force of the dental arch wire 4 to the teeth to achieve the effect of orthodontics. The fixed ear 2 can restrain the dental arch wire 4 by itself, so it is not necessary to set the cover piece in the traditional self-locking bracket, which avoids the problem that the cover piece is easy to fail after being opened and closed multiple times, and improves the self-locking orthodontic bracket. tank stability. Correspondingly, due to the change in structure, the complex structure of the traditional self-locking bracket is avoided, which is convenient for cleaning and maintenance, and is easier to operate in the daily wearing process of patients, thereby improving user experience.

In different treatment processes, in order to meet different orthodontic needs, the fixed ear 2 may have various deformations, such as changes in the extension direction, changes in the opening form, etc. Including the material, the fixed ear 2 can also be correspondingly Adjustment. Referring to an embodiment, the fixing ear 2 is an elastic ring. The fixed ear 2 can be made of nickel-titanium material to realize the function of the elastic ring. The elastic ring can use its own elasticity to achieve more orthodontic effects. For example, it can generate positive pressure on the dental arch wire 4 of appropriate thickness, which is convenient for the torque of the dental arch wire 4 For example, the active self-locking of the dental arch wire 4 can be realized, so as to realize the function of the traditional self-locking bracket and so on.

In the form of the fixing ears 2, referring to an embodiment, each elastic ring includes a fixed side 23 connected to the net bottom 1 and an extension side 24 extending away from the net bottom 1; the two elastic rings extend from the fixed side 23 to the extension side 24 gradually move away or extend equidistantly or approach each other.

The fixed side 23 is used to transmit the moment between the fixed ear 2 and the net bottom 1, and the extended side 24 can facilitate the realization of components and installation and cooperation. Referring to the technical solutions in the drawings, the elastic force of the elastic ring is achieved by the deformation of the extension side 24 relative to the fixed side 23 . In different treatment processes, the arrangement shape between the two fixing ears 2 can be changed in various ways. For example, the two elastic rings shown in the drawings are gradually separated from the fixed side 23 to the extension side 24. The two elastic rings are shown extending equidistantly or close to each other from the fixed side 23 to the extension side 24 .

The core purpose of different arrangement between the two fixed ears 2 is to better transmit the stress of the dental arch wire 4 to the mesh bottom 1 , and the part of the fixed ear 2 in direct contact with the dental arch wire 4 is the arch wire hole 21 . Regarding the setting of the archwire hole 21, referring to an embodiment, the archwire hole 21 includes:

The guide part 211 is located on the side of the arch wire hole 21 away from the mesh bottom 1 and allows the relative movement of the dental arch wire 4;

The engaging portion 212 is located on the side of the arch wire hole 21 close to the mesh bottom 1 and is engaged with the dental arch wire 4 .

The function of the guiding portion 211 is to facilitate the threading of the dental arch wire 4 and facilitate the work of clinicians and other operators. The function of the engaging portion 212 is to bear the moments of the dental arch wire 4 in multiple directions to realize orthodontics the process of. In order to achieve the above functions, the shapes of the two also need to be adjusted accordingly. Further, referring to an embodiment, the width of the bottom side of the guide portion 211 gradually converges until it is connected with the engaging portion 212 , and the engaging portion 212 extends with the same width and the width is adapted to the size of the dental arch wire 4 .

The inner shape and size of the guide portion 211 are larger than the outer shape and size of the dental arch wire 4, thereby allowing the passage of the dental arch wire 4; the width dimension of the engaging portion 212 is adapted to the size of the dental arch wire 4 to withstand the direction stress. The guide portion 211 and the engaging portion 212 communicate with each other and transition smoothly, thereby allowing the dental arch wire 4 to move between them to meet the needs of use in different states. In the solution shown in the figure, the width dimension of the engaging portion 212 refers to the position shown in D1 in the figure, and the overall cross-sectional shape of the engaging portion 212 also presents a roughly rectangular shape, so as to be compatible with the appropriate size of the dental arch wire 4 co-operate.

