An orthodontic bracket

Abstract

The application relates to the technical field of tooth correction, in particular to an orthodontic bracket and an orthodontic bracket. The orthodontic bracket comprises a main body and a bottom plate, a rotating table is arranged between the bottom plate and the main body, the rotating table is rotationally connected with the main body, and a connecting assembly for detachably connecting the rotating table with the main body is arranged between the rotating table and the main body. The application has the effect of replaceable bracket main body.

Description

Technical Field

[0001] This application relates to the field of orthodontic technology, and in particular to an orthodontic bracket. Background Technology

[0002] Fixed orthodontics is a traditional dental procedure with a long history developed over generations. Orthodontic brackets control tooth movement by setting different torque values. However, most brackets on the market have fixed torque values ​​for each tooth position. If a dentist wants to adjust the bracket torque during treatment, they have to remove the original bracket and bond a new one. This puts the dentist in a passive position during treatment and can cause secondary damage to the patient's tooth surface. Summary of the Invention

[0003] The purpose of this application is to provide an orthodontic bracket with a replaceable bracket body.

[0004] The orthodontic bracket provided in this application adopts the following technical solution: an orthodontic bracket includes a main body and a base plate, a turntable is provided between the base plate and the main body, the turntable is rotatably connected to the main body, and a connecting component is provided between the turntable and the main body for detachably connecting the turntable and the main body.

[0005] By adopting the above technical solution, when the doctor needs to adjust the bracket torque during treatment, the main body can be disassembled and replaced with a main body of different torque. The base is glued to the patient's teeth, so there is no need to remove the base from the teeth, thereby reducing secondary damage to the patient's teeth.

[0006] Optionally, the connecting assembly includes a rotary rod and a limiting ring, a sliding groove is provided on the turntable, and a clearance groove is provided at the end of the turntable away from the main body, and the sliding groove communicates with the clearance groove;

[0007] The turntable is provided with a mounting groove, which is connected to the clearance groove and the sliding groove respectively;

[0008] A limiting block is fixedly connected to one end of the rotating rod away from the main body. The outer diameter of the limiting block is smaller than the inner diameter of the mounting groove, the outer diameter of the limiting block is larger than the width of the sliding groove, and the outer diameter of the rotating rod is smaller than the width of the sliding groove.

[0009] The limiting ring is used to restrict the sliding of the rotary rod within the groove.

[0010] By adopting the above technical solution, the main body is rotated, causing the rotating rod to slide in the groove. When the limiting block slides to the installation groove position, the main body is pulled out and replaced with a main body of different torque. Then, the limiting block is inserted into the clearance groove, and the main body is rotated so that the rotating rod rotates to the end of the groove away from the installation groove. The outer diameter of the limiting block is larger than the width of the groove, thereby preventing the main body and the turntable from separating from each other. Then, the limiting ring is used to limit the rotation of the main body. After the main body is replaced, the base does not need to be disassembled, thus reducing secondary damage to the patient's teeth.

[0011] Optionally, a rotating groove is provided on the turntable, and a rotating shaft is connected to the main body. The rotating shaft is inserted into the rotating groove and rotates within the rotating groove.

[0012] By adopting the above technical solution, the rotational connection between the turntable and the main body is achieved by inserting the rotating shaft into the rotating groove, thereby facilitating the disassembly of the main body.

[0013] Optionally, the limiting ring includes an elastic buckle and a limiting post, wherein the limiting post is fixedly connected to the elastic buckle;

[0014] The turntable sidewall is provided with a first slot, and the elastic buckle is adapted to the first slot.

[0015] The turntable sidewall is provided with a slot, the slot is connected to the clearance groove, and the limiting post is inserted into the slot and slides along the depth direction of the slot.

[0016] When the limiting post is inserted into the slot, it contacts the limiting block and the rotating shaft respectively and restricts the movement of the limiting block.

[0017] By adopting the above technical solution, the elastic buckle and the first slot cooperate with each other, and the limiting post abuts against the limiting block and the rotating shaft respectively, thereby restricting the rotation of the main body and reducing the possibility of the main body automatically detaching from the turntable.

[0018] Optionally, the limiting block has a first limiting surface on the side near the limiting post, and the limiting post abuts against the first limiting surface when it is inserted into the slot.

[0019] When both the limiting post and the limiting block are cylindrical, the limiting post and the limiting block have a line-to-line contact, and the contact point is a single point. This results in high pressure at the contact point and significant wear on both the limiting post and the limiting block. By adopting the above technical solution, a first limiting surface is provided on the limiting block. The contact between the limiting post and the first limiting surface is a line-to-surface contact, and the contact point is linear. This increases the contact area between the limiting block and the limiting post, reduces the pressure, and reduces wear on both the limiting block and the limiting post.

