KR102101870B1 - apparatus for orthodontics treatment - Google Patents

Abstract

In order to pull the tooth to be corrected on the anterior side to the posterior side of the oral cavity, the present invention is fixed to the surface of the tooth to be corrected, and a base portion through which a first coupling hole to which a wire providing tension is coupled is transversely formed. An orthodontic bracket including a protruding engaging portion extending protruding to the rear side of the base portion and having a second coupling hole penetrating in the transverse direction; It is connected to the traction fixing means fixed to the inside of the oral cavity and is a traction height formed at the end of the mating coupling part which is connected to the protruding coupling part and is detachably coupled to the traction force in the first towing direction in which the orthodontic tooth moves backward. government; And it provides an orthodontic appliance comprising an elastic band that is interpolated and coupled to the recess formed in the base portion and the side portion of the traction fixing portion so that the orthodontic bracket and the traction fixing portion are mutually fixed.

Description

Orthodontic appliance {apparatus for orthodontics treatment}

The present invention relates to an orthodontic appliance, and more particularly, to an orthodontic appliance for towing the tooth to be corrected on the anterior side to the posterior side of the oral cavity.

In general, occlusion refers to a state in which the teeth of the maxilla and mandible are engaged with each other when the mouth is closed. In addition, the malocclusion refers to an incorrect occlusal relationship in which the arrangement of the teeth is not aligned due to any cause or the upper and lower jaw engagement is out of the normal position, which is a functional and aesthetic problem.

Here, the cause of the malocclusion is known to have a large genetic effect, but may be caused by various causes, such as problems in the shape or size of teeth, environmental effects, bad habits, wrong posture, and congenital disorders such as dental caries.

On the other hand, when malocclusion occurs, the teeth are not uniform and food residues are likely to remain between the teeth. In addition, since it is not easy to clean with an accurate brushing, plaque in the oral cavity increases, so it is easy to progress to gum disease such as dental caries or gum inflammation. Moreover, if there is a tooth that deviates from the normal dentition or the position of the jaw is abnormal, there is a high possibility of damage to the tooth, such as fracture of the tooth, when an external impact is applied.

Thus, orthodontic treatment is performed to treat the malocclusion. Here, the orthodontic treatment uses the property that the tooth moves when it receives an external force.

In detail, orthodontic treatment uses various devices and methods depending on the cause or timing of treatment. For example, it may be classified as a device that inhibits or promotes the growth of the upper and lower jaw bones or a device that gradually moves a tooth to a desired position. In addition, it can be divided into a removable device that can be installed and detached in the oral cavity and a fixed device that is detached at the end of treatment after being attached to a tooth.

On the other hand, the most widely used is a fixed treatment method in which a device called a bracket is attached to a tooth and the tooth is moved using the tension of a wire such as an orthodontic wire or a rubber band, and can be commonly used for various types of orthodontic treatment.

In detail, the brackets are firmly attached to the surfaces of the teeth to be corrected, and the wires are fixed to interconnect the brackets. In addition, the teeth to be corrected can be gradually moved by variously adjusting the direction and size of the force applied to the wire by adjusting the tension applied to the wire. Therefore, the orthodontic treatment is performed as the position and posture of the teeth to be corrected are changed by the tension of the wire and the teeth move little by little.

However, as conventional orthodontic treatment is performed by the experience of a practitioner such as a dentist, the practitioner himself / herself fine-tunes the dentition by repeating the process of directly pulling or releasing the wires bound to the patient's teeth without accurate assurance. . Since this is adjusted to a desirable dental structure through repeated trial and error, there is a problem in that the treatment time is increased and the discomfort and pain of the patient are increased.

In addition, conventional orthodontic treatment is not objective because it is highly dependent on the operator's capabilities, and the subject is difficult to implement a universally desirable orthodontic state because the operator must rely entirely on the operator's experience and ability.

Moreover, the experience and knowledge of the practitioner is qualitative data that is difficult to record as specific data, and differs according to the ability and experience of each practitioner. Due to this, the orthodontic model itself, which is the final purpose of orthodontics, was formed by the subjective viewpoint or experience of the practitioner performing the procedure, and thus the orthodontic results were not universal and objective.

On the other hand, during orthodontic treatment, the correction of moving the teeth of the anteriorly projected anterior teeth to the lingual side, for example the palatal side, is called lingual traction. This lingual traction is to form a space by extracting the premolar on both sides, and correcting it to a desirable dentition state while moving the anterior teeth protruding toward the space back.

At this time, in the conventional lingual traction, the traction force to the palate side is directly transmitted to the wire providing tension to the bracket attached to each tooth. Due to this, there is a problem in that the orthodontic correction cannot be preferably performed, such as the wire is disconnected or the initially set tension position is changed, resulting in distortion or inclination of the tooth to be corrected.

In addition, in order to prevent the separation of the wire by the traction force, as the wire and the bracket are substantially fixed using a high-strength adhesive or the like, there is a problem in that it is difficult to correct the position of the wire or replace the disconnected wire. In addition, it was difficult to remove the high-strength adhesive and wire from the bracket, and there was a hassle that a new bracket had to be reattached to the teeth.

Moreover, in order to prevent deformation and disconnection of the wire, when the force to be pulled to the rear is weakly adjusted, there is a problem in that patient discomfort is increased due to a significant increase in the period during which the anterior teeth are towed to the space. Moreover, there is a problem in that inclination of the dentition or imbalance of the vertical position occurs due to the limited transfer of the traction force to which the anterior teeth are retracted to the position where the wires are coupled.

On the other hand, conventionally, a traction device has been manufactured to be coupled to the bracket to pull the bracket toward the rear side of the oral cavity. The traction device is manufactured such that one surface is opened to surround the bracket, and an inner surface is recessed to insert the bracket.

However, the conventional traction device has a problem in that the process of manufacturing a recessed space for coupling and towing to the bracket is complicated and cumbersome, thereby deteriorating productivity and economic efficiency.

Korean Registered Patent No. 10-0991447

In order to solve the above problems, the present invention solves the problem of providing an orthodontic appliance for towing the tooth to be corrected on the anterior side to the posterior side of the oral cavity.

