Orthodontic traction structure and use method thereof

Abstract

The invention discloses an orthodontic traction structure and a use method thereof, the orthodontic traction structure comprises: a traction arm, the installation end of which is provided with a traction seat, and the traction end of the traction arm is provided with a traction hook; a plurality of mounting holes are formed in the fixing plate at intervals, and each mounting hole can be selectively arranged to be a traction hole or a fixing hole; the traction arm is rotatably arranged in the traction hole in a penetrating manner, so that the traction direction of the traction arm is adjusted; the fixing hole is used for penetrating an implant, the fixing plate is fixed on a fixing surface through the implant, and the traction seat is pressed and limited between the fixing plate and the fixing surface; and a direction limiting structure is arranged between the traction seat and the fixing plate. The traction arm and the fixing plate are arranged to be of a split type traction structure, the traction position can be freely selected, the traction direction can be adjusted, the traction arm cannot continue to rotate through the direction limiting structure after adjustment is in place, then the traction base is pressed and limited through the fixing plate, the protrusion cannot be disengaged from the groove, and the traction effect is improved. The installation stability of the traction arm is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an orthodontic traction structure and a use method thereof. Background Art

[0002] In orthodontic treatment, traction structures are often used to apply corrective force to improve bone development. Skeletal Class III malocclusion is a common malocclusion in clinical practice, characterized by maxillary retraction and mandibular protrusion. Anterior traction treatment during the growth and development period can correct this type of malocclusion to a certain extent, improve facial shape, and reduce the possibility of surgery in adulthood.

[0003] The traditional traction structure uses teeth as support, and the orthopedic force is transmitted to the bone suture through the teeth, which will cause tooth compensation; therefore, titanium plates are currently used as traction structures to directly apply the orthodontic force to the jawbone, which can achieve greater bone effects and avoid tooth compensation, but it requires dentists to manually bend the titanium plates according to the bone surface morphology and adjust the direction of the traction arm. This method has the problem of fixed action points and limited bending angles. The fixed position and traction direction of the titanium plate need to be considered at the same time, and it is difficult to adjust the direction of the traction arm after the titanium plate is fixed. Anterior traction treatment requires patients to wear it by themselves for more than 12 hours a day. The traction position and traction arm direction directly affect the patient's wearing comfort and difficulty, and then affect the patient's wearing compliance and efficacy. In addition, adjusting the direction of the traction arm will increase the operation time and increase the risk of bleeding and infection. Summary of the invention

[0004] The purpose of the present invention is to provide an orthodontic traction structure and a method of using the same, so as to solve the technical problems of the current orthodontic traction structure that the traction position is fixed, the direction is limited and it is difficult to adjust the traction direction.

[0005] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0006] The present invention provides an oral orthodontic traction structure, comprising: a traction arm, a traction seat is provided at a mounting end of the traction arm, and a traction hook is provided at the traction end of the traction arm; a fixing plate, a plurality of mounting holes are arranged at intervals, and each of the mounting holes can be selectively set as a traction hole or a fixing hole; wherein the traction arm can be rotatably penetrated into the traction hole to adjust the traction direction of the traction arm; the fixing hole is used to penetrate an implant, the fixing plate is fixed to a fixing surface through the implant and the traction seat is pressed and limited between the fixing plate and the fixing surface; a direction limiting structure is provided between the traction seat and the fixing plate, the direction limiting structure comprises a plurality of protrusions and a plurality of grooves arranged at intervals along the circumference of the mounting hole, and the protrusions can be embedded in the grooves; one of the grooves and the protrusions is provided on the inner side surface of the fixing plate, and the other is provided on the outer side surface of the traction seat.

[0007] In an embodiment of the present invention, the number of the mounting holes is at least three, any one of the mounting holes can be selectively set as the traction hole, and the number of the fixing holes is at least two.

[0008] In an embodiment of the present invention, any of the mounting holes arranged in the middle can be selectively set as the traction hole, and the traction hole is located between at least two of the fixing holes.

