An appliance for controlling the three-dimensional position of anterior teeth

Abstract

The utility model relates to a kind of appliance for controlling the three-dimensional position of front teeth, including the bracket being set on front teeth and the buccal tube being set on molar, bracket and buccal tube are connected by main arch wire;Bracket is connected with auxiliary arch splint, auxiliary arch splint is equipped with the auxiliary arch groove of lip side opening, buccal tube is equipped with main arch tube and auxiliary arch tube, main arch wire is set in main arch tube, auxiliary arch tube includes sleeve and the rotating core being set in sleeve and being rotatably connected with sleeve, rotating core is equipped with square hole being set in axial direction, auxiliary arch groove on auxiliary arch splint and auxiliary arch tube are connected by auxiliary arch wire with the square section of section, auxiliary arch wire is set in square hole on auxiliary arch tube;When torque is applied to front teeth, auxiliary arch wire is embedded in corresponding auxiliary arch groove, rotating core is rotated, auxiliary arch wire is twisted by square hole, auxiliary arch groove side wall is pushed by auxiliary arch wire side wall, and corresponding bracket is generated torsional moment, so as to apply torque to front teeth, the rotation angle of rotating core is adjusted to realize the control of front tooth torque size.

Description

Technical Field

[0001] This utility model relates to an orthodontic appliance for controlling the three-dimensional position of anterior teeth, belonging to the field of orthodontic technology. Background Technology

[0002] In orthodontic clinical practice, in order to achieve the ideal treatment effect, it is necessary to accurately control the three-dimensional position of the anterior teeth, and to control the torque and mesiodistal axial inclination of the anterior teeth.

[0003] Currently, methods for applying torque to anterior teeth include: 1. Bending a stainless steel square wire to directly adjust the torque of the anterior teeth. The disadvantage of this method is that the anchorage tooth is an adjacent tooth, and since the anchorage tooth is also a single-rooted tooth, it is prone to displacement after treatment. 2. Using high-torque brackets. This method only requires changing the size of the archwire to achieve a certain effect, but there is only one final position, which is not convenient for flexible adjustment; after applying torque, if it is necessary to adjust the mesiodistal inclination of the anterior teeth, the brackets need to be re-bonded for improvement, which is more cumbersome in clinical operation. Utility Model Content

[0004] In order to solve the problems existing in the prior art, this utility model provides an orthodontic appliance that facilitates the adjustment of the three-dimensional position of the anterior teeth.

[0005] To achieve the above objectives, the technical solution proposed by this utility model is as follows: an orthodontic appliance for controlling the three-dimensional position of anterior teeth, comprising brackets disposed on the anterior teeth and buccal tubes disposed on the molars, wherein the brackets and buccal tubes are connected by a main archwire; characterized in that: an auxiliary arch splint is connected to the brackets, the auxiliary arch splint is provided with an auxiliary arch groove with a labial opening, the buccal tube is provided with a main arch tube and an auxiliary arch tube, the main archwire is disposed inside the main arch tube, the auxiliary arch tube includes a sleeve and a rotating core disposed inside the sleeve and rotatably connected to the sleeve, the rotating core is provided with a square hole disposed along the axial direction, and the auxiliary arch grooves and auxiliary arch tubes on the auxiliary arch splint are connected by an auxiliary archwire with a square cross-section, wherein the auxiliary archwire is disposed in the square hole on the auxiliary arch tube;

[0006] When applying torque to the anterior teeth, the auxiliary archwire is inserted into the corresponding auxiliary arch slot. Rotating the mandrel causes the auxiliary archwire to twist through the square hole. The sidewall of the auxiliary archwire pushes against the sidewall of the auxiliary arch slot, generating a torsional torque on the corresponding bracket, thereby applying torque to the anterior teeth.

[0007] A further design of the above technical solution is as follows: the main bow tube is provided with a guide rail, and the auxiliary bow tube is slidably connected to the guide rail.

[0008] The guide rail is provided with a sliding groove, and the sleeve is provided with a slider that cooperates with the sliding groove. The auxiliary bow tube is slidably connected to the guide rail through the cooperation of the slider and the sliding groove.