In order to solve the above problems, the present invention is fixed to the surface of the tooth to be corrected, but the first coupling hole to which the wire providing tension is formed is transversely formed, and the base portion is protruded to the rear side of the base portion. Orthodontic bracket including a protruding coupling portion is formed through the second coupling hole in the transverse direction; It is connected to the traction fixing means fixed to the inside of the oral cavity and is a traction height formed at the end of the mating coupling part which is connected to the protruding coupling part and is detachably coupled to the traction force in the first towing direction in which the orthodontic tooth moves backward. government; And it provides an orthodontic appliance comprising an elastic band that is interpolated and coupled to the recess formed in the base portion and the side portion of the traction fixing portion so that the orthodontic bracket and the traction fixing portion are mutually fixed.

Here, the molded coupling portion is formed with a round protrusion protruding in a hemispherical shape so as to be selectively fitted to the rim of both ends of the second coupling hole, and the recessed groove is a continuous closed curved line profile in the side portion of the base portion and the tow fixing part. It is preferable to include a first recessed groove and a second recessed groove that are respectively recessed.

At this time, the protruding coupling portion is narrowed and extended protruding toward the end in the rear central portion of the base portion so as to form a matching region to be formed with the protruding coupling portion, and the protruding coupling portion is formed at the end facing the base portion, but the protruding portion It is preferable that an inclined surface is formed so as to be combined with the engaging portion.

In addition, the first and second wire receiving portions corresponding to the wire diameter, but narrower than the diameters of the first coupling hole and the second coupling hole, are formed in the base portion and the protruding coupling portion, respectively, to form the communication. It is preferable that the 1-wire accommodating portion communicates with the front portion of the base portion from the first coupling hole, and the second wire-receiving portion communicates with the outer side of the base portion from the second coupling hole.

In addition, the towing fixing portion is provided with a towing tail portion extending to the rear side to transmit the traction force to correspond to the first towing direction, and the orthodontic bracket and the towing fixing portion are provided in plural to correspond to a plurality of teeth to be corrected. However, it is preferably provided with a towing assembly further provided with a towing joint part that integrally connects the plurality of towing fasteners, and the coupling direction of the orthodontic bracket and the towing fastener is preferably formed to correspond to the first towing direction at the same time. Do.

At this time, both sides of the traction assembly is provided with a traction guide bar extending rearwardly corresponding to the first traction direction, and the traction fixing means is selectively connected to the traction guide bar, the traction force corresponding to the first traction direction. In order to provide a fixed to the fixed area formed to the rear of the plurality of teeth to be corrected, the traction fixing means a pair of fixed brackets fixed to both sides of the fixed area, and a tow connecting bar connecting the pair of fixed brackets, A guide portion provided on both sides of the traction connecting bar and formed with a through hole so that the traction guide bar slides in response to the first towing direction, and a tension connecting portion for elastically stretching the traction guide bar and the traction connecting bar It is preferred to include.

Through the above solution, the orthodontic appliance according to the present invention provides the following effects.

First, the orthogonal bracket and the traction joint and the fusion joint formed in the fusion zone where the traction fixing unit is mutually cooperated are designed and manufactured quickly and easily through three-dimensional printing, making it a complex traction device for fixing and towing the conventional bracket. The hassle of manufacturing was eliminated, and manufacturing convenience can be significantly improved.

Second, the elastic bracket is selectively attached to each recessed groove formed of a continuous closed curved line profile so as to wrap the outer side of the orthodontic bracket and the traction fixation, so it is easy to attach and detach, and the orthodontic appliance is fixed to improve installation convenience. have.

Third, the round protrusion formed in the traction fixation is fitted to the edge of the second coupling hole of the orthodontic bracket, and the orthodontic device is towed to the posterior side of the oral cavity with uniform traction, so stable traction is transmitted to the entire teeth to correct the orthodontic treatment. Convenience can be improved.

Fourth, the wire providing tension for adjusting the position and angle of the tooth to be corrected is easily detachable to each of the wire receiving portions formed to be narrower than the diameter of each coupling hole, so that it is disconnected due to excessive traction or initially planned orthodontic correction. Since problems such as position change are solved, the convenience of calibration can be improved.

Fifth, by simply removing the traction fixing unit from the orthodontic bracket where each coupling hole is integrally formed, it is possible to easily fasten / separate and correct the position of the wire for individual calibration of each tooth, thus separating the rear towing means from the oral cavity. After that, the hassle of replacing and installing with a bracket capable of wire fastening is eliminated, and the convenience of calibration can be improved.

1 is a perspective view showing an orthodontic appliance according to an embodiment of the present invention.
Figure 2a and Figure 2b is an exploded perspective view showing an orthodontic appliance according to an embodiment of the present invention.
3 is an exemplary view showing a state in which an orthodontic appliance according to an embodiment of the present invention is installed in a tooth to be corrected.
Figure 4 is an exemplary view showing an orthodontic appliance according to another embodiment of the present invention.
5A and 5B and 5C are exemplary views showing an orthodontic correction process by an orthodontic appliance according to another embodiment of the present invention.

Hereinafter, an orthodontic appliance according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing an orthodontic appliance according to an embodiment of the present invention, Figures 2a and 2b is an exploded perspective view showing an orthodontic appliance according to an embodiment of the present invention, Figure 3 is an embodiment of the present invention It is an exemplary view showing a state in which an orthodontic appliance according to an example is installed on a tooth to be corrected.

1 to 3, the orthodontic appliance 300 according to the present invention is provided to include a bracket for correction 310 and a traction fixing unit 320.

Meanwhile, The orthodontic appliance according to the present invention can be used for orthodontic treatment of malocclusions projecting forward, especially among the malocclusions occurring on the teeth of the anterior teeth, and is provided so that the teeth to be calibrated can be moved to the back of the mouth, that is, to the lingual side. do. At this time, the orthodontic treatment using the orthodontic appliance extracts the premolar on both sides of the target tooth portion (T in FIG. 5A) including the teeth to be corrected to form a tooth extraction space (5 in FIG. 5A). Then, the orthodontic appliance 300 (400 in FIG. 5A) is installed to move the target tooth portion (T in FIG. 5A) so that the extraction space (5 in FIG. 5A) is closed, and the teeth to be corrected (FIG. 5A). The t1) or the rear movement of the target tooth (T in FIG. 5A) can be towed.

Here, the target tooth portion (T in FIG. 5A) is preferably understood as an orthodontic orthodontic region including at least one orthodontic target tooth t1 that substantially requires orthodontic treatment. That is, the target tooth portion (T in FIG. 5A) may include all or part of the six teeth at the anterior side where the malocclusion dentition mainly occurs in the oral cavity. In addition, the fixed teeth (2 in FIG. 5A) to be described later are preferably understood as teeth of 2-3 teeth of the molar side, and the traction fixing means (440 in FIG. 5A) to be described later can be fixed.