[0009] In an embodiment of the present invention, a plurality of reinforcement structures are disposed on the inner side surface of the fixing plate, and the reinforcement structures are located between two adjacent mounting holes.

[0010] In an embodiment of the present invention, the reinforcement structure includes a plurality of burrs, and the plurality of burrs can be embedded in the fixing surface.

[0011] In an embodiment of the present invention, the traction end of the traction arm passes through the traction hole from the inner side of the fixing plate and is bent to form a traction hook.

[0012] In an embodiment of the present invention, the traction arm has a limiting boss, and the limiting boss is connected to the traction seat and matches the mounting hole.

[0013] In an embodiment of the present invention, a plurality of grooves are evenly arranged along the circumference of the mounting hole on the inner side surface of the fixing plate and are connected to the mounting hole; a plurality of protrusions are evenly arranged along the circumference of the mounting hole on the outer side surface of the traction seat and are connected to the limiting boss.

[0014] In an embodiment of the present invention, the fixing plate is a titanium plate.

[0015] In an embodiment of the present invention, the mounting hole is a threaded hole, and the implant is an implant screw.

[0016] The present invention also provides a method for using an orthodontic traction structure, which is used for using the above-mentioned orthodontic traction structure; the method for using comprises the following steps: according to the preset fixing position of the fixing plate on a fixing surface, selecting two mounting holes as the two fixing holes, and selecting one mounting hole as the traction hole; passing the traction end of the traction arm through the traction hole from the inner side of the fixing plate; passing the two implants through the two fixing holes and pre-tightening them to the fixing surface, so that there is an adjustment gap between the fixing plate and the fixing surface for accommodating the traction seat; rotating the traction arm to adjust the traction direction of the traction arm, and the traction After the arm is adjusted into place, the protrusion is embedded in the corresponding groove; the two implants are fastened to the fixing surface, thereby fastening the fixing plate to the preset fixing position of the fixing surface, so that the traction seat is pressed and limited to the inner side of the fixing plate; or the traction arm is rotated to adjust the traction direction of the traction arm, and after the traction arm is adjusted into place, the protrusion is embedded in the corresponding groove, and then one end of the two implants is passed through the two fixing holes and fastened to the fixing surface, thereby fastening the fixing plate to the preset fixing position of the fixing surface, so that the traction seat is pressed and limited to the inner side of the fixing plate.

[0017] The characteristics and advantages of the present invention are:

[0018] The oral orthodontic traction structure and the method of using the same can freely select the traction position by setting the traction arm and the fixing plate as a split traction structure, and adjusting the traction direction of the traction arm by rotating the traction arm before the fixing plate is fastened to the fixing surface by the implant, and setting a direction limiting structure between the traction seat of the traction arm and the fixing plate, and being able to correspondingly fit the protrusion and the groove after being adjusted in place so that the traction arm cannot continue to rotate, and then after the fixing plate is fastened to the fixing surface, the traction seat is pressed and limited between the fixing plate and the fixing surface, so that the protrusion cannot fall out of the groove, and the installation stability of the traction arm is ensured. The traction position and traction direction can be flexibly selected by the present invention, meet clinical needs, and reduce surgical operation time and operation difficulty. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic diagram of the outer structure of the oral orthodontic traction structure in a usage state in the present invention.

[0021] Figure 2It is a side view of the matching position of the traction arm and the fixing plate in one embodiment of the present invention.

[0022] Figure 3 It is a schematic diagram of the inner structure of the oral orthodontic traction structure in a usage state in the present invention.

[0023] Figure 4 It is a schematic diagram of the outer structure of another usage state of the oral orthodontic traction structure of the present invention.

[0024] Figure 5 It is a schematic diagram of the inner structure of a part of the fixing plate in one embodiment of the present invention.

[0025] Figure 6 It is a schematic diagram of the inner structure of a part of the fixing plate in another embodiment of the present invention.

[0026] Figure 7 It is a schematic diagram of the outer structure of the traction arm in the present invention.

[0027] Figure 8 It is a schematic diagram of the outer structure of the entire fixing plate in one embodiment of the present invention.