[0009] A limiting mechanism is provided between the sleeve and the rotating core.

[0010] The limiting mechanism includes a protrusion on the outer wall of the rotating core and several grooves arranged circumferentially along the inner wall of the sleeve. The protrusion is embedded in the groove to achieve relative fixation of the sleeve and the rotating core in their natural state. When the rotating core is rotated with force, the protrusion slides out of the groove and is embedded in another groove.

[0011] The central angle between two adjacent grooves is 5-10°.

[0012] A flexible locking block is provided on the inner wall of the opening of the auxiliary bow slot. After the auxiliary bow wire is inserted into the auxiliary bow slot, the flexible locking block restricts the auxiliary bow wire within the auxiliary bow slot.

[0013] The opening of the auxiliary bow groove is provided with a detachable end cap. After the auxiliary bow wire is inserted into the auxiliary bow groove, the end cap is installed to restrict the auxiliary bow wire within the auxiliary bow groove.

[0014] The bracket is equipped with double vertical tubes, and the auxiliary bow clamp is equipped with a swing rod. The bracket and the auxiliary bow clamp are connected by a connector. One end of the connector is equipped with a rod for inserting the double vertical tubes, and the other end is hinged to the swing rod.

[0015] The connector has an insertion hole at the end near the auxiliary bow clamp that is larger than the size of the swing rod. The swing rod is inserted into the insertion hole. A strip groove is provided on one side of the swing rod. The connector has a screw hole corresponding to the strip groove. A bolt is screwed into the screw hole. One end of the bolt extends into the strip groove and can slide relative to the strip groove. The swing rod can swing relative to the insertion hole with the bolt as the hinge axis. Tightening the bolt will press the end of the bolt tightly against the inner wall of the insertion hole for limiting its position.

[0016] The beneficial effects of this utility model are as follows:

[0017] This invention involves setting an auxiliary archetype on the bracket and then twisting the auxiliary archwire to generate torque on the anterior teeth through the auxiliary archetype. At the same time, since the auxiliary archetype has an opening, the auxiliary archwire can be inserted or removed from the auxiliary archetype at any time, allowing for free decision on whether to apply torque to the teeth. This enables flexible formulation of orthodontic plans without the need to reset the orthodontic device.

[0018] This invention also includes a rotating core on the auxiliary archwire of the molars to facilitate adjustment of the torsion angle of the auxiliary archwire, thereby controlling the magnitude of the torque applied to the anterior teeth. Furthermore, this invention includes a slide rail on the buccal tube of the double-tube structure, allowing the auxiliary archwire to slide relative to the main archwire. When the patient requires gap closure, the auxiliary archwire can slide along the main archwire as the gap closes, thus achieving control of the anterior tooth torque without hindering gap closure.

[0019] In this utility model, the auxiliary arch clamp is hinged to the connecting piece, and the mesiodistal tilt of the auxiliary arch clamp can be adjusted, thereby applying a mesiodistal orthodontic force to the teeth and controlling the mesiodistal tilt of the teeth, i.e., the axial tilt.

[0020] This invention allows for adjustment of the torque applied to the anterior teeth and the orthodontic force applied to the distal and mesial teeth through the aforementioned structure, thereby achieving three-dimensional control of the anterior teeth. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the orthodontic appliance in use as shown in Example 1.

[0022] Figure 2 for Figure 1 Side view of the bitube buccal tube;

[0023] Figure 3 for Figure 1 Side view of the middle auxiliary bow clamp;

[0024] Figure 4 This is a schematic diagram showing the usage status of the orthodontic appliance in Example 2;

[0025] Figure 5 for Figure 4 Side view of the bitube buccal tube;

[0026] Figure 6 for Figure 4 Side view of the middle auxiliary bow clamp;

[0027] Figure 7 This is a schematic diagram of the connector and auxiliary arch clamp in the orthodontic appliance of Example 3;

[0028] Figure 8 for Figure 7 A half-section view;