[0020] Optionally, a second limiting surface is provided on the side of the rotating shaft near the limiting post, and when the limiting post is inserted into the slot, the limiting post abuts against the second limiting surface and the first limiting surface respectively.

[0021] When both the limiting post and the rotating shaft are cylindrical, the contact between the limiting post and the rotating shaft is a line-to-line cross contact, and the contact area is point-like, resulting in high pressure at the contact area and thus greater wear on the limiting post and the rotating shaft. By adopting the above technical solution, a second limiting surface is provided on the rotating shaft, and the contact between the limiting post and the second limiting surface is a line-to-surface contact, with the contact area being linear. This increases the contact area between the rotating shaft and the limiting post, reduces the pressure, and thus reduces wear on the limiting post and the rotating shaft.

[0022] Optionally, a third limiting surface is provided on the side of the limiting post near the limiting block, and when the limiting post is inserted into the slot, the third limiting surface abuts against the second limiting surface and the first limiting surface respectively.

[0023] By adopting the above technical solution, a third limiting surface is set on the limiting post, so that the third limiting surface contacts the first limiting surface and the second limiting surface respectively. The contact part is a surface-to-surface contact, which further increases the contact area between the limiting post and the limiting block and the rotating shaft, thereby further reducing the pressure, and further reducing the wear on the limiting block, the limiting post and the rotating shaft, and increasing the service life of the bracket.

[0024] Optionally, the main body is provided with a second card slot. When the first card slot and the second card slot are in the same position, the first card slot and the second card slot are connected to form a limiting card slot, and the elastic buckle is adapted to the limiting card slot.

[0025] By adopting the above technical solution, when the elastic buckle is installed, the upper part of the elastic buckle cooperates with the second slot, and the lower part of the elastic buckle cooperates with the first slot. Thus, the elastic buckle simultaneously limits the main body and the turntable, thereby further improving the fixation of the main body and further increasing the stability of the bracket.

[0026] Optionally, a boss is fixedly connected to the elastic buckle, and a disassembly hole is provided on the boss.

[0027] When disassembling the elastic clip, it is necessary to use tools such as tweezers to hold both sides of the elastic clip. The friction between the tweezers and the elastic clip will cause the elastic clip to move, thereby disassembling it. However, moving the elastic clip by friction is relatively laborious. By adopting the above technical solution, the elastic clip can be disassembled by inserting a tool into the disassembly hole. The disassembly process is simple, quick and convenient.

[0028] Optionally, the limiting slot opening is provided with a disassembly rounded corner.

[0029] By adopting the above technical solution, a tool is inserted into the gap between the rounded corner and the elastic clip to pry open the elastic clip and remove it, thus increasing the ways to remove the elastic clip and increasing the diversity of disassembly.

[0030] In summary, this application includes at least one of the following beneficial technical effects:

[0031] 1. Rotate the main body to drive the rotating rod to slide in the groove. When the limiting block slides to the installation groove position, pull out the main body, replace it with a main body of different torque, and then insert the limiting block into the clearance groove. Rotate the main body so that the rotating rod rotates to the end of the groove away from the installation groove. The outer diameter of the limiting block is larger than the width of the groove, thus preventing the main body and the turntable from separating. Then use the limiting ring to restrict the rotation of the main body. After replacing the main body, there is no need to disassemble the base, thus reducing secondary damage to the patient's teeth.

[0032] 2. Through the cooperation of the elastic buckle and the first slot, the limiting post abuts against the limiting block and the rotating shaft respectively, thereby restricting the rotation of the main body and reducing the possibility of the main body automatically detaching from the turntable;

[0033] 3. A third limiting surface is provided on the limiting post, so that the third limiting surface contacts the first limiting surface and the second limiting surface respectively. The contact part is a surface-to-surface contact, which further increases the contact area between the limiting post and the limiting block and the rotating shaft, thereby further reducing the pressure, and thus further reducing the wear on the limiting block, the limiting post and the rotating shaft, and increasing the service life of the bracket. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the overall structure of an orthodontic bracket according to an embodiment of this application.

[0035] Figure 2 This is an exploded structural diagram of an orthodontic bracket according to an embodiment of this application.

[0036] Figure 3 This is a schematic diagram of the main structure of the embodiment of this application.

[0037] Figure 4 This is a schematic diagram of the structure of the turntable in an embodiment of this application.