[0028] Fig. 9 It is a schematic diagram of the outer structure of the entire fixing plate in another embodiment of the present invention.

[0029] Fig.10 It is a schematic diagram of the side sectional structure of the entire fixing plate in one embodiment of the present invention.

[0030] Fig.11 It is a side view of the matching position of the traction arm and the fixing plate in another embodiment of the present invention.

[0031] In the figure:

[0032] 1. Traction arm; 11. Traction seat; 12. Traction hook; 13. Limiting boss;

[0033] 2. fixing plate; 21. mounting hole; 22. traction hole; 23. fixing hole; 24. mounting groove; 25. reinforcement structure; 251. convex thorn; 26. annular part; 27. connecting part;

[0034] 3. Direction limiting structure; 31. Groove; 32. Protrusion. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] Implementation Method 1

[0037] like Figures 1 to 4 As shown, the present invention provides an oral orthodontic traction structure, comprising: a traction arm 1, a traction seat 11 is provided at a mounting end of the traction arm 1, and a traction hook 12 is provided at the traction end of the traction arm 1; a fixing plate 2, a plurality of mounting holes 21 are arranged at intervals, and each mounting hole 21 can be selectively set as a traction hole 22 or a fixing hole 23; wherein the traction arm 1 can be rotatably inserted into the traction hole 22 to adjust the traction direction of the traction arm 1; the fixing hole 23 is used to insert an implant, and the fixing plate 2 is fixed to a fixed surface through the implant and the traction is enabled. The guide seat 11 is compressed and limited between the fixed plate 2 and the fixed surface; a direction limiting structure 3 is provided between the traction seat 11 and the fixed plate 2, and the direction limiting structure 3 includes a plurality of protrusions 32 and a plurality of grooves 31 arranged at intervals along the circumference of the mounting hole 21, and the protrusions 32 can be embedded in the grooves 31; one of the grooves 31 and the protrusions 32 is provided on the inner side surface of the fixed plate 2 (that is, the side surface of the fixed plate 2 facing the fixed surface), and the other is provided on the outer side surface of the traction seat 11 (that is, the side surface of the traction seat 11 facing away from the fixed surface).

[0038] The oral orthodontic traction structure of the present invention can freely select the traction position by setting the traction arm 1 and the fixing plate 2 as a split traction structure. Before the fixing plate 2 is fastened to the fixing surface by the implant, the traction direction of the traction arm 1 is adjusted by rotating the traction arm 1, and a direction limiting structure 3 is set between the traction seat 11 of the traction arm 1 and the fixing plate 2. After the adjustment is in place, the protrusion 32 and the groove 31 are correspondingly engaged to prevent the traction arm 1 from continuing to rotate. Then, after the fixing plate 2 is fastened to the fixing surface, the traction seat 11 is pressed and limited between the fixing plate 2 and the fixing surface, so that the protrusion 32 cannot fall out of the groove 31, thereby ensuring the installation stability of the traction arm 1.

[0039] Specifically, the fixing plate 2 is preferably a titanium plate, which has high strength and light weight. The thickness of the fixing plate 2 is 1 mm to 2 mm. The material of the traction arm 1 is also titanium. Figure 3 , Figures 5 to 7 As shown, the plurality of grooves 31 and the plurality of protrusions 32 are preferably evenly spaced along the circumference of the mounting hole 21 to facilitate adjustment of the rotation angle of the traction arm 1. In some embodiments of the present invention, the protrusions 32 are provided on the traction seat 11, and the grooves 31 are provided on the fixing plate 2. The plurality of grooves 31 are arranged around the mounting hole 21 and are connected to the mounting hole 21. The number of the grooves 31 is six to eight, so that the traction arm 1 has better adjustment accuracy, meets the adjustment requirements of the traction direction, and has better structural strength. The number of the protrusions 32 is two, so that the two protrusions 32 can be embedded in the corresponding two grooves 31 to ensure the stability of the fit. As shown in FIG. Figure 5 As shown, in one embodiment, the number of grooves 31 is set to eight, and the interval angle is 45 degrees. Figure 6 As shown, in another embodiment, the number of the grooves 31 is set to six, and the interval angle is 60 degrees. In other embodiments of the present invention, the protrusion 32 is provided on the fixing plate 2, and the groove 31 is provided on the traction seat 11.