On the other hand, the orthodontic bracket 310 is attached to the surface of the tooth to be corrected (t1), and a wire that provides tension for adjusting the position and angle of the tooth (1) to be corrected is combined. In detail, the orthodontic bracket 310 is fixed to the surface of the tooth to be corrected (t1), but the first coupling hole 312 through which a wire providing tension is coupled is formed through a base portion 311 formed in a transverse direction. Includes. At this time, the inner surface of the base portion 311 may be formed of a mating surface 311b that conforms to the surface profile of the tooth t1 to be corrected, and may be individually designed according to a different surface profile for each tooth.

Therefore, since the clamping surface 311b is molded to a specific surface profile of the tooth to be corrected and aligned and fixed at a desired position, the tension of the wire is accurately transmitted, so that the reliability of the orthodontic treatment can be significantly improved.

The mating surface 311b has an adhesive force such that it is not separated from the tooth surface by the traction force applied to the orthodontic device 300 and the tension of the wire while attached to the surface of the tooth t1 to be corrected. Dental adhesive may be applied. Therefore, the separation of the orthodontic bracket 310 from the orthodontic target tooth t1 is prevented, so that stable orthodontic treatment can be performed.

Here, the base portion 311 may be designed to correspond to the lingual side profile of the tooth t1 to be corrected so that the mating surface 311b is attached to the lingual side of the tooth t1 to be corrected. In addition, the base portion 311 is preferably provided with a cross-sectional area that can cover the lingual surface of the tooth to be corrected (t1) with a certain area.

Accordingly, as the traction force of the orthodontic appliance and the tension of the wire are transmitted to the orthodontic tooth t1 as a whole through the orthodontic bracket 310, inclination of the orthodontic tooth t1 and The same problem can be avoided.

In addition, it is preferable that the first coupling hole 312 through which the wire providing tension is coupled is formed in the base portion 311 in the transverse direction. Here, the first coupling hole 312 may be formed to pass through at a predetermined position of the base portion 311 in the transverse direction. At this time, a protruding coupling portion 317, which will be described later, is formed on the rear side of the base portion 311, and it is preferable that the predetermined position means the front side of the base portion 311. Here, the first coupling hole 312 may be provided with an inner circumference formed through the wire so that the wire is interpolated and fixed.

In addition, in the design process of the orthodontic bracket 310, the opening position and the opening direction of the first coupling hole 312 are accurately adjusted so that the tension of the wire is accurately transmitted according to the degree of malocclusion of the orthodontic target t1. Can be designed individually.

In addition, it is preferable that the first wire receiving portion 313 corresponding to the wire diameter but narrower than the diameter of the first coupling hole 312 is formed in the base portion 311 in communication with the first coupling hole 312. Do. Here, the first wire receiving portion 313 is preferably communicated with the front of the base portion 311 from the first coupling hole 312. Of course, in some cases, the first wire receiving portion 313 may be communicated from the first coupling hole 312 toward the outside of the base portion 311.

Accordingly, the wire for orthodontics is easily inserted into the first wire accommodating portion 313 formed to correspond to the wire diameter, and is locked and fixed to the first coupling hole 312, so that the first wire is accommodated. Since the diameter of the portion 310 is narrower than the diameter of the first coupling hole 312, it is difficult to deviate, so the convenience of use can be significantly increased.

Meanwhile, it is preferable that the first recessed groove 314 is recessed along the side surface of the base part 311. In detail, it is preferable that the first recessed groove 314 is recessed in a continuous profile along the side and front portions of the base portion 311 except for the rear portion on which the protrusion engaging portion 317 is formed. Of course, in some cases, the first recessed groove 314 may be formed as a discontinuous recessed surface. Accordingly, an elastic band 330 may be interpolated and coupled to the profile so that the orthodontic bracket 310 and the traction fixing unit 320 are fixed to each other in the first recessed groove 314.

Here, the first recessed groove 314 may be formed to overlap the position where the first coupling hole 312 is formed. That is, both ends of the first coupling hole 312 may be formed in communication with either side of the first recessed groove 314 formed in a profile shape. Here, since the first recessed groove 314 is formed for the purpose in which the elastic band 330 is interpolated, the depth of depression of the profile of the recessed surface of the first recessed groove 314 is formed differently for each position of the continuous profile. As much as possible It is desirable to understand.

At this time, when the elastic band 330 is locked and fixed to the first recessed groove 314, the first coupling hole 312 may be concealed from the outside by the elastic band 330. Through this, since the portions exposed at both ends of the first coupling hole 312 are exposed to the outside by the elastic band 330, the inflow of foreign substances or the like into the interior of the first coupling hole 312 is prevented. Therefore, hygiene can be increased.

On the other hand, the outer surface 315 side edge of the base portion 311 may be formed to be rounded to prevent or alleviate the occurrence of pain and foreign body sensation by being contacted or pressed against the palatal tissue. The base portion 311 is provided to have a smaller cross-sectional area than the tooth to be corrected (t1) so that the foreign body feeling is minimized in the protruding state in the oral cavity, and the overall volume of the state in which the traction fixing unit 320 is coupled is minimized. You can.

In addition, the orthodontic bracket 310 is narrowed to be inclined at a predetermined angle toward the rear end of the base portion 311 and protrudes, but the protruding coupling portion through which the second coupling hole 318 is formed transversely. 317.

In detail, the protruding coupling portion 317 is gradually moved toward the rear end portion of the rear central portion of the base portion 311 so that a matching region formed with the matching coupling portion 321 formed in the traction fixing portion 320 to be described later is formed. It is preferable that both sides are narrowed and prolonged.

Here, it is preferable to understand that the protrusion engaging portion 317 is formed to connect and fix the fixing bracket 310 and the traction fixing unit 320. Accordingly, the shape of the protruding coupling portion 317 and the coupling coupling portion 321 may be changed within mutually mating conditions. For example, the protruding coupling portion may be formed by protruding stepwise from the rear central portion of the base portion 311. At this time, the molded coupling portion may be formed corresponding to the shape of the slit coupling portion so as to be mutually molded with the slit coupling portion.

Further, it is preferable that the second coupling hole 318 is formed in the transverse direction in the protruding coupling part 317. Here, the second coupling hole 318 may be provided with an inner circumference formed through the wire so that the wire is interpolated and fixed.