[0038] Figure 5 This is a schematic diagram of the structure of the turntable, main body and limiting ring cooperating with each other in an embodiment of this application.

[0039] Figure 6 This is a schematic diagram of the structure of the locking cover according to an embodiment of this application.

[0040] In the diagram, 1 is the main body; 11 is the pivot; 111 is the second limiting surface; 12 is the second slot; 13 is the bayonet; 131 is the placement slot; 132 is the perforation; 133 is the elastic locking pin; 134 is the storage slot; 14 is the lock cover; and 141 is the limiting slide.

[0041] 2. Base plate;

[0042] 3. Turntable; 31. Turning groove; 32. Slide groove; 33. Mounting groove; 34. Clearance groove; 35. First slot; 36. Slot;

[0043] 4. Connecting components; 41. Rotary rod; 42. Limiting ring; 421. Elastic buckle; 422. Limiting post; 4221. Third limiting surface; 423. Boss; 424. Inclined surface; 425. Disassembly hole; 43. Limiting block; 431. First limiting surface;

[0044] 5. Limiting slot; 51. Removing rounded corner; 52. Rounding corner. Detailed Implementation

[0045] The following is in conjunction with the appendix Figure 1 -Appendix Figure 6 This application will be described in further detail below.

[0046] A type of orthodontic bracket, referring to Figure 1 It includes a main body 1 and a base plate 2. A turntable 3 is provided between the base plate 2 and the main body 1. One end of the turntable 3 is fixedly connected to the base plate 2, and the other end of the turntable 3 is rotatably connected to the main body 1.

[0047] Reference Figure 2 and Figure 3 A rotating groove 31 is formed through the center of the turntable 3. A rotating shaft 11 is fixedly connected to the center of the side of the main body 1 near the turntable 3. The rotating shaft 11 is inserted into the rotating groove 31 and rotates within the rotating groove 31. In other embodiments, a circular groove can be formed on the turntable 3, and a ring of protrusions can be fixedly connected to the end of the main body 1 near the turntable 3. The rotational connection between the turntable 3 and the main body 1 is achieved through the cooperation of the protrusions and the circular groove.

[0048] A connecting component 4 is provided between the turntable 3 and the main body 1. The connecting component 4 includes a rotating rod 41, which is fixedly connected to one end of the main body 1 near the turntable 3. The center line of the rotating rod 41 is offset from the center line of the rotating shaft 11.

[0049] Reference Figure 2 and Figure 4 The turntable 3 has a through-hole groove 32 and a mounting groove 33 on the side closest to the main body 1. The groove 32 is arc-shaped and combined with... Figure 3 The bending direction of the slide groove 32 is the same as the movement path of the rotating rod 41. The mounting groove 33 is connected to the slide groove 32. The rotating rod 41 is inserted into the slide groove 32 and slides along the length of the slide groove 32.

[0050] Reference Figure 3 and Figure 4 A circular clearance groove 34 is provided on the side of the turntable 3 away from the column. The clearance groove 34 is connected to both the mounting groove 33 and the sliding groove 32. A rotating rod 41 passes through the sliding groove 32 and is inserted into the clearance groove 34. One end of the rotating rod 41 inserted into the clearance groove 34 is fixedly connected to a limiting block 43. The outer diameter of the limiting block 43 is larger than the width of the sliding groove 32 and smaller than the inner diameter of the mounting groove 33. The outer diameter of the rotating rod 41 is smaller than the width of the sliding groove 32. When the rotating rod 41 and the limiting block 43 are in the mounting groove 33 position, the rotating rod 41 and the limiting block 43 can pass through the mounting groove 33 and be inserted into the clearance groove 34. Then, the main body 1 is rotated so that the rotating rod 41 slides along the length direction of the sliding groove 32, thereby placing the limiting block 43 below the sliding groove 32, thus preventing the limiting block 43 from being pulled out. This fixes the turntable 3 and the main body 1 relatively in the axial direction of the rotating rod 41.

[0051] Reference Figure 2 The connecting component 4 also includes a limiting ring 42, which includes an elastic buckle 421 and a limiting post 422. The elastic buckle 421 is arc-shaped, and a boss 423 is fixedly connected to the end of the elastic buckle 421 away from its opening. The top surface of the boss 423 is provided with a downwardly inclined surface 424, and two disassembly holes 425 are provided on the boss 423. This facilitates the insertion of tools into the disassembly holes 425. One end of the limiting post 422 is fixedly connected to the inner wall of the elastic buckle 421, and the other end of the limiting post 422 is set towards the opening of the elastic buckle 421.