[0040] like Figure 1 and Figure 2 As shown, in the embodiment of the present invention, the traction end of the traction arm 1 passes through the traction hole 22 from the inner side of the fixing plate 2 and is bent to form a traction hook 12, that is, before the traction arm 1 is assembled with the fixing plate 2, the traction end of the traction arm 1 is generally linear, and then is bent to form a hook-shaped traction hook 12 after being assembled with the fixing plate 2. On the one hand, it is easy to assemble, and on the other hand, it can be bent according to actual needs, and the length of the traction arm 1 may not be specifically limited. After assembly, the traction end of the traction arm 1 is sheared to the required length according to the to-be-towed position, and then is bent into the traction hook 12.

[0041] In addition, if Figure 1 , Figure 2 , Figure 3 as well as Figure 7 As shown, in order to further improve the installation stability of the traction arm 1 and limit the radial displacement of the traction arm 1 in the mounting hole 21, the traction arm 1 has a limiting boss 13, which is connected to the traction seat 11 and matches the mounting hole 21, that is, the outer diameter of the limiting boss 13 is slightly smaller than the aperture of the mounting hole 21. A plurality of protrusions 32 on the traction seat 11 are arranged around the limiting boss 13. In one embodiment of the present invention, the aperture of the mounting hole 21 is 2 mm, and the outer diameter of the limiting boss 13 is 1.8 mm to 1.9 mm.

[0042] like Figure 8 and Fig. 9 As shown, in the embodiment of the present invention, the mounting hole 21 is a threaded hole, and the implant is an implant screw. The arrangement spacing and arrangement direction between the multiple mounting holes 21 are not specifically limited, and they can be arranged in a straight line direction as in the present embodiment, or in the shape of "L", "T", "Y", "I", etc.

[0043] In an embodiment of the present invention, the number of mounting holes 21 can be set to only two, one mounting hole 21 serving as a traction hole 22, and the other mounting hole 21 serving as a fixing hole 23. However, in order to improve the installation stability of the fixing plate 2 and the traction arm 1, as well as the applicable scope of the oral orthodontic traction structure, the number of mounting holes 21 is preferably more than three, such as three, four or more.

[0044] like Figure 1 and Figure 4As shown, in some embodiments of the present invention, any mounting hole 21 can be selected as the traction hole 22, that is, the mounting hole 21 arranged near the end of the fixing plate 2 and the mounting holes 21 arranged in the middle can both be selected as the traction holes 22, and then at least two of the remaining mounting holes 21 can be selected as the fixing holes 23.

[0045] refer to Figure 1 As shown, in some other embodiments of the present invention, any mounting hole 21 arranged in the middle can be selectively set as a traction hole 22, the number of the fixing holes 23 is at least two, and the traction hole 22 is located between at least two fixing holes 23, that is, the mounting hole 21 arranged near the end of the fixing plate 2 can only be selectively set as a fixing hole 23 and cannot be selectively set as a traction hole 22, and except for the mounting hole 21 set as the traction hole 22, the other mounting holes 21 can be set as the fixing hole 23, and it is only necessary to ensure that there is at least one fixing hole 23 on both sides of the traction hole 22 to install the implant, so that the fixing plate 2 can be fixed more firmly on the fixing surface, and the pressing force on the traction arm 1 can be larger and more uniform, thereby more effectively preventing the protrusion 32 from falling out of the groove 31. In addition, if there are redundant mounting holes 21 outside the two fixing holes 23, they can be sheared off.

[0046] like Figure 3 , Figure 5 as well as Figure 6 As shown, in some embodiments of the present invention, a plurality of grooves 31 or a plurality of protrusions 32 are provided around each mounting hole 21 to cooperate with the plurality of protrusions 32 or a plurality of grooves 31 of the traction seat 11 to form a direction limiting structure 3.

