An archwire torque angle measuring device
By combining a protractor dial and a clamp holder, the problem of accurately judging the arc wire torque angle is solved, enabling more accurate arc wire force application, more refined correction results, and a shorter treatment cycle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU RITON BIOMATERIAL
- Filing Date
- 2025-06-04
- Publication Date
- 2026-06-02
AI Technical Summary
In existing technologies, doctors cannot accurately judge the torque angle when bending the square wire bow, resulting in inaccurate force expression, which affects the orthodontic effect and prolongs the treatment cycle.
Design a bow wire torque angle measuring device including a angular scale, a clamping base, and a connecting base. The device accurately determines the torque angle by reading the angle difference between the two ends of the bow wire through the scale, providing precise bending guidance.
It enables precise measurement of the archwire torque angle, reduces manual bending errors, improves the accuracy of force application and treatment effect, and shortens the treatment cycle.
Smart Images

Figure CN224307443U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthodontics, specifically to an archwire torque angle measuring device. Background Technology
[0002] For fixed orthodontic treatment using edgewise archwires, their strong corrective force and fine adjustment capabilities are more advantageous in handling complex cases. However, edgewise archwires require the dentist to bend three different sequences of curves on the archwire. These three sequences of curves are designed according to the needs of teeth moving in different directions. They are customized according to each patient's orthodontic needs. Through the elasticity of the archwire itself, the corrective force is released onto the teeth to achieve proper alignment.
[0003] The third sequence bending involves applying torque to the square archwire, thereby generating torque force on the archwire. This torque force primarily controls the root movement of the orthodontic tooth, causing the tooth root to move labially or lingually. In cases involving extraction, it also helps maintain parallel movement of the tooth.
[0004] In orthodontic clinical practice, when doctors discover torque misalignment on individual teeth during follow-up visits, they often need to bend the archwire to adjust the torque and correct the affected tooth. (See also...) Figures 1-2 In this field, a pair of torque bending pliers 2 are generally used to apply torque to the bowwire 1. When using torque bending pliers 2, the bending angle of the bowwire 2 can only be estimated by the physician’s experience, and it is not possible to accurately judge the bending angle, which can easily lead to large errors and affect the expression of force applied by the bowwire 1. Therefore, in actual clinical practice, the torque often needs to be adjusted repeatedly, resulting in a prolonged treatment cycle and inaccurate expression of force. Utility Model Content
[0005] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a bowwire torque angle measuring device, which can solve the problem of inaccurate force expression caused by the inability to accurately judge the magnitude of the torque angle when bending bowwire.
[0006] This utility model is achieved through the following technical solution:
[0007] A bowwire torque angle measuring device includes: a protractor scale with engraved planar angle values; a clamp base with a vertical bowwire receiving groove on its surface, one end of which abuts against the origin of the protractor scale and intersects the plane of the protractor scale perpendicularly; and a connecting base fixedly disposed at the bottom of the protractor scale. One side of the clamp base abuts against the connecting base so that the extension direction of the bowwire receiving groove is directly opposite the origin of the protractor scale.
[0008] Furthermore, the clamp seat is also recessed to accommodate the bow wire cutters: a bow wire cutter receiving groove; the bow wire receiving groove is connected to the bow wire cutter receiving groove at the other end opposite to the protractor scale; the extending direction of the bow wire cutter receiving groove is perpendicular to the extending direction of the bow wire receiving groove.
[0009] Furthermore, the bowwire torque angle measuring device also includes: bowwire pliers; the bowwire pliers are used to hold the bowwire and are adapted to be placed in the bowwire pliers receiving groove of the clamp seat.
[0010] Furthermore, the protractor dial is engraved with angle values ranging from 0° to 180°.
[0011] Furthermore, both ends of the bow wire cutter receiving slot are through ends, so that the bow wire cutter can be selectively placed into the bow wire cutter receiving slot from either side.
[0012] Furthermore, the scale values include a first scale value and a second scale value arranged circumferentially along the origin; both the first scale value and the second scale value include an angle value of 0° to 180°; the angle values of the first scale value and the second scale value extend in opposite directions.
[0013] Furthermore, the protractor scale is fan-shaped, the connecting base is rectangular, and the clamp seat is also rectangular; the bottom surface of the connecting base and the bottom surface of the clamp seat are on the same horizontal plane.
[0014] Furthermore, the bow wire cutters are: square wire cutters.