In addition, round protrusions 322 formed on the molded coupling portions 321 may be inserted and fixed at both ends of the second coupling hole 318, respectively. That is, when the fixing bracket 310 and the traction fixing unit 320 are mutually coupled and fixed, the second coupling hole 318 may be used for the purpose of inserting and fixing the round protrusion 322. Moreover, when the fixing bracket 310 is used alone, the second coupling hole 318 may be used for the purpose of inserting and fixing the wire. Here, the protruding coupling portion 317 adjacent to the edge of both ends of the second coupling hole 318 may be recessed toward the second coupling hole 318 so that the round protrusion 322 is smoothly inserted. .

In addition, in the design process of the orthodontic bracket 310, the opening position and the opening direction of the second coupling hole 318 are adjusted so that the tension of the wire is accurately transmitted according to the degree of malocclusion of the orthodontic tooth t1. It can also be designed individually.

In addition, it is preferable that the second wire receiving portion 319 corresponding to the wire diameter but narrower than the diameter of the second coupling hole 318 is formed in the protruding coupling portion 317. Here, the second wire receiving portion 319 is preferably communicated from the second coupling hole 318 in the outward direction of the base portion 311. Of course, in some cases, the second wire accommodating portion 319 may communicate with the rear of the base portion 311 from the second coupling hole 318.

Accordingly, the wire for orthodontics is easily inserted into the second wire accommodating portion 319 formed to correspond to the wire diameter, and locked and fixed to the second coupling hole 318, so that the second wire is accommodated. Since the diameter of the portion 319 is narrower than the diameter of the second coupling hole 318, it is difficult to deviate, so the convenience of use can be significantly increased. Therefore, the wire providing tension for adjusting the position and angle of the tooth to be corrected t1 is easily detachable to each wire receiving portion 313,319 formed to be narrower than the diameter of each coupling hole 312,318, and thus excessive Correction convenience can be improved because problems such as disconnection by traction or initially planned orthodontic position change are eliminated.

On the other hand, the traction fixation 320 is connected to the traction fixing means (440 in FIG. 5A) fixed inside the oral cavity, the traction force with respect to the first towing direction (f1) in which the orthodontic target tooth (t1) moves backward. It is preferably provided to be delivered.

It is preferable that the traction fixation 320 is selectively locked and fixed to the fixing bracket 310 so that the traction force is transmitted to the first towing direction f1 in which the orthodontic target tooth t1 is towed backwards in the oral cavity. Do. Here, the traction fixing unit 320 is connected to the traction fixing means (440 in FIG. 5A) fixed to the inside of the oral cavity, the traction force in the first towing direction f1 may be transmitted.

In detail, it is preferable that the traction fixing portion 320 is formed at the end portion of the fusion coupling portion 321 which is molded to the protruding coupling portion 317 and selectively detachably connected. Here, the mating coupling portion 321 may be protruded and extended to each of the inclined surfaces 321a so that the mating regions are extended as both sides of the end side facing the base portion 311 go outward.

Accordingly, the molded coupling portion 321 may be molded and combined with the slit coupling portion 317 that is narrower and extends and protrudes toward the end of the rear central portion of the base portion 311.

Further, it is preferable that the round projection 322 is selectively fitted to the rim of both ends of the second coupling hole 318 in the traction fixing unit 320. Here, it is preferable that the round protrusions 322 are protruded in a hemispherical shape at positions opposite to the rims of both ends of the second coupling hole 318 among the inclined surfaces 321a. At this time, the round protrusion 322 may be protruded in a hemispherical shape on each inclined surface 321a of the mating coupling portion 321.

Accordingly, as the round protrusion 322 is fixed to the edge of both ends of the second coupling hole 318, the traction fixing unit 320 may be firmly coupled to the orthodontic bracket 310. Therefore, in the state in which the traction fixation 320 is coupled to the orthodontic bracket 310, the traction force transmitted corresponding to the first towing direction f1 is transmitted to the orthodontic target tooth t1. Traction movement to the rear can be performed stably. That is, the round protrusion 322 is fitted to the edge of the second coupling hole 318 so that the orthodontic device is towed to the posterior side of the oral cavity with a uniform traction force, and thus a stable traction force is transmitted to the entire tooth, thereby improving the convenience of orthodontic treatment. Can be improved.

In addition, the fixing bracket 310 and the traction fixing unit 320 may be integrally manufactured using a three-dimensional print. At this time, the protruding coupling portion 317 and the mating coupling portion 321 can be easily manufactured by the three-dimensional printing.

Accordingly, the protruding coupling portion 317 and the mating coupling portion 321, which are respectively formed in the mating region where the orthodontic bracket 310 and the traction fixing portion 320 are mutually mated, are rapidly generated through three-dimensional printing. And it is easily designed and manufactured, the hassle of manufacturing a complicated traction device for fixing and towing a conventional bracket is eliminated, and manufacturing convenience can be improved.

On the other hand, the base portion 311 and the tow fixing portion 320, it is preferable that the recessed grooves 314 and 323 are respectively recessed in a continuous closed curved line profile along the side portion. In this case, the recessed grooves 314 and 323 include the first recessed groove 314 and the second recessed groove 323. Here, the second recessed groove 323 is preferably recessed in a continuous profile along the side and rear portions of the base portion 311 except for the front side on which the mating coupling portion 321 is formed. Of course, in some cases, the second recessed groove 323 may be formed as a discontinuous recessed surface.

In addition, the orthodontic appliance 300 preferably further includes the elastic band 330 that is interpolated and coupled to the closed curve line profile so that the orthodontic bracket 310 and the traction fixing unit 320 are fixed to each other. Do.

Here, the elastic band 330 is rubber so as to have a greater elastic restoring force than the traction force applied to the orthodontic appliance 300 to prevent separation when the orthodontic bracket 310 and the traction fixation 320 are engaged. It may be provided as a material.

Accordingly, the elastic band so that the orthodontic bracket 310 and the tow fixing part 320 are fixed to the first recessed groove 314 and the second recessed groove 323 formed of a continuous closed curved line profile. 330 may be interpolated and coupled. Therefore, in the state in which the traction fixation 320 is coupled to the orthodontic bracket 310, the traction force transmitted corresponding to the first towing direction f1 is transmitted to the orthodontic target tooth t1. Traction movement to the rear can be performed stably.