[0047] In some other embodiments of the present invention, a plurality of grooves 31 or a plurality of protrusions 32 are provided only around the mounting holes 21 arranged in the middle, so as to cooperate with the plurality of protrusions 32 or a plurality of grooves 31 of the fifth wheel 11 to form the direction limiting structure 3. If the number of mounting holes 21 is three, a plurality of grooves 31 or a plurality of protrusions 32 are provided only around the middle mounting hole 21; if the number of mounting holes 21 is four, a plurality of grooves 31 or a plurality of protrusions 32 are provided only around the two middle mounting holes 21.

[0048] Combination Figures 1 to 3 As shown, the assembly process of the oral orthodontic traction structure of the present invention is: first, according to the preset fixing position of the fixing plate 2 on the fixing surface, two mounting holes 21 are selected as the two fixing holes 23, and one mounting hole 21 is selected as the traction hole 22; the traction end of the traction arm 1 is passed through the traction hole 22 from the inner side of the fixing plate 2, thereby completing the assembly of the traction arm 1 and the fixing plate 2. Among them, the fixing surface is the bone surface of the jaw, and the fixing position of the fixing plate 2 is determined according to the bone surface morphology.

[0049] Combination Figures 1 to 3As shown, after the assembly of the traction arm 1 and the fixing plate 2 is completed, in some embodiments of the present invention, the two implants are passed through the two fixing holes 23 and pre-tightened to the fixing surface, so that there is an adjustment gap between the fixing plate 2 and the fixing surface for accommodating the traction seat 11; the traction arm 1 is rotated to adjust the traction direction of the traction arm 1, and after the traction arm 1 is adjusted to the right position, the protrusion 32 is embedded in the corresponding groove 31; the two implants are fastened to the fixing surface, thereby fastening the fixing plate 2 to the preset fixed position of the fixing surface, so that the traction seat 11 is pressed and limited to the inner side of the fixing plate 2. Specifically, the implant screw is first screwed into the fixed surface but not tightened, so that the traction seat 11 is not completely pressed between the fixed plate 2 and the fixed surface but can rotate with the traction arm 1 within the adjustment gap between the fixed plate 2 and the fixed surface to achieve adjustment of the traction direction; and then after the adjustment is in place, the implant screw is completely tightened to press the fixed plate 2, and the fixed plate 2 presses and fixes the traction seat 11 on the fixed surface, and embeds the protrusion 32 into the corresponding groove 31, so that the traction arm 1 cannot rotate, ensuring that the traction direction is fixed.

[0050] like Figure 2 As shown, after the assembly of the traction arm 1 and the fixing plate 2 is completed, in other embodiments of the present invention, the traction arm 1 is rotated to adjust the traction direction of the traction arm 1. After the traction arm 1 is adjusted to the right position, the protrusion 32 is embedded in the corresponding groove 31, and then one end of the two implants is passed through the two fixing holes 23 and fastened to the fixing surface, so that the fixing plate 2 is fastened to the preset fixed position of the fixing surface, so that the traction seat 11 is pressed and limited to the inner side of the fixing plate 2. Specifically, the traction arm 1 is first rotated to adjust the traction direction, and then after the adjustment is in place, the protrusion 32 is embedded in the corresponding groove 31, and then the implant screw is passed through the fixing hole 23 and tightened in the fixing surface to press the fixing plate 2, and the fixing plate 2 presses and fixes the traction seat 11 on the fixing surface, so that the traction arm 1 cannot rotate, ensuring that the traction direction is fixed.

[0051] Among them, the traction end of the traction arm 1 can be bent into a traction hook 12 during the assembly process of the traction arm 1 and the fixed plate 2, or after the traction direction is adjusted to the right position, the traction end of the traction arm 1 can be bent into a traction hook 12 according to the adjusted traction direction and the position to be tractioned.