[0029] Figure 9 for Figure 7 Side half-section view;

[0030] In the diagram: 1-Slot, 2-Double-tube cheek tube, 21-Main bow tube, 22-Auxiliary bow tube, 221-Sleeve, 222-Rotating core, 223-Protrusion, 224-Groove, 225-Operating hole, 23-Guide rail, 3-Main bow wire, 4-Auxiliary bow wire, 5-Connector, 51-Insertion rod, 52-Insertion hole, 53-Bolt, 6-Auxiliary bow clamp, 61-Auxiliary bow groove, 62-Flexible block, 63-End cap, 64-Swing rod, 641-Strip groove, 7-Traction hook. Detailed Implementation

[0031] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Example 1

[0032] like Figure 1As shown, the orthodontic appliance of this embodiment is used to apply torque to the anterior teeth. The appliance includes brackets 1 mounted on the anterior teeth and double-tube buccal tubes 2 mounted on the molars. The brackets 1 and double-tube buccal tubes 2 are connected by a main archwire 3. The torque applied to the anterior teeth is achieved through an auxiliary archwire 4. In this embodiment, an auxiliary archwire splint 6 is connected to the brackets 1, combined with… Figure 3 As shown, the auxiliary bow clamp 6 has an auxiliary bow groove 61 with a lip-side opening, and the double-tube cheek tube 2 has a main bow tube 21 and an auxiliary bow tube 22. The main bow tube 21 is used to set the main bow wire 3, combined with... Figure 2 As shown, the auxiliary bow tube 22 includes a sleeve 221 and a rotating core 222 disposed inside the sleeve 221 and rotatably connected to the sleeve 221. The rotating core 222 has a square hole arranged along the axial direction. The auxiliary bow wire 4 is disposed in the square hole and embedded in the auxiliary bow groove 61 of the auxiliary bow clamp, thereby connecting the auxiliary bow clamp 6 and the auxiliary bow tube 22. The auxiliary bow wire 4 is a 0.019*0.025 niti nickel-titanium square wire.

[0033] In this embodiment, the same bracket 1 and auxiliary archetype 6 can be set on multiple anterior teeth. When torque needs to be applied to a certain anterior tooth, the auxiliary archwire 4 is embedded in the corresponding auxiliary archetype 61. Rotating the rotating core 222 causes the auxiliary archwire 4 to twist through the square hole. Under the action of the torsional torque, the side wall of the auxiliary archwire 4 located in the auxiliary archetype 61 will push against the side wall of the auxiliary archetype 61, transmitting the torque to the corresponding bracket 1 and generating a torsional torque on the bracket, thereby applying torque to the anterior tooth. After the anterior tooth is corrected, the auxiliary archwire can simply be pushed out from the opening of the corresponding auxiliary archetype 61 without disassembling the main archwire, which does not affect other orthodontic operations. The auxiliary archwire 4 can also be embedded in the corresponding auxiliary archetype 61 of other anterior teeth, and the same method can be used to apply torque to the anterior tooth, without the need for frequent disassembly and installation of the orthodontic structure. If multiple anterior teeth need to be torque controlled at the same time, auxiliary archetype 61s can be installed on multiple anterior teeth at the same time.

[0034] Combination Figure 2 As shown, in this embodiment, a limiting mechanism is also provided between the sleeve 221 and the rotating core 222 for fixing them after they are rotated relative to each other to a certain angle.

[0035] The limiting mechanism includes a protrusion 223 on the outer wall of the rotating core 222 and several grooves 224 arranged circumferentially along the inner wall of the sleeve. The central angle between two adjacent grooves 224 is 5-10°. In this embodiment, four protrusions are evenly arranged circumferentially along the outer wall of the rotating core 222. The arrangement of the grooves 224 must ensure that the four protrusions can be simultaneously embedded in the grooves to achieve relative fixation of the sleeve and the rotating core in their natural state. When the rotating core 222 is rotated with force, the protrusion 223 slides out of the groove 224 and embeds into another groove, thereby facilitating the rotation of the auxiliary archwire 4. At the same time, the rotation angle of the auxiliary archwire can be controlled to achieve the purpose of controlling the torque of the anterior teeth. One end of the rotating core 222 is also provided with an operating hole 225 to facilitate the insertion of tools such as probes to rotate the rotating core.

