Orthodontic forceps

Abstract

The utility model relates to orthodontic forceps which comprise a first forceps body, a second forceps body and a pin shaft, and the first forceps body and the second forceps body are movably connected through the pin shaft. The first plier body comprises a first handle at the tail, a first plier arm in the middle and a first plier head at the head. The second plier body comprises a second handle at the tail, a second plier arm in the middle and a second plier head at the head. The first clamp arm and the second clamp arm are respectively provided with a corresponding pin shaft hole for mounting a pin shaft; the first plier head is of a triangular prism structure perpendicular to the first plier arm; the second clamp head is of a groove structure formed by two inclined faces, and the groove structure is perpendicular to the second clamp arm. The triangular prism of the first plier head is meshed with the groove structure of the second plier head, and the included angle between two inclined faces of the groove structure ranges from 60 degrees to 90 degrees. The arch wire bending device is good in arch wire bending consistency and easy and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medical instruments, in particular to an orthodontic forceps. Background Art

[0002] Archwires are used to correct teeth. Archwires are generally a section of special steel wire with a certain elastic force. The archwire is bent to utilize the rebound force generated by the archwire returning to its original shape after bending, so as to apply a corrective force to the deformed or crooked teeth, causing the teeth to move slowly. Continuous application of force causes bone absorption in the direction of tooth movement. As the teeth drift, the ligaments surrounding them begin to be pulled. "Osteoclasts" are produced on the squeezed side of the tooth, which slowly absorb the alveolar bone in the pressure zone. Conversely, "osteoblasts" are produced in the negative pressure zone, which grow new alveolar bone. As a result, the teeth slowly move until they are neatly arranged, thus achieving the purpose of tooth correction.

[0003] Therefore, bending the archwire plays a very important role in the process of tooth correction, but the existing archwire is usually bent by hand or with the help of other combined tools. The archwire has a large curvature and quickly returns to a straight state, and the correction force produced is also small. Moreover, since both ends of the archwire must be bent, manual bending cannot achieve complete consistency, which affects the correction effect and wearing comfort. Utility Model Content

[0004] The utility model aims to provide an orthodontic pliers, which can ensure the consistency of the bending angle of the arch wire and enable the arch wire to exert the maximum correction force on the deformed teeth.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The utility model provides an orthodontic pliers, comprising a first pliers body, a second pliers body and a pin shaft, wherein the first pliers body and the second pliers body are movably connected via the pin shaft; the first pliers body comprises a first handle at a rear portion, a first pliers arm in a middle portion and a first pliers head at a head portion; the second pliers body comprises a second handle at a rear portion, a second pliers arm in a middle portion and a second pliers head at a head portion; the first pliers arm and the second pliers arm are respectively provided with pin shaft holes corresponding to the installation of the pin shaft; the first pliers head is a triangular prism structure perpendicular to the first pliers arm; the second pliers head is a groove structure formed by two inclined surfaces, and the groove structure is perpendicular to the second pliers arm; the triangular prism of the first pliers head and the groove structure of the second pliers head are engaged with each other, and the angle between the two inclined surfaces of the groove structure is 60° to 90°.

[0007] In the above-mentioned orthodontic pliers, the included angle between the two inclined surfaces of the groove structure is 75°.

[0008] The beneficial effects of the utility model are:

[0009] Place the archwire to be bent between the triangular prism of the first pliers head and the groove of the second pliers head, apply pressure to the first handle and the second handle by tightening the grip, and the triangular prism of the first pliers head and the groove structure of the second pliers head bite each other to bend the archwire to a certain angle. The bending angle of the archwire can be adjusted according to the size of the hand grip, and the minimum angle is the angle between the two inclined surfaces of the groove structure. The smaller the bending angle of the archwire, the greater the correction it produces, and it is adjusted according to the patient's needs. The bending consistency is good and the operation is simple and convenient.

[0010] The utility model can be used to repeatedly bend the same bending point of the arch wire at different angles for several times, and the arch wire can be broken. The utility model also has the function of adjusting the length of the arch wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structural principle of the utility model;

[0012] In the figure:

[0013] 1—first pliers body; 11—first handle; 12—first pliers head; 13—first pliers arm; 2—second pliers body; 21—second handle; 22—second pliers head; 23—second pliers arm; 3—pin shaft. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] refer to Figure 1 The utility model relates to an orthodontic pliers, comprising a first pliers body (1), a second pliers body (2) and a pin shaft (3), wherein the first pliers body (1) and the second pliers body (2) are movably connected via the pin shaft (3); the first pliers body (1) comprises a first handle (11) at the rear, a first pliers arm (13) in the middle and a first pliers head (12) at the head; the second pliers body (2) comprises a second handle (21) at the rear, a second pliers arm (23) in the middle and a second pliers head (22) at the head; the first pliers arm (13) and the second pliers arm (23) are respectively provided with a pin shaft hole corresponding to the installation of the pin shaft (3); the first pliers head (12) is a triangular prism structure perpendicular to the first pliers arm (13); the second pliers head (22) is a groove structure formed by two inclined surfaces, and the groove structure is perpendicular to the second pliers arm (23); the triangular prism of the first pliers head (12) and the groove structure of the second pliers head (22) are engaged with each other, and the angle between the two inclined surfaces of the groove structure is 60° to 90°.

[0016] In this embodiment, the included angle of the two inclined surfaces of the groove structure is 75°, which is the optimal archwire bending angle.

[0017] The utility model is simple and convenient to operate. When in use, the arch wire to be bent is placed between the triangular prism of the first pliers head 12 and the groove of the second pliers head 22, and pressure is applied to the first handle 11 and the second handle 21 by a gripping action. The triangular prism of the first pliers head 12 and the groove structure of the second pliers head 22 engage with each other to bend the arch wire into a certain angle. The bending angle of the arch wire can be adjusted automatically according to the size of the hand gripping force, and the minimum angle is the angle between the two inclined surfaces of the groove structure. The smaller the bending angle of the arch wire, the greater the correction it produces, and it is adjusted specifically according to the needs of the patient. The bending consistency is good.

[0018] The utility model can be used to repeatedly bend the same bending point of the arch wire at different angles for several times, and the arch wire can be broken. The utility model also has the function of adjusting the length of the arch wire.

[0019] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An orthodontic pliers, characterized in that: The invention comprises a first clamp body (1), a second clamp body (2) and a pin shaft (3), wherein the first clamp body (1) and the second clamp body (2) are movably connected via the pin shaft (3); the first clamp body (1) comprises a first handle (11) at the rear, a first clamp arm (13) in the middle and a first clamp head (12) at the head; the second clamp body (2) comprises a second handle (21) at the rear, a second clamp arm (23) in the middle and a second clamp head (22) at the head; the first clamp arm (13) and the second clamp arm (23) are respectively provided with a pin shaft hole corresponding to the installation of the pin shaft (3); the first clamp head (12) is a triangular prism structure perpendicular to the first clamp arm (13); the second clamp head (22) is a groove structure formed by two inclined surfaces, and the groove structure is perpendicular to the second clamp arm (23); the triangular prism of the first clamp head (12) and the groove structure of the second clamp head (22) are engaged with each other, and the angle between the two inclined surfaces of the groove structure is 60° to 90°.

2. The orthodontic pliers according to claim 1, characterized in that: The included angle between the two inclined surfaces of the groove structure is 75°.

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