[0052] like Fig.10 As shown, in order to further improve the embodiment of the present invention, the inner side surface of the fixing plate 2 is provided with a plurality of reinforcement structures 25, and the reinforcement structure 25 is located between two adjacent mounting holes 21. By providing the reinforcement structure 25, the installation stability of the fixing plate 2 can be further improved, and the mounting hole 21 as the traction hole 22 can be located between the two reinforcement structures 25, so that the pressing force on the fifth wheel 11 is more stable.

[0053] Specifically, the reinforcement structure 25 includes a plurality of convex thorns 251, and the plurality of convex thorns 251 can be embedded in the fixing surface. The fixing plate 2 has a plurality of annular portions 26, and a plurality of mounting holes 21 are correspondingly arranged at the plurality of annular portions 26. The plurality of annular portions 26 can be directly connected or connected through a connecting portion 27. The traction seat 11 is generally cylindrical, and the diameter of the traction seat 11 can be equal to or less than the outer diameter of the annular portion 26 and greater than the aperture of the mounting hole 21. The reinforcement structure 25 can be arranged on the inner side surface of the connecting portion 27, or at the connection of the two annular portions 26; the thickness of the connecting portion 27 is less than the thickness of the annular portion 26, and the inner side surface of the connecting portion 27 is arranged flush with the inner side surface of the annular portion 26. For example, in one embodiment of the present invention, the thickness of the connecting portion 27 is 1 mm, the thickness of the annular portion 26 is 1.5 mm, and the depth of the groove 31 and the height of the protrusion 32 are both 0.5 mm to 0.75 mm.

[0054] like Fig.11 As shown, in some embodiments of the present invention, the inner side of the fixing plate 2 further has a mounting groove 24 arranged corresponding to the direction limiting structure 3, and multiple grooves 31 or multiple protrusions 32 of the direction limiting structure 3 are arranged on the bottom surface of the mounting groove 24. The traction seat 11 can be accommodated in the mounting groove 24, so that the protrusion 32 or groove 31 arranged on the outer side surface of the traction seat 11 is matched with the corresponding groove 31 or protrusion 32 in the mounting groove 24, and the inner side surface of the traction seat 11 is flush with the inner side surface of the annular portion 26, so that they can both fit closely with the fixing surface, which is beneficial to improve the installation stability of the fixing plate 2.

[0055] Implementation Method 2

[0056] The present invention also provides a method for using an orthodontic traction structure, which is used to use the orthodontic traction structure. The orthodontic traction structure in this embodiment is the same as the orthodontic traction structure in the first embodiment in terms of specific structure, working principle and beneficial effects, which will not be described in detail here.

[0057] The method of using the present invention comprises the following steps:

[0058] According to the preset fixing position of the fixing plate 2 on a fixing surface, two mounting holes 21 are selected as two fixing holes 23, and one mounting hole 21 is selected as the traction hole 22;

[0059] Pass the traction end of the traction arm 1 through the traction hole 22 from the inner side of the fixing plate 2;

[0060] Pass the two implants through the two fixing holes 23 and pre-tighten them to the fixing surface, so that there is an adjustment gap between the fixing plate 2 and the fixing surface for accommodating the traction seat 11; rotate the traction arm 1 to adjust the traction direction of the traction arm 1, and after the traction arm 1 is adjusted to the right position, embed the protrusion 32 into the corresponding groove 31; fasten the two implants to the fixing surface, thereby fastening the fixing plate 2 to the preset fixed position of the fixing surface, so that the traction seat 11 is pressed and limited to the inner side of the fixing plate 2; or

[0061] The traction arm 1 is rotated to adjust the traction direction of the traction arm 1. After the traction arm 1 is adjusted to the right position, the protrusion 32 is embedded in the corresponding groove 31, and then one end of the two implants is passed through the two fixing holes 23 and fastened to the fixing surface, so that the fixing plate 2 is fastened to the preset fixing position of the fixing surface, so that the traction seat 11 is pressed and limited to the inner side of the fixing plate 2.

