Long-arm vertical molar buccal tube

Abstract

The utility model discloses a long-arm vertical molar buccal tube which comprises a bracket and a buccal tube body, the two sides of the buccal tube body are connected with the bracket and an L-shaped first traction arm respectively, and the tail end of the first traction arm is connected with a second traction arm parallel to the buccal tube body. And the tail ends of the first traction arm and the second traction arm are respectively provided with a first traction hook and a second traction hook. According to the utility model, the adjustable force application point design is adopted, forces in different directions are applied to the molar through the control supporting point, the vertical movement of the root can be controlled, the overall parallel movement can also be carried out, and the three-dimensional accurate control of the molar can be realized through the combined use, so that the treatment requirements of different patients can be met; and the possibility of personalized design and adjustment is provided for the patient.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medical instruments, in particular to a long-arm vertical molar buccal tube used for orthodontic treatment of teeth. Background Art

[0002] As a new auxiliary correction method, buccal tissue traction technology uses elastic force to move buccal teeth to the lingual side to obtain space by bonding buttons on the molars and using implants or temporary anchoring devices as fulcrums. This technology avoids the stimulation of soft tissues by archwires, expands the dental arch, avoids tooth extraction, and reduces treatment time, so it is very popular.

[0003] For example, utility model patent CN 219109790 U discloses a long-arm multi-hook buccal tube, which provides a buccal tube with multiple hooks and multiple tubes, so that the traction has a wider angle and range, and accessories such as auxiliary wires can be set on the auxiliary tube, which greatly increases the use space of the accessories. However, the device still has the following disadvantages: First, for patients with severe malocclusion, it is often difficult to achieve satisfactory tooth movement effects by relying solely on buccal tissues, and it needs to be used in conjunction with the traditional bracket-archwire system, which increases the complexity; second, for some patients with severe inclination of the molars themselves, the device is difficult to achieve accurate displacement of the molars. Utility Model Content

[0004] In view of the deficiencies of the above-mentioned prior art, the utility model provides a long-arm vertical molar buccal tube that can accurately control molars. It adopts an adjustable force application point design and applies forces in different directions to the molars by controlling the fulcrum. It can control the vertical movement of the roots and the overall parallel movement. They can also be used in combination to achieve three-dimensional precise control of the molars, meet the treatment needs of different patients, and provide patients with the possibility of personalized design and adjustment.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A long-arm vertical molar buccal tube comprises a bracket and a buccal tube, wherein the two sides of the buccal tube are respectively connected to the bracket and an L-shaped first traction arm, the end of the first traction arm is connected to a second traction arm parallel to the buccal tube, and the ends of the first traction arm and the second traction arm are respectively provided with a first traction hook and a second traction hook.

[0007] Furthermore, the first traction hook is located near the molar resistance center and is used to pull the teeth to move as a whole.

[0008] Furthermore, the second traction hook is located on the distal horizontal line of the canine impedance center and is used to pull the tooth to control root movement.

[0009] Compared with the prior art, the advantages and effects of the utility model are:

[0010] 1. Two independent traction hooks are set to realize the root control vertical movement and overall parallel movement of the molars respectively. The simultaneous use of the two hooks can also realize the three-dimensional composite precise movement control of the molars, providing more treatment options for complex orthodontic treatment and better meeting clinical needs;

[0011] 2. Compared with the traditional technology that needs to rely on the brackets or tubes of the adjacent teeth for support, the traction system of this device is relatively independent, avoiding damage to the adjacent teeth and expanding the scope of application;

[0012] 3. Considering the limited space of the human oral vestibule, the transverse traction arm of the device is longer, which makes up for the defect that the longer longitudinal traction arm may not have enough space to perform traction in actual operation;

[0013] 4. The L-shaped traction arm avoids the brackets or accessories of the anterior teeth, does not affect other operations, and helps to reduce the overall treatment time;

[0014] 5. The device is suitable for both invisible braces and fixed braces. It can be used in combination with ordinary archwire braces or without archwire guidance.

[0015] 6. The device has a simple structure, and the various components can be assembled using detachable connection methods, such as threaded connection, snap connection, etc., which is not only easy to make and install, but also convenient for daily maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a top view of the utility model.

[0018] FIG3 is a schematic diagram of the working of the utility model Figure 1 .

[0019] FIG4 is a schematic diagram of the working of the utility model Figure 2 .