Therefore, the elastic band 330 is interpolated and coupled to each recessed groove 314 and 323 formed of a continuous closed line profile to surround the orthodontic bracket 310 and the traction fixing 320 outside. Since the orthodontic appliance 300 is towed to the posterior side of the oral cavity, stable traction is transmitted to the entire teeth, thereby improving the reliability of the orthodontic treatment and improving installation convenience.

Meanwhile, the outer surfaces 315 and 324 of the base portion 311 and the traction fixing unit 320 may be formed in a substantially continuous profile when mutually coupled. Accordingly, in the state in which the traction fixation 320 is coupled to the orthodontic bracket 310 attached to the tooth t1 to be corrected, the front end of the rounded outer surface 315,324 of the traction fixation 320 The end portion of the portion and the tooth t1 to be corrected may be arranged in a substantially continuous profile without being stepped. In addition, the base portion 311 and the rims of the outer surfaces 315 and 324 of the traction fixing unit 320 may be formed to be rounded to prevent or alleviate the occurrence of pain and foreign body sensation by contacting or pressing the palatal tissue.

In addition, the inner surface of the traction fixation 320 may be formed of a mating surface 320b that conforms to the surface profile of the tooth to be corrected t1, and may be individually designed according to a different surface profile for each tooth. Therefore, since the clamping surface 320b is molded to a specific surface profile of the tooth to be corrected and aligned and fixed in a desired position, the tension of the wire is accurately transmitted, so that the reliability of the orthodontic treatment can be significantly improved.

Here, the traction fixing 320 may be designed to correspond to the lingual side profile of the tooth to be corrected (t1) so that the mating surface (320b) is attached to the lingual side of the tooth to be corrected (t1). In addition, the traction fixation 320 may be provided with a cross-sectional area that can cover the lingual side of the tooth (t1) to be corrected with a certain area.

Therefore, as the traction force of the orthodontic appliance and the tension of the wire are transmitted to the orthodontic target tooth t1 through the orthodontic bracket 310 and the traction fixing unit 320, the orthodontic target during the orthodontic correction process. Problems such as tilting of the teeth t1 can be prevented.

In addition, in some cases, the rear surface of the traction fixing unit 320 may be extended obliquely toward the rear from the inner surface side to the outer surface side. Accordingly, since the inclined rear surface of the traction fixation 320 substantially corresponds to the profile of the gum portion where the tooth to be corrected t1 extends toward the palate 3 side, the orthodontic appliance 300 is compact in the oral cavity. Can be installed.

Through this, when the orthodontic appliance 300 is installed, interference with tissues in the oral cavity during mastication or occlusal and foreign body sensation caused by it are minimized, so that discomfort of the subject to be corrected during orthodontic treatment can be minimized.

On the other hand, the coupling direction of the orthodontic bracket 310 and the traction fixing 320 (f3 in FIG. 4) is preferably formed to correspond to the first towing direction (f1). In detail, the base portion 311 corresponds to the lingual surface profile of the tooth to be corrected (t1) so that an attachment area that can be attached by a dental adhesive to the tooth to be corrected (t1) is secured ( 311b) may be formed. Accordingly, the cross-sectional area of the base portion 311 attached to the neighboring orthodontic target tooth t1, the attachment direction, and the shape of the mating surface 311b may be designed differently.

At this time, the traction fixing 320 may be selectively coupled and fixed to the orthodontic bracket 310. Here, the traction fixing portion 320 may be formed in accordance with the lingual profile of the tooth to be corrected (t1).

Therefore, even when the orthodontic bracket 310 is individually attached to the teeth to be corrected adjacent to each other, the coupling direction of the traction fixing unit 320 (f3 in FIG. 4) can be set substantially parallel to each other. have. Through this, even if each alignment position and angle of the teeth to be corrected (t1) is different, it can be stably towed in the same direction toward the rear side of the oral cavity, and prevents inclination or distortion of each tooth in the traction process, thereby correcting orthodontics The reliability of can be significantly improved.

In addition, by simply removing the traction fixing unit 320 to the orthodontic bracket 310, the wires for individual calibration of each tooth can be easily fastened / separated and corrected. Accordingly, the inconvenience of replacing and installing the rear towing means from the oral cavity and replacing the bracket with a wire-fastening bracket can be solved in the related art, thereby improving the convenience of correction.

On the other hand, the towing fixing portion 320 may be provided with a towing tail portion 325 extending to the rear side so as to correspond to the first towing direction (f1) to transmit the towing force. Here, the traction tail portion 325 may be formed to be extended to a substantially continuous profile on the rear side of the traction fixing part 320. In addition, the traction tail portion 325 may be formed to extend parallel to the traction fixing unit 320 to be easily manufactured using a three-dimensional printer.

Accordingly, the traction force exerted in the first towing direction (f1) is transmitted to the traction fixing unit 20 as a whole, so that the orthodontic target tooth t1 is stably traction while the traction tail portion 325 is driven by the traction force. ) Can be prevented from being broken from the tow fixing unit 320.

Of course, in some cases, the towing tail portion 325 is substantially continuous with the inclined rear surface of the towing fixing portion 320 as it is formed to be inclined at a predetermined obtuse angle with the outer surface 324 of the towing fixing portion 320. It can also be extended to a profile. Accordingly, since the tooth to be corrected (t1) is extended so as to be disposed as close as possible to the profile of the gum portion leading to the palate (3), the orthodontic appliance 300 can be installed more compactly in the oral cavity.

Figure 4 is an exemplary view showing an orthodontic appliance according to another embodiment of the present invention, Figures 5a and 5b and Figure 5c is an exemplary view showing an orthodontic process by the orthodontic appliance according to another embodiment of the present invention . In this embodiment, since the basic configurations of the orthodontic bracket 410 and the tow fixing part 420 are the same as those of the above-described embodiment, detailed description of the same configuration will be omitted.

4 to 5c, the orthodontic tooth t1 exists in plural on the anterior side, and the orthodontic bracket 410 and the traction fixer 420 are the orthodontic tooth t1 ) May be provided in a plurality. Therefore, by using the orthodontic appliance 400, it is possible to simultaneously pull the target tooth portion T including the plurality of teeth to be corrected t1 at the same time to the rear.