[0062] Among them, the traction end of the traction arm 1 can be bent into a traction hook 12 during the assembly process of the traction arm 1 and the fixed plate 2, or after the traction direction is adjusted to the right position, the traction end of the traction arm 1 can be bent into a traction hook 12 according to the adjusted traction direction and the position to be tractioned.

[0063] The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. An orthodontic traction structure, characterized in that: include: A traction arm, a traction seat is provided at the mounting end thereof, and a traction hook is provided at the traction end of the traction arm; A fixing plate, having a plurality of mounting holes arranged at intervals, each of which can be selectively set as a traction hole or a fixing hole; The traction arm is rotatably inserted into the traction hole to adjust the traction direction of the traction arm; the fixing hole is used to insert an implant, and the fixing plate is fixed to a fixing surface through the implant so that the traction seat is pressed and limited between the fixing plate and the fixing surface; A direction limiting structure is provided between the traction seat and the fixing plate, and the direction limiting structure includes a plurality of protrusions and a plurality of grooves arranged at intervals along the circumference of the mounting hole, and the protrusions can be embedded in the grooves; one of the grooves and the protrusions is provided on the inner side surface of the fixing plate, and the other is provided on the outer side surface of the traction seat.

2. The orthodontic traction structure according to claim 1, characterized in that: The number of the mounting holes is at least three, any one of the mounting holes can be selectively set as the traction hole, and the number of the fixing holes is at least two.

3. The orthodontic traction structure according to claim 2, characterized in that: Any of the mounting holes arranged in the middle can be selectively set as the traction hole, and the traction hole is located between at least two of the fixing holes.

4. The orthodontic traction structure according to claim 1, characterized in that: The inner side surface of the fixing plate is provided with a plurality of reinforcement structures, and the reinforcement structures are located between two adjacent mounting holes.

5. The orthodontic traction structure according to claim 4, characterized in that: The reinforcement structure includes a plurality of ridges, and the plurality of ridges can be embedded in the fixing surface.

6. The orthodontic traction structure according to claim 1, characterized in that: The traction end of the traction arm passes through the traction hole from the inner side of the fixing plate and is bent to form a traction hook.

7. The orthodontic traction structure according to claim 1, characterized in that: The traction arm has a limiting boss, which is connected to the traction seat and matches the mounting hole.

8. The orthodontic traction structure according to claim 7, characterized in that: A plurality of grooves are evenly arranged along the circumference of the mounting hole on the inner side of the fixing plate and communicate with the mounting hole; a plurality of protrusions are evenly arranged along the circumference of the mounting hole on the outer side of the traction seat and connected to the limiting boss.

9. The orthodontic traction structure according to claim 1, characterized in that: The fixing plate is a titanium plate.

10. The orthodontic traction structure according to claim 1, characterized in that: The mounting hole is a threaded hole, and the implant is an implant screw.

11. A method for using an orthodontic traction structure, characterized in that: Used for using the oral orthodontic traction structure according to any one of claims 1 to 10; the method of use comprises the following steps: According to a preset fixing position of the fixing plate on one of the fixing surfaces, two of the mounting holes are selected as the two fixing holes, and one of the mounting holes is selected as the traction hole; Passing the traction end of the traction arm through the traction hole from the inner side of the fixing plate; Pass the two implants through the two fixing holes and pre-tighten them to the fixing surface, so that there is an adjustment gap between the fixing plate and the fixing surface for accommodating the traction seat; rotate the traction arm to adjust the traction direction of the traction arm, and after the traction arm is adjusted to a certain position, embed the protrusion into the corresponding groove; fasten the two implants to the fixing surface, thereby fastening the fixing plate to the preset fixing position of the fixing surface, so that the traction seat is pressed and limited to the inner side of the fixing plate; or The traction arm is rotated to adjust the traction direction of the traction arm. After the traction arm is adjusted to the right position, the protrusion is embedded in the corresponding groove, and then one end of the two implants is passed through the two fixing holes and fastened to the fixing surface, so that the fixing plate is fastened to the preset fixing position of the fixing surface, so that the traction seat is pressed and limited to the inner side of the fixing plate.

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