[0036] Combination Figure 3 As shown, a flexible locking block 62 is provided on the inner wall of the opening of the auxiliary bow groove 61. When the auxiliary bow wire 4 is inserted, the flexible locking block 62 is squeezed to deform it, so that the auxiliary bow wire 4 can be inserted into the auxiliary bow groove 61. After insertion, the flexible locking block 62 returns to its original shape to restrict the auxiliary bow wire in the auxiliary bow groove and will not easily slip out. Similarly, as long as the auxiliary bow wire 4 is pushed with force, it can be pushed out of the auxiliary bow groove. Example 2

[0037] The orthodontic appliance in this embodiment is basically the same as that in Embodiment 1. However, this embodiment requires simultaneous space closure while applying torque to the anterior teeth; therefore, as... Figure 4 As shown, a guide rail 23 is provided on the main bow tube 21, and the auxiliary bow tube 22 is slidably connected to the guide rail 23.

[0038] Specifically, such as Figure 5 As shown, the guide rail 23 is provided with a sliding groove, and the sleeve is provided with a slider that cooperates with the sliding groove. The auxiliary arch tube 22 is slidably connected to the main arch tube 21 through the cooperation of the slider and the sliding groove. When the gap is closed, traction hooks 7 are set on the double-tube buccal tube 2 and the corresponding tooth bracket for traction.

[0039] Because the auxiliary archwire generates significant friction with the square hole after rotating at four large angles, it severely hinders the closure of the gap. To reduce the impact of excessive friction, the aforementioned double-tube buccal tube 2 with a sliding track is designed. During anterior tooth retraction, the main archwire, being a round wire, experiences less friction, and the anterior teeth move along this track. The auxiliary archwire, after applying force, experiences greater static friction with the anterior teeth and also with the auxiliary archwire tube 22. This means the entire anterior teeth and the auxiliary archwire tube 22 form a single unit. As the gap closes, the tube of the auxiliary archwire tube 22 slides along the sliding track, without affecting the closure of the gap.

[0040] Combination Figure 6 As shown, in this embodiment, a detachable end cap 63 is provided at the opening of the auxiliary bow groove 61. After the auxiliary bow wire is inserted into the auxiliary bow groove, the end cap 63 is installed to confine the auxiliary bow wire within the auxiliary bow groove. The end cap 63 has a groove slightly smaller than the thickness of the sidewall of the opening of the auxiliary bow groove 61. The end cap is made of flexible material and can be fixed to the auxiliary bow groove 61 by inserting the sidewall of the opening of the auxiliary bow groove 61 into the groove. Alternatively, a protrusion can be provided at the groove corresponding to the inner side of the opening, and a groove can be provided at the opening of the auxiliary bow groove 61 corresponding to the protrusion. The protrusion can be inserted into the groove, thereby fixing the end cap 63 to the auxiliary bow groove 61. Example 3

[0041] In this embodiment, the bracket 1 is provided with double vertical tubes, and the auxiliary bow clamp 6 is provided with a swing rod 64. The bracket 1 and the auxiliary bow clamp 6 are connected by a connector 5. Figure 7 , 8As described in section 9, one end of the connector 5 is provided with a rod 51 for inserting the double vertical tube, and the other end is provided with a hole 52 larger than the size of the swing rod 64. The swing rod 64 is inserted into the hole. A strip groove 641 is provided on one side of the swing rod. The connector 5 is provided with a screw hole corresponding to the strip groove 641. A bolt 53 is screwed into the screw hole. One end of the bolt extends into the strip groove 641 and can slide relative to the strip groove. This can adjust the length of the swing rod 64 extending into the hole 52, thereby adjusting the vertical position of the auxiliary arch splint 6 relative to the bracket 1. The swing rod 64 can also swing relative to the hole 52 with the bolt 53 as the hinge axis. Tightening the bolt will cause the end of the bolt to press the swing rod tightly against the inner wall of the hole for limiting. This can adjust the mesiodistal inclination of the auxiliary arch splint 6, so that the auxiliary archwire 4 generates a corrective force on the auxiliary arch splint 6, correcting the tooth axial inclination, that is, controlling the mesiodistal inclination of the teeth.