Here, the orthodontic appliance 400 may be provided as a towing assembly further provided with a towing joint portion 430 that integrally connects the plurality of towing fixing portions 420. At this time, the towing assembly refers to the plurality of orthodontic brackets 410, the plurality of towing fasteners 420, and the plurality of towing fasteners 420 integrally connecting the towing joint unit 430. It is preferred to understand that is provided as a set. On both sides of the towing assembly, it is preferable that the towing guide bar 432 extended in the rear corresponding to the first towing direction f1 is provided.

In detail, the traction joint portion 430 includes a fixing portion 431 connecting the plurality of traction fixing portions 420 to be disposed corresponding to the dentition position of the target tooth portion T. In addition, the traction guide bar 432 is moved backward so that the traction force in the first towing direction f1 is simultaneously transmitted to the plurality of traction fixing units 420 connected through the fixing unit 431. That is, it is preferable to understand that the traction guide bars 432 are provided on both sides of the traction assembly, as the traction guide bars 432 are substantially provided on both sides of the traction joint part 430.

At this time, the traction guide bar 432 is extended corresponding to the first towing direction (f1), extending obliquely toward the rear side of the palatal anchorage line from the traction fixing unit 420 provided at both outermost ends of the traction assembly. It may be integrally connected through a pair of extension link portion (432a). Therefore, since the traction guide bar 432 avoids the molar portion in the oral cavity and the fixed bracket 441 fixed to the molar portion, it extends to the relatively wide space of the palatal side of the palatal side, so that installation convenience can be significantly improved.

In addition, it is preferable that the rear end of the traction guide bar 432 is formed to be round. Through this, even if the rear end portion of the traction guide bar 432 is moved adjacent to the lingual muscle side by the traction force, it is possible to prevent pain and foreign body sensation from being caused by contact or pressure to the palatal tissue. Moreover, the traction guide bar 432 may be connected to the traction fixing means 440 so that the front end side is not moved to the front side in the oral cavity, but the rear end side is moved to the rear side in the oral cavity. Therefore, the front teeth of the traction guide bar 432 is in contact with the lingual surface of the teeth to be corrected (t1) in the process that the target tooth portion (T) is moved to the entire rear of the oral cavity to prevent the rear movement is restricted or interfered can do.

In addition, the traction guide bar 432 may be extended to the rear from the crossing point corresponding to the palatal canal line by extending the pair of extension link portion 432a obliquely, but the tooth to be corrected t1 is stable at the same time. It is preferably provided symmetrically in a pair to be moved to the rear and towed.

In addition, the fixing part 431 is connected to the rear end side of the traction fixing unit 420, both ends of which are mutually neighboring, but the center portion is rounded toward the rear end side of the traction guide bar 432, thereby correcting mutual neighbors. It can be spaced from between the target teeth. Therefore, the area between the interdental of the tooth to be corrected can be minimized, and hygiene in the oral cavity using dental floss during the orthodontic treatment is easy. Moreover, as the fixing part 431 is formed to be rounded to the rear, both ends may be extended in a direction close to the first towing direction f1, so that the traction force to the rear is more stably transmitted to each traction fixing unit 420. It may be.

At this time, the fixing portion 431 may be integrally formed with the towing fixing portion 420, as shown in the drawing, and in some cases, the fixing portion, the extension link portion, the towing guide bar and the first extension hook The unit is integrally formed, and the plurality of towing fasteners may be separately provided. Accordingly, the traction fixing unit 420 may be slide-coupled with the orthodontic bracket 410 while being fixed to each connection point of the fixing unit.

Moreover, the coupling direction of the fixing part and the traction fixing unit may also be formed corresponding to the first towing direction f1. And, as the connecting point of the fixing part is provided with a stopper means that slides from the front side of the traction fixing unit and is interlocked and restrained at the rear side, the mutual fixing force by the traction force in the first towing direction f1 is more robust. It may be formed.

On the other hand, the traction guide bar 432 is connected through, the traction fixed fixed to the fixed areas formed on both sides of the target tooth portion (T) to provide traction in response to the first towing direction (f1) It is preferred that the means 440 is further included.

Here, the traction fixing means 440 may include a pair of fixing brackets 441, a traction connecting bar 442, a guide portion 443, and a tension connecting portion 444. In detail, the pair of fixed brackets 441 are fixed to both sides of the fixed area, and the traction connecting bar 442 is provided to connect between the pair of fixed brackets 441. At this time, as shown in the drawing, the fixing area may be formed of both sides of the posterior teeth, and in some cases, the fixing bracket 441 may be fixed to the palatal side through a fixing screw or the like.

In addition, a reinforcement bracket 446 may be further provided in the front-rear direction of the fixing bracket 441 to reinforce the fixing force of the fixing bracket 441. Therefore, it is possible to prevent the traction fixing means 440 from being reversely pulled to the front side in the oral cavity by the tensile force of the tensile connecting portion 444.

In addition, the guide portion 443 having a through hole 443a is formed on both sides of the traction connecting bar 442 so that the traction guide bar 432 is inserted through and slides in correspondence with the first towing direction f1. Is provided. In addition, the tension connection portion 444 is the traction guide bar 432 and the traction guide bar 432 so as to move backward in response to the first towing direction (f1) in the state penetrated through the guide portion 443 It is provided to elastically connect the traction connecting bar (442).

In detail, a first tension hook portion 433 to which one end of the tension connection portion 444 is selectively fastened may be provided on the front end side of the traction guide bar 432. In addition, the traction connection bar 442 may be provided with a second tension hook portion 445 to which the other end of the tension connection portion 444 is selectively fastened. Accordingly, when the tensile connecting portion 444 is fastened to the first tensile hook portion 433 and the second tensile hook portion 445, the traction guide bar 432 is oral by the tensile force of the tensile connecting portion 444. As the slide moves to the side of my tongue, the target tooth portion T may be towed rearward at the same time as a whole.

Here, the tensile connection portion 444 may be provided with a rubber material that is elastically stretched, and optionally by adjusting the length gap that is fastened to each tensile hook portion 433,445, the tensile force is applied to the traction guide bar 432 The paper may be provided with a wire or a chain. At this time, the tensile connection portion 444 is a material that can be reliably towed to the target tooth portion (T) by having a tensile force greater than the force to return to the original protruding position of each orthodontic tooth (t1) It is preferably provided. Accordingly, as the distance between the front end portion of the traction guide bar 432 and the traction connecting bar 442 is narrowed, the traction guide bar 432 is moved backward, so that the traction assembly can be entirely towed to the rear of the oral cavity. .