In addition to the restriction on the dental archwire 4 by the shape of the archwire hole 21 itself, the relationship between the archwire holes 21 on the two fixing ears 2 will also generate stress on the dental archwire 4 . Referring to an embodiment, the axial directions of the two archwire holes 21 are arranged at an included angle.

When the axial directions of the two arch wire holes 21 are arranged at an included angle, the arch wire holes 21 can generate prestress on the dental arch wire 4 , so as to better transmit the stress of the dental arch wire 4 to the mesh bottom 1 . With reference to the drawings, the included angle between the axial directions of the two archwire holes 21 is represented as an angle A. This angle can be achieved by the inclined arrangement of the archwire hole 21 on the surface of the fixing ear 2, or by the inclination of the fixing ear 2 itself. Specifically referring to an embodiment, the top side of the mesh bottom 1 is raised in the middle and smoothly transitions from the middle to both sides to form two transition surfaces 11, and the two fixing ears 2 are respectively arranged on the two transition surfaces 11; the axial direction of each archwire hole 21 is It is roughly parallel to the transition surface 11 where it is located. The advantage of this embodiment is that the archwire hole 21 is perpendicular to the surface of the fixing ear 2, which is easy to process, and the two fixing ears 2 are at a certain angle to each other, so that the use requirements of other components can be met.

Referring to FIG. 2 , the present application also discloses an orthodontic device, comprising a self-locking orthodontic bracket according to the above technical solution and a ligation wire 3 arranged on the self-locking orthodontic bracket;

The top side or the middle of the fixed ear 2 is provided with a widened part protruding relative to the bottom side, the ligation wire 3 hugs at least one fixed ear 2, and the ligation wire 3 drives the dental arch wire 4 and the mesh bottom 1 under the widened part. Top side rest.

The widened part can be an independent part, or can be formed by extending the material of the fixing ear 2 itself, or it can be widened in size of the fixing ear 2 itself as shown in the drawings. The widened part can realize the driving of the ligation wire 3, ensure its pressure on the dental arch wire 4, and realize the function of passive ligation.

The ligation wire 3 can be driven not only by the widened part, but also by the arrangement of the two fixing ears 2 . Referring to an embodiment, the ligating wire 3 hugs the two fixing ears 2 , and the two fixing ears 2 away from the net bottom 1 are separated from each other so that the ligating wire 3 moves toward the net bottom 1 .

The sides of the two fixing ears 2 away from the net bottom 1 are actually left and right of the widened part, thereby driving the ligating wire 3 to move toward the net bottom 1 . Referring to the embodiment in the drawings, the ligating wire 3 actually receives two forces, one is the driving force generated by the distance between the two fixing ears 2, and the other is the increase in the size of the fixing ears 2 itself. The driving force of the wide part.

In this embodiment, the sides of the two fixing ears 2 that are far away from the mesh bottom 1 may cause inconvenience when the dental arch wire 4 is installed, so an annular bridge (not shown) can also be provided to assist the dental arch wire 4 Install. The annular bridge is installed from the gingival jaw of the fixed ear 2 to the side, and can support the fixed ear 2 before the dental arch wire 4 enters the arch wire hole 21 , so as to facilitate the installation of the dental arch wire 4 . Before the dental arch wire 4 penetrates into the fixed ear 2, the fixed ear 2 is placed on the annular bridge. After the dental arch wire 4 penetrates into the fixed ear 2, use a special tool to insert the fixed ear 2 and rotate to open the fixed ear 2 It is separated from the annular bridge and directly pressed on the arch wire 4, and the arch wire 4 is continuously and gradually pressed into the engaging portion 212 by the elastic force of the fixing ear 2 itself. In a specific product, the fixed ear 2 can also be provided with an inclined guide slope that facilitates the insertion of the dental arch wire 4 into the groove.