[0052] Reference Figure 3 and Figure 4 The turntable 3 has a slot 36 and a first slot 35 on its side wall. The slot 36 communicates with the clearance slot 34. There are two first slots 35, located on opposite sides of the turntable 3. The main body 1 has two second slots 12 on its side wall, located on opposite sides of the main body 1. Figure 5 When the swivel rod 41 rotates to the end of the slide groove 32 that is away from the mounting groove 33, the first slot 35 and the second slot 12 are positioned to correspond, so that the first slot 35 and the second slot 12 are connected to form the limiting slot 5.

[0053] Reference Figure 5The limiting block 43 has a first limiting surface 431 on its side, and the rotating shaft 11 has a second limiting surface 111 on its side. The first limiting surface 431 and the second limiting surface 111 are on the same plane. The limiting post 422 has a third limiting surface 4221 on its side wall. When the first slot 35 and the second slot 12 are connected to form a limiting slot 5, the limiting post 422 passes through the slot 36 and is inserted into the clearance slot 34. This causes the third limiting surface 4221 to abut against the first limiting surface 431 and the second limiting surface 111, thereby restricting the rotation of the rotating shaft 11 and restricting the sliding of the limiting block 43. When the limiting post 422 is fully inserted into the slot 36, the elastic buckle 421 is sleeved on the turntable 3 and the main body 1, and the elastic buckle 421 cooperates with the limiting slot 5, thereby restricting the relative rotation of the main body 1 and the turntable 3.

[0054] The limiting slot 5 has a disassembly fillet 51 on the side away from the elastic buckle 421, and a chamfer 52 on the side of the limiting slot 5 closest to the elastic buckle 421. When disassembling the elastic buckle 421, a tool can be inserted into the gap between the disassembly fillet 51 and the elastic buckle 421 to pry it open. Alternatively, a tool can be inserted into the disassembly hole 425, causing the tool to move the elastic buckle 421 away from the turntable 3, thereby opening the elastic buckle 421 under the guidance of the chamfer 52, thus disassembling the elastic buckle 421.

[0055] Reference Figure 2 and Figure 3 The main body 1 has a bayonet 13 on the side away from the turntable 3. A lock cover 14 is installed inside the bayonet 13 and slides within the bayonet 13. The bottom wall of the bayonet 13 has a placement groove 131 and a storage groove 134. The placement groove 131 is used to place the bowwire. The bottom wall of the storage groove 134 has two through holes 132. Each of the two through holes 132 has a spring-loaded locking pin 133 installed within it.

[0056] Reference Figure 6 A limiting slide 141 is provided on the side of the lock cover 14 near the main body 1. The limiting slide 141 is wider at both ends and narrower in the middle. Figure 2 and Figure 3 Two elastic locking pins 133 are inserted into the limiting slide 141. The two elastic locking pins 133 abut against the two side walls of the limiting slide 141 respectively, pushing the lock cover 14, so that the two elastic locking pins 133 slide from one end of the limiting slide 141 to the other end of the limiting slide 141. When the two elastic locking pins 133 are in the middle of the limiting slide 141, the two elastic locking pins 133 undergo elastic deformation. When the two elastic locking pins 133 move to the other end of the limiting slide 141, the elastic locking pins 133 reset, thereby locking the lock cover 14.

[0057] The implementation principle of this application embodiment is as follows: When using the bracket, the base plate 2 is glued to the patient's tooth surface, and then the locking cover 14 is slid to move the locking cover 14 away from the main body 1, thereby opening the placement slot 131, placing the archwire in the placement slot 131, and then moving the locking cover 14 closer to the main body 1 to close the placement slot 131, so that the elastic locking post 133 abuts against the side wall of the limiting slide 141, thereby restricting the movement of the locking cover 14.

[0058] When it is necessary to adjust the bracket torque, first open the lock cover 14, take out the bow wire, and then use a tool to insert into the disassembly hole 425. Move the elastic buckle 421 away from the main body 1, thereby disengaging the elastic buckle 421 from the limiting groove 5 and pulling the limiting post 422 out of the slot 36. After disassembling the elastic buckle 421 and the limiting post 422, the main body 1 is no longer restricted from rotating by the limiting ring 42. At this time, rotate the main body 1 so that the rotating rod 41 moves along the length of the slide groove 32 towards the mounting groove 33. When the limiting block 43 is below the mounting groove 33, move the main body 1 away from the turntable 3, thereby disengaging the limiting block 43 from the mounting groove 33 and disassembling the main body 1.