[0020] Figure number identification: 1. bracket; 2. buccal tube; 3. first traction arm; 4. first traction hook; 5. second traction arm; 6. second traction hook; 7. implant screw; 8. rubber ring. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with embodiments, but the present invention is not limited to these embodiments.

[0022] The long arm vertical molar buccal tube described in this embodiment is as follows Figure 1 and 2As shown, it includes a bracket 1 and a buccal tube 2, the two sides of the buccal tube 2 are respectively connected to the bracket 1 and an L-shaped first traction arm 3, the end of the first traction arm 3 is connected to a second traction arm 5 parallel to the buccal tube 2, and the ends of the first traction arm 3 and the second traction arm 5 are respectively provided with a first traction hook 4 and a second traction hook 6.

[0023] According to clinical needs, the first traction hook 4 or the second traction hook 6 can be used alone or in combination. The first traction hook 4 or the second traction hook 6 is connected to the implant screw 7 using a rubber ring 8 to transmit the traction force to the molar to move it in the designed direction.

[0024] As shown in FIG3(a), in the case where the molars that have not tilted move toward the mesial direction, the molars need to be moved forward in parallel as a whole. At this time, the first traction hook 4 is used, and the intramandibular support is used. The implant screw 7 in the mandible is used as a fulcrum to apply a forward traction force. Since the first traction hook 4 is located near the impedance center of the molar (i.e., point A in the figure), its traction direction is mesiodistal, which can realize the movement of the molars in the direction of the dental arch, and finally achieve the effect shown in FIG3(b).

[0025] As shown in FIG4(a), for the molars that have already tilted (no forward movement is required), root control movement is required. In this case, a second traction hook 6 is required, and intermaxillary support is used. The implant screw 7 in the maxillary bone is used as a fulcrum to apply traction force toward the lingual side. Since the second traction hook 6 is located on the distal horizontal line of the impedance center of the canine (i.e., point B in the figure), its traction direction is buccolingual, which can realize the vertical movement of the molar, and finally achieve the effect shown in FIG4(b).

[0026] In order to achieve more precise movement control of the molars, you can also choose to use the first traction hook 4 and the second traction hook 6 at the same time to form two sets of traction systems in the vertical direction and the horizontal direction with the mandibular fulcrum and the maxillary fulcrum respectively. Through the cooperation of the two sets of traction systems, the tilted molars can be moved vertically and horizontally at the same time to achieve three-dimensional precise positioning.

[0027] In addition, the optimal traction direction can be determined by adjusting the length, direction, curvature and other parameters of the first traction arm 3 or the second traction arm 5. Rubber rings with different elastic coefficients can also be selected to accurately achieve the required traction force, ultimately achieving precise positioning of the molars.

[0028] The operation method of this embodiment is as follows:

[0029] 1. Use an adhesive to bond the buccal tube described in this embodiment to the buccal surface of the molar to be moved;

[0030] 2. According to the direction of molar movement, the first traction hook 4 or the second traction hook 6 is used alone, or both are used in combination;

[0031] 3. Install the implant screw 7 (or bone screw) at the corresponding position in the oral cavity;

[0032] 4. Adjust the angle and direction of the first traction arm 3 and the second traction arm 5, and connect the first traction hook 4 or the second traction hook 6 to the implant screw 7 (or bone screw) in the oral cavity through the rubber ring 8 to form a complete traction system;

[0033] 5. Adjust the rubber ring to control the traction force;

[0034] 6. Remove and inspect once a month to observe the movement of the molars and implement the next course of treatment.

Claims

1. A long-arm vertical molar buccal tube, comprising a bracket (1) and a buccal tube (2), characterized in that: The two sides of the buccal tube (2) are respectively connected to a bracket (1) and an L-shaped first traction arm (3); the end of the first traction arm (3) is connected to a second traction arm (5) parallel to the buccal tube (2); the ends of the first traction arm (3) and the second traction arm (5) are respectively provided with a first traction hook (4) and a second traction hook (6).

2. The long-arm vertical molar buccal tube according to claim 1, characterized in that: The first traction hook (4) is located near the molar resistance center and is used to pull the teeth to move as a whole.

3. The long-arm vertical molar buccal tube according to claim 1, characterized in that: The second traction hook (6) is located on the distal horizontal line of the canine impedance center and is used to pull the tooth to control root movement.

4. The long-arm vertical molar buccal tube according to claim 1, characterized in that: The bracket (1), the buccal tube (2), the first traction arm (3), the first traction hook (4), the second traction arm (5), and the second traction hook (6) are assembled in a detachable connection manner.

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