In practical use, combined with specific clinical data, this application exemplarily gives a reference size, when the diameter of the dental arch wire 4 is ≤ 0.016", the fixed ear 2 will not form pressure on the dental arch wire 4, and when the dental arch wire 4 has a diameter less than or equal to 0.016" When the size of the wire 4 is greater than 0.020", the fixed ear 2 exerts pressure on the dental arch wire 4 .

3a to 3b, the present application also discloses an orthodontic device system, including the self-locking orthodontic bracket in the above technical solution, a ligation wire 3 arranged on the self-locking orthodontic bracket, and a self-locking orthodontic bracket. The dental arch wire 4 on the bracket; the dental arch wire 4 applies the orthodontic force through the self-locking orthodontic bracket.

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification. When the technical features of different embodiments are embodied in the same drawing, it can be considered that the drawing also discloses the combination examples of the various embodiments involved.

The above-mentioned embodiments only represent several embodiments of the present application, and the descriptions thereof are relatively specific and detailed, but should not be construed as a limitation on the scope of the patent application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, several modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims (10)

1. Self-locking orthodontic brackets, comprising a net bottom, characterized in that the top side of the net bottom is provided with two fixing ears, and between each fixing ear and the net bottom an integral structure or a split fixing structure; Each fixing ear is respectively provided with an arch wire hole that allows the dental arch wire to pass through, the arch wire hole is a fully closed structure in the circumferential direction or has an open area in part, and the arch wire holes on the two fixing ears are arranged opposite to form an arch wire passage channel . 2 . The self-locking orthodontic bracket according to claim 1 , wherein the fixing ears are elastic rings. 3 . 3 . The self-locking orthodontic bracket according to claim 2 , wherein each elastic ring includes a fixed side connected to the mesh bottom and an extension side extended away from the mesh bottom; the two elastic rings are fixed from the fixed side. The side to the extended side gradually moves away or extends equidistantly or approaches each other. 4. The self-locking orthodontic bracket according to claim 1, wherein the archwire hole comprises: a guide part, located on the side of the arch wire hole away from the mesh bottom and allowing the dental arch wire to move relatively; The engaging part is located on the side of the arch wire hole close to the mesh bottom and is engaged with the dental arch wire. 5 . The self-locking orthodontic bracket according to claim 4 , wherein the width of the bottom side of the guide portion gradually converges until it is abutted with the engaging portion, and the engaging portion extends the same width and has a width equal to that of the engaging portion. 6 . The size of the dental arch wire is adapted. 6 . The self-locking orthodontic bracket according to claim 1 , wherein the axial directions of the two archwire holes are arranged at an angle. 7 . 7 . The self-locking orthodontic bracket according to claim 1 , wherein the middle part of the top side of the mesh bottom is raised and smoothly transitions from the middle part to both sides to form two transition surfaces, and the two fixing ears are respectively arranged on the Two transition surfaces; the axial direction of each archwire hole is substantially parallel to the transition surface where it is located. 8. An orthodontic device, characterized in that it comprises the self-locking orthodontic bracket according to any one of claims 1 to 7 and a ligating wire arranged on the self-locking orthodontic bracket; The top side or the middle part of the fixed ear is provided with a widened part protruding relative to the bottom side, the ligation wire hugs at least one fixed ear, and the ligation wire drives the dental arch wire and the mesh under the push of the widened part. The top side of the bottom rests. 9 . The orthodontic device according to claim 8 , wherein the ligation wire hugs the two fixing ears, and the two fixing ears are away from each other at one side away from the mesh bottom to tend the ligating wire. 10 . Move towards the bottom of the net. 10. An orthodontic device system, characterized in that it comprises the self-locking orthodontic bracket according to any one of claims 1 to 7, a ligature wire arranged on the self-locking orthodontic bracket, and a ligature wire threaded through the self-locking orthodontic bracket. The dental arch wire on the self-locking orthodontic bracket; the dental arch wire exerts a correction force through the self-locking orthodontic bracket.

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