[0015] Compared with existing technologies, the beneficial effects that this utility model can achieve are as follows:
[0016] When using the bowwire, clamp the bowwire with bowwire pliers and place the curved section of the bowwire into the bowwire receiving groove of the clamp holder. Specifically, with the bowwire pliers clamping the bowwire at the midpoint of the curved section, place the front half of the curved section into the bowwire receiving groove, while the rear half of the curved section extends out of the groove. After fixing the bowwire, read the angle directly in front of the protractor scale. By reading the difference in angle between the two ends of the bowwire on the protractor scale, the magnitude of the torque angle on the bowwire can be accurately determined.
[0017] In this way, after the physician bends the archwire to the appropriate torque, the archwire is placed on the device to take a reading of the torque angle. The reading determines whether the archwire torque is within the preset range. If the deviation is significant, the physician can bend the archwire again based on the reading, thus finely adjusting the torque angle until it meets the requirements. Therefore, using this device allows for the accurate bending of the archwire to a precise torque angle, avoiding the impact of manual bending errors on the effective force application, resulting in more accurate force application, more refined treatment results, and a shorter treatment cycle. Attached Figure Description
[0018] Figure 1 The diagram shown is a schematic of a pair of torque bending clamps in the prior art;
[0019] Figure 2 The diagram shown is a schematic representation of the state of a torque bending pliers bending a bowwire in the prior art.
[0020] Figure 3 The diagram shown is a schematic of the bowwire torque angle measuring device.
[0021] Figure 4 The image shown is a front view of the bowwire torque angle measuring device;
[0022] Figure 5 The image shown is a side view of the bowwire torque angle measuring device.
[0023] Figure 6 The diagram shows the connection between the bow wire cutters and the bow wire torque angle measuring device.
[0024] Figure 7 The diagram shows the usage state of measuring torque angle using this utility model.
[0025] In the diagram: 10, protractor scale; 11, first scale value; 12, second scale value; 20, clamp base; 21, bow wire receiving groove; 22, bow wire pliers receiving groove; 30, connecting base; 40, bow wire pliers; 50, bow wire. Detailed Implementation
[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.
[0027] In the description of this utility model, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0028] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] This utility model discloses a bowwire torque angle measuring device, which is used to measure the magnitude of the torque angle bent on the bowwire 50.
[0031] See Figures 3-5 This bowwire torque angle measuring device includes: a protractor scale 10, a clamp base 20, and a connecting base 30. The protractor scale 10 has planar angle graduations on its surface. The clamp base 20 has a vertical bowwire receiving groove 21 on its surface, the width of which matches the diameter of the bowwire 50, allowing the bowwire 50 to be inserted into the groove. One end of the bowwire receiving groove 21 rests against the origin of the protractor scale 10, and the extension direction of the groove 21 intersects the plane of the protractor scale 10 perpendicularly. The connecting base 30 is fixed to the bottom of the protractor scale 10, and one side of the clamp base 20 abuts against the connecting base 30, ensuring that the extension direction of the bowwire receiving groove 21 is aligned with the origin of the protractor scale 10.
[0032] The working principle of this utility model is as follows:
[0033] See Figure 5 In use, the bowwire 50 is held in place by the bowwire pliers 40, and the curved structure of the bowwire 50 is placed into the bowwire receiving groove 21 of the clamp seat 20. Specifically, the bowwire pliers 40 holds the bowwire 50 at the midpoint of the curved structure, and the front half of the curved structure is placed into the bowwire receiving groove 21, while the rear half of the curved structure extends out of the bowwire receiving groove 21. After the bowwire 50 is fixed, the reading is taken along the direction directly facing the protractor scale 10. By reading the difference in angles between the two ends of the bowwire 50 on the protractor scale 10, the magnitude of the torque angle on the bowwire 50 can be accurately determined.
[0034] Thus, after the physician bends the archwire 50 to the appropriate torque, they place the archwire 50 on the device to read the torque angle. The reading determines whether the torque of the archwire 50 is within the preset range. If the deviation is significant, the physician can bend the archwire a second time based on the reading, thereby finely adjusting the torque angle until it meets the requirements. Therefore, using this device allows for the accurate bending of the torque angle on the archwire 50, avoiding the impact of manual bending errors on the force application effect of the archwire 50. This results in more accurate force application, more refined treatment effects, and a shorter treatment cycle.
