Bracket and archwire friction measuring device for orthodontics

Abstract

The utility model discloses a kind of bracket and arch wire friction force measuring devices for orthodontics, belong to the technical field of orthodontics, its technical scheme main point is, including being installed on universal testing machine, including tensioning member and fixed part, the arch wire is provided on the tensioning member, the arch wire is contacted with the fixed part, the tensioning member and fixed part are connected with the universal testing machine, the tensioning member includes U-shaped frame, the U-shaped frame is connected with the universal testing machine, one end of the side surface of U-shaped frame is connected with first connecting column, and the other end is connected with second connecting column by bolt, the first connecting column and the second connecting column are all provided with cavity, the arch wire is placed in two cavities, fixed bolt rod is screwed on the first connecting column and the second connecting column. This kind of device simple structure is convenient to operate, and production cost is low, and experimental difficulty is small, improves the measuring efficiency.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, specifically to a device for measuring the friction force between brackets and archwires in orthodontics. Background Technology

[0002] In orthodontic treatment, teeth need to be moved in a planned manner for effective correction. During the correction process, as the teeth move, the brackets and archwires attached to the teeth slide relative to each other. In order to ensure the efficiency and effectiveness of tooth movement, doctors will use different methods, such as applying a lubricating coating to the archwire or brackets to reduce the friction between the archwire and brackets when they slide relative to each other. The effectiveness of each method of reducing friction needs to be judged by measuring the friction between the archwire and brackets in various clinical scenarios.

[0003] Existing devices for measuring the friction between archwires and brackets are complex in structure, inconvenient to measure, and require special manufacturing by external machining plants and the use of additional mechanical sensor devices, which are costly. Most laboratories do not have the necessary conditions, which increases the difficulty of conducting experiments. In view of this, a device for measuring the friction between brackets and archwires in orthodontics is proposed. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a device for measuring the friction force between brackets and archwires in orthodontics. It has a simple structure, is easy to operate, has low manufacturing cost, is easy to experiment with, and improves measurement efficiency.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a device for measuring the friction force between brackets and archwires in orthodontics, installed on a universal testing machine, including a tensioning component and a fixing component, wherein an archwire is provided on the tensioning component, the archwire is in contact with the fixing component, and both the tensioning component and the fixing component are connected to the universal testing machine.

[0006] The tensioning component includes a U-shaped frame, which is connected to the universal testing machine. One end of the side of the U-shaped frame is connected to a first connecting column, and the other end is connected to a second connecting column by bolts. Both the first and second connecting columns have cavities, and a bow wire is placed in each of the two cavities. Fixing bolts are screwed onto the first and second connecting columns, and the two fixing bolts fix the bow wire.

[0007] The fastener includes a mounting bracket, on which a fixing block is threadedly connected. A U-shaped plate is fixed on the fixing block, and a space is provided between the U-shaped plate and the fixing block. A groove is slidably connected to the middle of the U-shaped plate. The mounting bracket is connected to the universal testing machine.

[0008] In some embodiments, a first connecting frame is bolted to the U-shaped frame, and a second connecting frame is bolted to the mounting frame. The first connecting frame is connected to the upper clamp of the universal testing machine, and the second connecting frame is connected to the lower clamp of the universal testing machine.

[0009] In some embodiments, a nut is threaded onto the end of the first connecting post.

[0010] In some embodiments, the end of the U-shaped plate is connected to the fixing block by bolts.

[0011] In some embodiments, artificial saliva is applied to the tray.

[0012] In summary, this utility model has the following beneficial effects:

[0013] This invention includes a tensioning component and a fixing component, which are respectively installed on the upper and lower clamps of a universal testing machine. It utilizes the universal testing machine to test friction. The design not only facilitates the replacement of different bowwires by using the cooperation of the first and second connecting columns with the fixing bolt rod, thus measuring the friction between different bowwires and the bracket, but also simulates the bowwire torque by rotating the fixing block and the mounting frame, thereby measuring the friction between the bowwire and the bracket under different torques. The operation is simple, the measurement is convenient and accurate, improving measurement efficiency. Furthermore, the device has low manufacturing cost and is easy to use for experiments. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the tensioning component of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall structure of the fastener of this utility model.

[0017] In the diagram: 1. First connecting frame; 2. Second connecting frame; 3. Tensioning component; 31. U-shaped frame; 32. First connecting column; 33. Second connecting column; 34. Fixing bolt rod; 35. Nut; 4. Bow wire; 5. Fixing component; 51. Mounting frame; 52. Fixing block; 53. U-shaped plate; 54. Support groove. Detailed Implementation

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0021] See Figure 1-3 A device for measuring the friction force between brackets and archwires in orthodontics is installed on a universal testing machine. It includes a tensioning element 3 and a fixing element 5. An archwire 4 is provided on the tensioning element 3 and contacts the fixing element 5. Both the tensioning element 3 and the fixing element 5 are connected to the universal testing machine.

[0022] The tensioning component 3 includes a U-shaped frame 31, which is connected to the universal testing machine. One end of the side of the U-shaped frame 31 is connected to a first connecting post 32, and the other end is connected to a second connecting post 33 by bolts. Both the first connecting post 32 and the second connecting post 33 have cavities, and the bow wire 4 is placed in the two cavities. Fixing bolt rods 34 are screwed onto the first connecting post 32 and the second connecting post 33, and the two fixing bolt rods 34 fix the bow wire 4.