[0042] The technical solutions of this utility model are not limited to the above embodiments. All technical solutions obtained by equivalent substitution fall within the scope of protection claimed by this utility model.

Claims

1. An orthodontic appliance for controlling the three-dimensional position of anterior teeth, comprising brackets disposed on the anterior teeth and buccal tubes disposed on the molars, wherein the brackets and buccal tubes are connected by a main archwire; characterized in that: The bracket is connected to an auxiliary bow clamp, which has an auxiliary bow groove with a lip-side opening. The cheek tube has a main bow tube and an auxiliary bow tube. The main bow wire is set inside the main bow tube. The auxiliary bow tube includes a sleeve and a rotating core set inside the sleeve and rotatably connected to the sleeve. The rotating core has a square hole set along the axial direction. The auxiliary bow clamp and the auxiliary bow tube are connected by an auxiliary bow wire with a square cross-section. The auxiliary bow wire is set inside the square hole on the auxiliary bow tube. When applying torque to the anterior teeth, the auxiliary archwire is inserted into the corresponding auxiliary arch slot. Rotating the mandrel causes the auxiliary archwire to twist through the square hole. The sidewall of the auxiliary archwire pushes against the sidewall of the auxiliary arch slot, generating a torsional torque on the corresponding bracket, thereby applying torque to the anterior teeth.

2. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 1, characterized in that: The main bow tube is equipped with a guide rail, and the auxiliary bow tube is slidably connected to the guide rail.

3. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 2, characterized in that: The guide rail is provided with a sliding groove, and the sleeve is provided with a slider that cooperates with the sliding groove. The auxiliary tube is slidably connected to the guide rail through the cooperation of the slider and the sliding groove.

4. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 3, characterized in that: A limiting mechanism is provided between the sleeve and the rotating core.

5. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 4, characterized in that: The limiting mechanism includes a protrusion on the outer wall of the rotating core and several grooves arranged circumferentially along the inner wall of the sleeve. The protrusion is embedded in the groove to achieve relative fixation of the sleeve and the rotating core in their natural state. When the rotating core is rotated with force, the protrusion slides out of the groove and is embedded in another groove.

6. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 5, characterized in that: The central angle between two adjacent grooves is 5-10°.

7. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 6, characterized in that: A flexible locking block is provided on the inner wall of the opening of the auxiliary bow slot. After the auxiliary bow wire is inserted into the auxiliary bow slot, the flexible locking block restricts the auxiliary bow wire within the auxiliary bow slot.

8. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 6, characterized in that: The opening of the auxiliary bow groove is provided with a detachable end cap. After the auxiliary bow wire is inserted into the auxiliary bow groove, the end cap is installed to restrict the auxiliary bow wire within the auxiliary bow groove.

9. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 7 or 8, characterized in that: The bracket is provided with double vertical tubes, and the auxiliary bow clamp is provided with a swing rod. The bracket and the auxiliary bow clamp are connected by a connector. One end of the connector is provided with a plug for inserting the double vertical tubes, and the other end is hinged to the swing rod.

10. The orthodontic appliance for controlling the three-dimensional position of anterior teeth according to claim 9, characterized in that: The connector has an insertion hole at the end near the auxiliary bow clamp that is larger than the size of the swing rod. The swing rod is inserted into the insertion hole. A strip groove is provided on one side of the swing rod. The connector has a screw hole corresponding to the strip groove. A bolt is screwed into the screw hole. One end of the bolt extends into the strip groove and can slide relative to the strip groove. The swing rod can swing relative to the insertion hole with the bolt as the hinge axis. Tightening the bolt will press the end of the bolt tightly against the inner wall of the insertion hole for limiting its position.

Images