[0035] Since the bowwire pliers 40 are in a perpendicular position to the bowwire 50 when clamping it, to avoid interference between the bowwire pliers 40 and the clamp seat 20, preferably, refer to... Figure 4 The fixture base 20 is further recessed with a wire cutter receiving groove 22 for accommodating the wire cutters 40. The wire receiving groove 21, at its end opposite to the protractor scale 10, connects to the wire cutter receiving groove 22, and the extending direction of the wire cutter receiving groove 22 is perpendicular to the extending direction of the wire receiving groove 21. Thus, during measurement, the wire cutters 40 can be placed into the groove, and the wire cutters 40 can also be rotated to adjust the position of the bowwire 50 without interfering with the fixture base 20.
[0036] Preferably, see Figure 4 and Figure 5 This utility model may also include a bowwire pliers 40 used in conjunction with the measuring part. The bowwire pliers 40 is used to hold the bowwire 50 and is adapted to be placed in the bowwire pliers receiving slot 22 of the clamp seat 20. Specifically, the bowwire pliers 40 may be square wire pliers or other conventional orthodontic bending bowwire pliers 40.
[0037] Since the torque angle is within 180°, the angle scale 10 is marked with angle values from 0° to 180°.
[0038] Preferably, both ends of the bow wire cutter receiving slot 22 are through ends, so that the bow wire cutter 40 can be inserted from either side, specifically from the left or right side, to suit different dominant hands, thus making the device more convenient to use. Inserting the bow wire cutter 40 from different directions will not affect the reading of the bow wire 50 torque angle.
[0039] To facilitate readings of the bowwire 50 from either side, the angle dial 10 includes two scale values: a first scale value 11 and a second scale value 12, arranged along the circumference of the origin. Both the first scale value 11 and the second scale value 12 include angle values from 0° to 180°, and the two scale values extend in opposite directions, allowing the torque angle of the bowwire 50 to be read from either left to right or right to left, making it more convenient to use.
[0040] Specifically, the protractor dial 10 has a fan-shaped structure, the connecting base 30 has a rectangular structure, and the clamp seat 20 also has a rectangular structure. The bottom surface of the connecting base 30 and the bottom surface of the clamp seat 20 are on the same horizontal plane, and because the connecting base 30 and the clamp seat 20 are perpendicular to each other, the entire device can be stably placed on a horizontal plane, thereby ensuring stable readings.
[0041] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.
Claims
1. An archwire torque angle measuring device, characterized by, The utility model relates to a kind of archwire torque angle measuring devices, including: An angle scale is engraved with plane angle scale values; A clamp seat, the surface of the clamp seat is provided with vertical archwire accommodating grooves, one end of the archwire accommodating grooves abuts on the origin of the angle scale, and the archwire accommodating grooves intersect perpendicularly on the plane of the angle scale; A connecting base is fixedly arranged at the bottom of the angle scale, and one side of the clamp seat abuts on the connecting base, so that the extension direction of the archwire accommodating grooves is perpendicular to the origin of the angle scale.
2. The wire torsion angle measuring device of claim 1 wherein, The clamp seat is also recessed with an archwire forceps accommodating groove for accommodating archwire forceps, and the other end of the archwire accommodating grooves is communicated with the archwire forceps accommodating groove, and the extension direction of the archwire forceps accommodating groove is perpendicular to the extension direction of the archwire accommodating grooves.
3. The wire torsion angle measuring device of claim 1 wherein, The archwire torque angle measuring device further includes archwire forceps for clamping archwires and adapted to be placed in the archwire forceps accommodating groove of the clamp seat.
4. The wire torsion angle measuring device of claim 1 wherein, The angle scale is engraved with angle values from 0° to 180°.
5. The wire torsion angle measuring device of claim 2 wherein, Both ends of the archwire forceps accommodating groove are through ends, so that the archwire forceps are placed in the archwire forceps accommodating groove from one side direction.
6. The wire torsion angle measuring device of claim 4 wherein, The scale values include first scale values and second scale values arranged circumferentially around the origin, and the first scale values and the second scale values both include angle values from 0° to 180°, and the angle value extension directions of the first scale values and the second scale values are opposite.
7. The wire torsion angle measuring device of claim 1 wherein, The angle scale is a fan-shaped structure, the connecting base is a rectangular structure, and the clamp seat is also a rectangular structure, and the bottom surface of the connecting base and the bottom surface of the clamp seat are on the same horizontal plane.
8. The wire torsion angle measuring device of claim 3 wherein, The archwire forceps are square wire forceps.