On the other hand, each coupling direction (f3) of the plurality of orthodontic brackets 410 and the plurality of traction fixing units 420 is preferably formed to correspond to the traction direction (f1) at the same time.

In detail, the orthodontic bracket 410 may be individually designed on each orthodontic tooth image displayed on the image, based on the scanning image obtained by scanning the oral cavity of the orthodontic subject. Then, the design information of the tow fixing part is virtually arranged in the design information of the orthodontic bracket designed individually on the tooth to be corrected, and the design information of the fixing part interconnecting the design information of the tow fixing part is to be virtually arranged. You can. At this time, it is preferable to understand the design information of the tow fixing unit as position information corresponding to the orthodontic bracket designed individually for the orthodontic teeth. In addition, when the design information of the traction guide bar, the extension link portion, and the second extension hook portion is virtually arranged to complete the design of the traction joint portion, a real traction joint portion 430 may be manufactured based on this.

Accordingly, the traction joint part 430 may precisely correspond to the positions of the plurality of orthodontic brackets 410, where the positions of the plurality of traction fixers 420 are respectively attached to the teeth t1 to be corrected. have. Through this, since the traction assembly is simultaneously moved to the posterior side of the oral cavity, the dental target portion T is traction as a whole, so that the orthodontic treatment can proceed quickly.

In addition, even if the orthodontic bracket 410 has different positions and directions corresponding to the teeth t1 to be corrected, the engaging direction f3 of the traction fixing unit 420 is substantially parallel to each other. Therefore, in the process of posterior towing, the inclination or distortion of each tooth is prevented, so that the reliability of orthodontic treatment can be significantly improved.

Moreover, each position of the traction fixing unit 420 is manufactured in a state arranged to correspond to each position to which the orthodontic bracket 410 is attached. Therefore, since the plurality of towing fasteners 420 are simultaneously coupled to the plurality of orthodontic brackets 410, installation convenience can be significantly improved.

Meanwhile, referring to FIGS. 5A to 5C, the premolar teeth on both sides of the target tooth portion T with the plurality of orthodontic teeth t1 protruding forward are extracted to form the extraction space 5. Then, the pair of fixing brackets 441 are fixed to each fixing tooth 2 on both sides of the fixing region. At this time, each inner surface of the pair of fixing brackets 441 may be designed to match the fixing surface of the fixing teeth 2. Therefore, the through direction of the guide portion 443 provided in the traction connecting bar 442 connecting between the pair of fixing brackets 441 may be installed to correspond to the first towing direction f1.

At this time, the orthodontic bracket 410 is individually attached to each orthodontic tooth t1 of the target tooth portion T. Here, each inner surface of the orthodontic bracket 410 may be formed to be individually molded with the lingual surface of each orthodontic target tooth t1.

In addition, the plurality of towing fasteners 420 by the towing joint part 430 are disposed integrally connected to the position where the orthodontic bracket 410 is installed. In addition, when the towing guide bar 432 is moved rearward while being inserted into the through hole 443a of the guide portion 443, the plurality of towing fixing portions 420 may include the plurality of orthodontic brackets 410. In the coupled and fixed state, the traction force acts in the first towing direction (f1). At this time, when each end of the tensile connecting portion 444 is connected to the first tensile hook portion 433 and the second tension hook portion 445, when a tensile force is applied, the traction guide bar 432 is the through hole In the state inserted into (443a), the traction is moved to the rear in the oral cavity corresponding to the first towing direction (f1). Therefore, a plurality of teeth to be corrected (t1) included in the target tooth portion (T) is simultaneously pulled to the axillary side and the position of the protruding anterior side protruding while closing the extraction space (5) can be primaryly corrected.

That is, in the present invention, the traction force to be pulled to the rear side is transmitted through the traction fixing unit 420 that is fixed to the orthodontic bracket 410. At this time, the round protrusion 422 formed in the traction fixing unit 420 is fitted and fixed to the edge of both ends of the second coupling hole 418 formed in the orthodontic bracket 410, and the orthodontic bracket 410 And since the elastic band is locked and fixed to the closed curved line profile formed along the side of the traction fixing portion 420, the traction force can be transmitted to the entire area of the orthodontic bracket 410.

Therefore, the teeth to be corrected t1 can be stably pulled in response to the first towing direction f1 as a whole without warping or tilting. In addition, reliability of orthodontic treatment can be improved because problems such as disconnection due to the traction force applied to the thin wire connecting the bracket in the prior art or the change of the orthodontic orthodontic position planned initially are eliminated.

In addition, when the elastic band is removed while the position of the target tooth portion T is moved rearward, and the round protrusion 422 is separated from the second coupling hole 418, the plurality of towing fixing portions ( 420) may be separated from the plurality of orthodontic brackets 410.

Here, the wire 16 is respectively in the first coupling hole 412 and the second coupling hole 418 to connect the plurality of orthodontic brackets 410 from which the plurality of towing fixing portions 420 are separated. Can be combined. In addition, the position and direction may be corrected in response to a second towing direction that is individually set for each tooth so that the tooth to be corrected t1 corresponds to a desired continuous dentition structure by the tension transmitted from the wire 16. . Here, the second towing direction is preferably understood as a direction in which the position and angle can be moved such that each orthodontic tooth t1 corresponds to the continuous dentition structure.

Of course, in some cases, the position and direction may be corrected first in response to the second towing direction so that the target tooth portion T corresponds to the preferred continuous dentition structure through the wire 16. In addition, the traction joint may be integrally connected to the plurality of traction fixing units to be tractionally moved backwards in the oral cavity. Moreover, the tension of the wire is transmitted, and the teeth to be corrected (t1) are corrected in correspondence with the second towing direction, and at the same time, the overall position of the target tooth portion (T) is towed backwards in response to the first towing direction. It is also possible. In this case, the opening side of each of the coupling holes 412 and 418 formed in the orthodontic bracket can be substantially covered by the traction fixing unit and the elastic band, thereby preventing the wire from being separated from the orthodontic bracket by the traction force. You may.

Furthermore, the traction fixing portion 420 from which the traction joint part 430 is removed may be coupled to the orthodontic bracket 410 while the wire 16 is coupled to each of the coupling holes 412 and 418. That is, the wire 16 itself is not a structure that is directly fixed to the orthodontic bracket 410, but only because the coupling hole is shielded by the traction fixing unit 420 and the elastic band, the traction height The coupling / replacement or the movement of the wire 16 may be easily performed by simply separating the top portion 420 and the elastic band.