[0023] The fastener 5 includes a mounting bracket 51, a fixing block 52 is threaded onto the mounting bracket 51, a U-shaped plate 53 is fixed onto the fixing block 52, a space is provided between the U-shaped plate 53 and the fixing block 52, a groove 54 is slidably connected to the middle of the U-shaped plate 53, and the mounting bracket 51 is connected to the universal testing machine.

[0024] Using the above technical solution, the tensioning component 3 and the fixing component 5 are respectively installed on the upper and lower clamps of the universal testing machine. Through the mounting bracket 51 and the fixing block 52, the position of the bracket 54 and the lower clamp of the universal testing machine is kept stable. This ensures that when the bracket 54 and the archwire 4 slide relative to each other due to being pulled by the upper and lower clamps of the universal testing machine, the movement paths of the bracket 54 and the archwire 4 remain parallel and they are always in contact without separation, ensuring measurement accuracy. The fixing block 52 can also be slightly rotated to simulate the frictional force caused by different axial tilt angles due to tooth tilt in clinical practice. By adjusting the angle between the archwire 4 and the bracket 54 during fixing, the torque applied to the archwire 4 in clinical practice can be simulated to measure the frictional force between the archwire 4 and the bracket 54 under different torques. Furthermore, different types of archwires 4 can be replaced by fixing bolt rod 34 to measure the frictional force between different archwires 4 and the bracket 54. Replacement is very convenient and improves operating efficiency. At the same time, the entire device can be manufactured by 3D printing, saving costs and reducing the difficulty of experimental setup.

[0025] In some embodiments, the bracket 54 and the archwire 4 can be connected together by means of ligature wires or rubber bands, just as in clinical practice, to perform simulated measurements.

[0026] In some embodiments, a first connecting frame 1 is bolted to the U-shaped frame 31, and a second connecting frame 2 is bolted to the mounting frame 51. The first connecting frame 1 is connected to the upper clamp of the universal testing machine, and the second connecting frame 2 is connected to the lower clamp of the universal testing machine. Operators can use the first connecting frame 1 and the second connecting frame 2 to connect to the upper and lower clamps of the universal testing machine respectively, thereby installing the device on the universal testing machine. Friction force can then be measured using the universal testing machine. The operation is simple and convenient. The connection between the first connecting frame 1 and the second connecting frame 2 and the universal testing machine can be designed by those skilled in the art according to the needs of the upper and lower clamps of the universal testing machine to ensure connection with this device; therefore, further details are omitted here.

[0027] In some embodiments, a nut 35 is threaded onto the end of the first connecting post 32. An operator can rotate the nut 35 to move the first connecting post 32 up or down under the constraint of the U-shaped frame 31, thereby tightening or loosening the bowwire 4 via the fixing bolt rod 34, thus adjusting the tension of the bowwire 4.

[0028] In some embodiments, the end of the U-shaped plate 53 is connected to the fixing block 52 by bolts. The operator can control the degree of bending of the end of the U-shaped plate 53 by tightening the bolts, thereby using the bending of the end of the U-shaped plate 53 to restrict and fix the bracket 54. The operator can also replace different brackets 54 to measure the friction between different brackets 54 and the archwire 4.

[0029] In some embodiments, artificial saliva is applied to the bracket 54. This simulates the intraoral environment and facilitates the testing of the friction between the bracket 54 and the archwire 4 under dry and moist conditions.

[0030] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An orthodontic bracket and archwire friction measuring device, mounted on a universal testing machine, characterized in that: It includes a tensioning element (3) and a fixing element (5). The tensioning element (3) is provided with a bow wire (4). The bow wire (4) is in contact with the fixing element (5). Both the tensioning element (3) and the fixing element (5) are connected to the universal testing machine. The tensioning component (3) includes a U-shaped frame (31), which is connected to the universal testing machine. One end of the side of the U-shaped frame (31) is connected to a first connecting column (32), and the other end is connected to a second connecting column (33) by bolts. Both the first connecting column (32) and the second connecting column (33) have cavities, and the two cavities contain bow wires (4). Fixing bolt rods (34) are screwed onto the first connecting column (32) and the second connecting column (33), and the two fixing bolt rods (34) fix the bow wires (4). The fastener (5) includes a mounting bracket (51), on which a fixing block (52) is threadedly connected, and a U-shaped plate (53) is fixed on the fixing block (52). A space is provided between the U-shaped plate (53) and the fixing block (52). A bracket (54) is slidably connected in the middle of the U-shaped plate (53). The mounting bracket (51) is connected to the universal testing machine.

2. The bracket-archwire friction measuring device for orthodontics of claim 1, wherein: The U-shaped frame (31) is bolted to a first connecting frame (1), and the mounting frame (51) is bolted to a second connecting frame (2). The first connecting frame (1) is connected to the upper clamp of the universal testing machine, and the second connecting frame (2) is connected to the lower clamp of the universal testing machine.

3. The bracket-archwire friction measuring device for orthodontics of claim 1, wherein: The end of the first connecting post (32) is screwed with a nut (35).

4. The bracket-archwire friction measuring device for orthodontics of claim 1, wherein: The end of the U-shaped plate (53) is connected to the fixing block (52) by bolts.

5. The bracket-archwire friction measuring device for orthodontic use according to claim 1, wherein: Artificial saliva was dripped onto the tray (54).

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