[0059] Take out a new bracket with a different torque, insert the rotating shaft 11 into the rotating groove 31, insert the limiting block 43 into the mounting groove 33, and make the limiting block 43 enter the clearance groove 34 and disengage from the mounting groove 33. Rotate the main body 1 to move the rotating rod 41 away from the mounting groove 33 along the length of the sliding groove 32. When the rotating rod 41 moves to the end of the sliding groove 32 away from the mounting groove 33, install the limiting ring 42, so that the limiting post 422 is inserted into the clearance groove 34, and the third limiting surface 4221 abuts against the first limiting surface 431 and the second limiting surface 111 respectively. The elastic buckle 421 is sleeved on the main body 1 and the turntable 3 and cooperates with the limiting slot 5, thereby restricting the relative rotation of the main body 1 and the turntable 3. Then install the bow wire in the placement groove 131 and cover it with the lock cover 14.

[0060] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be included within the scope of protection of this application.

Claims

1. An orthodontic bracket, comprising a main body (1) and a base plate (2), characterized in that, A turntable (3) is provided between the base plate (2) and the main body (1). The turntable (3) is rotatably connected to the main body (1). A connecting assembly (4) is provided between the turntable (3) and the main body (1) to allow the turntable (3) to be detachably connected to the main body (1). The connecting assembly (4) includes a rotating rod (41) and a limiting ring (42). A sliding groove (32) is provided on the turntable (3). An avoidance groove (34) is provided at one end of the turntable (3) away from the main body (1). The sliding groove (32) communicates with the avoidance groove (34). The turntable (3) is provided with an installation groove (33), which is connected to the clearance groove (34) and the slide groove (32) respectively; The end of the swivel rod (41) away from the main body (1) is fixedly connected to a limiting block (43). The outer diameter of the limiting block (43) is smaller than the inner diameter of the mounting groove (33), the outer diameter of the limiting block (43) is larger than the width of the sliding groove (32), and the outer diameter of the swivel rod (41) is smaller than the width of the sliding groove (32). The limiting ring (42) is used to restrict the rotation rod (41) from sliding within the groove (32).

2. The orthodontic bracket according to claim 1, characterized in that, The turntable (3) has a rotating groove (31) and the main body (1) is connected to a rotating shaft (11). The rotating shaft (11) is inserted into the rotating groove (31) and can rotate within the rotating groove (31).

3. An orthodontic bracket according to claim 2, characterized in that, The limiting ring (42) includes an elastic buckle (421) and a limiting post (422), and the limiting post (422) is fixedly connected to the elastic buckle (421); The turntable (3) has a first slot (35) on its side wall, and the elastic buckle (421) is adapted to the first slot (35); The turntable (3) has a slot (36) on its side wall. The slot (36) is connected to the clearance groove (34). The limiting post (422) is inserted into the slot (36) and slides along the depth direction of the slot (36). When the limiting post (422) is inserted into the slot (36), it contacts the limiting block (43) and the rotating shaft (11) respectively and restricts the movement of the limiting block (43).

4. An orthodontic bracket according to claim 3, characterized in that, The limiting block (43) has a first limiting surface (431) on the side near the limiting post (422). When the limiting post (422) is inserted into the slot (36), the limiting post (422) abuts against the first limiting surface (431).

5. An orthodontic bracket according to claim 4, characterized in that, The rotating shaft (11) has a second limiting surface (111) on the side near the limiting post (422). When the limiting post (422) is inserted into the slot (36), the limiting post (422) abuts against the second limiting surface (111) and the first limiting surface (431) respectively.

6. An orthodontic bracket according to claim 5, characterized in that, The limiting post (422) has a third limiting surface (4221) on the side near the limiting block (43). When the limiting post (422) is inserted into the slot (36), the third limiting surface (4221) abuts against the second limiting surface (111) and the first limiting surface (431) respectively.

7. An orthodontic bracket according to claim 3, characterized in that, The main body (1) is provided with a second card slot (12). When the first card slot (35) and the second card slot (12) are in the same position, the first card slot (35) and the second card slot (12) are connected to form a limiting card slot (5). The elastic buckle (421) is adapted to the limiting card slot (5).

8. An orthodontic bracket according to claim 3 or 7, characterized in that, A boss (423) is fixedly connected to the elastic buckle (421), and a disassembly hole (425) is provided on the boss (423).

9. An orthodontic bracket according to claim 7, characterized in that, The limiting slot (5) is provided with a disassembly rounded corner (51).

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