As described above, the present invention, the orthodontic brackets 310 and 410 and the tow fixing portions 320 and 420 are mutually coupled and fixed, and the elastic bands wrap around the orthogonal brackets 310 and 410 and the tow fixing portions 320 and 420. It is towed to the posterior side of the oral cavity in a fixed state. Therefore, since the traction force is stably transmitted to the entire teeth, the reliability of the orthodontic treatment can be remarkably improved because it can be quickly moved backward without tilting or twisting the tooth to be corrected (t1).

In addition, by simply separating the traction fixing units 320 and 420 from the orthodontic brackets 310 and 410 where the coupling holes 412 and 418 of the wire 16 are integrally formed, the wires 16 for individual calibration of each tooth are provided. It can be easily fastened / separated and modified. Accordingly, the inconvenience of replacing and installing the rear towing means from the oral cavity and replacing the bracket with a wire-fastening bracket can be solved in the related art, thereby improving the convenience of correction. Moreover, the orthodontic stability can be improved by preventing the wire from breaking due to the traction force for the backward movement of the teeth applied to the thin wire connecting the bracket.

At this time, a direction f3 in which the traction fixing units 320 and 420 are coupled to the orthodontic brackets 310 and 410 and a first towing direction f1 to the rear correspond. Therefore, the orthodontic brackets 310 and 410 and the traction fixing units 320 and 420 are mutually coupled, and the outer surfaces of the orthodontic brackets 310 and 410 and the traction fixing units 320 and 420 are locked and fixed by the elastic band. At the same time as being towed, a strong bonding force is applied, so it can be stably corrected without being separated from each other during the calibration period.

Moreover, when provided with one traction assembly so that a plurality of teeth can be towed backwards at the same time, the coupling direction f1 of the plurality of orthodontic brackets 310 and 410 and the traction fixation 320 and 420 is formed in parallel. Therefore, it is possible to combine and tow the traction assembly all at once with one operation, so that the installation convenience and the speed of correction can be significantly improved. In addition, since the overall shape of the orthodontic appliance 300,400 substantially corresponds to the profile leading to the tooth t1 and palate 3 to be corrected, it is installed compactly in the oral cavity to minimize foreign body sensation and discomfort caused by the subject to be corrected. Can be.

On the other hand, the terms "include", "compose", "have" or "have" as described above mean that the component can be inherent, unless otherwise stated. It should be construed that other components may be included rather than excluded. All terms, including technical or scientific terms, have the same meaning as generally understood by a person skilled in the art to which the present invention pertains, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted as being consistent with the contextual meaning of the related art, and are not to be interpreted as ideal or excessively formal meanings unless explicitly defined in the present invention.

As described above, the present invention is not limited to each of the above-described embodiments, and it is possible to be modified by a person skilled in the art to which the present invention pertains without departing from the scope of the claims of the present invention. And, these modifications are within the scope of the present invention.

310: orthodontic bracket 311: base
312: first coupling hole 314: first recessed groove
317: protruding coupling portion 318: second coupling hole
320: towing fixing part 321: joint fitting
322: round protrusion 323: second depression groove
325: towing tail portion 330: elastic band
430: towing joint part 431: fixing part
432: towing guide bar 440: towing fixing means
441: Fixed bracket 442: Towing connecting bar
443: guide portion 443a: through hole
444: tensile connection 300,400: orthodontic appliance

Claims (6)

The base portion is fixed to the surface of the tooth to be corrected, and the first coupling hole to which the wire providing tension is formed is transversely formed, and the second coupling hole is formed to be transversely protruded at the rear side of the base portion. Orthodontic bracket including a protrusion assembly;
It is connected to the traction fixing means fixed to the inside of the oral cavity and is a traction height formed at the end of the mating coupling part which is connected to the protruding coupling part and is detachably coupled to the traction force in the first towing direction in which the orthodontic tooth moves backward. government; And
Orthodontic appliance comprising an elastic band that is interpolated and coupled to the base portion and the recessed groove formed along the side portion of the towing fixing portion so that the orthodontic bracket and the towing fixing portion are fixed to each other. According to claim 1,
A round protrusion is protruded in a hemispherical shape so as to be selectively fitted into the rim of both ends of the second coupling hole in the molded coupling part,
Orthodontic apparatus, characterized in that the recessed groove includes a first recessed groove and a second recessed groove which are respectively recessed in a continuous closed curved line profile on the side portions of the base portion and the tow fixing part. According to claim 2,
The protruding coupling portion is narrowed and extended protruding toward the end of the rear central portion of the base portion so as to form a matching region to be mated with the protruding coupling portion,
The orthodontic appliance is formed at the end facing the base portion, but an orthodontic appliance characterized in that an inclined surface is formed so as to fit with the protruding engaging portion. According to claim 1,
The first wire receiving portion and the second wire receiving portion corresponding to the diameter of the wire but narrower than the diameters of the first coupling hole and the second coupling hole are formed in the base portion and the protruding coupling portion, respectively, in communication with each other.
Orthodontic appliance, characterized in that the first wire receiving portion is communicated to the front of the base portion from the first coupling hole, and the second wire receiving portion is communicated to the outside of the base portion from the second coupling hole. According to claim 1,
The towing fixing portion is provided with a towing tail portion extending to the rear side so as to correspond to the first towing direction and transmitting the pulling force,
The orthodontic bracket and the traction fixing unit are provided in plural to correspond to a plurality of teeth to be corrected, and are provided as a traction assembly further provided with a traction joint unit integrally connecting the traction fixing units,
Orthodontic appliance, characterized in that the orthodontic bracket and the direction of engagement of the tow fixing are formed to correspond to the first towing direction simultaneously. The method of claim 5,
Both sides of the traction assembly is provided with a traction guide bar extending rearwardly corresponding to the first traction direction, and the traction guide means is selectively connected to the traction guide bar to provide traction force corresponding to the first traction direction. In order to be fixed to the fixed area formed behind the plurality of teeth to be corrected,
The traction fixing means is provided on both sides of the pair of fixed brackets fixed to both sides of the fixed area, the traction connection bar connecting the pair of fixed brackets, and the traction connection bar, corresponding to the first towing direction. Orthodontic appliance, characterized in that it comprises a guide portion formed with a through hole so that the traction guide bar slides, and a tension connection for connecting the traction guide bar and the traction connecting bar to be elastically tensioned.

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