Orthodontic Force and Moment Sensing Device: Influence of Deflection of Wire and Tooth’s Orientation
Orthodontic Force and Moment Sensing Device: Influence of Deflection of Wire and Tooth’s Orientation
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DOI：
10.1109/smc.2019.8914173
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发表时间：
2019-10
期刊：
影响因子：
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通讯作者：
Kunio Shimoda;Satoki Tsuichihara;H. Takemura;K. Soga;K. Suga;Wei-Jen Lai;Sunmin Kim;Z. Kanno;M. Uo
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文献类型：
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作者：
Kunio Shimoda;Satoki Tsuichihara;H. Takemura;K. Soga;K. Suga;Wei-Jen Lai;Sunmin Kim;Z. Kanno;M. Uo
本研究的目的是定量评估牙齿绕两个不同轴线旋转时的正畸治疗力和力矩。在治疗过程中，很少有对牙齿施加的力和力矩的定量测量。因此，即使牙医以相同的方式安装正畸器械，牙齿的移动也会因牙医的治疗技巧而有所不同。正畸治疗力和力矩的测量是非常重要的，很少有仪器能测量到力和力矩。我们研制了力和力矩传感装置。该装置利用真实正畸器械对假牙模型进行了三维力和三轴力矩的测量。当固定在牙齿上的托槽绕两个不同的轴旋转-20到20度时，施加在牙齿上的力矩被测量出来。对于不同轴上的每个角度，理论上两个力矩应该是相同的值。然而，测量结果表明，每个轴的力矩是不同的。应用于牙齿的力矩根据牙齿旋转的方向而有所不同。实验结果表明，牙科医生需要考虑细节：旋转和位置的微小差异，以及金属丝附着体的技巧。
The purpose of this study is quantitative evaluation of orthodontic treatment force and moment when rotating teeth around two different axes. There is few quantitative measurements of force and moment applied to teeth during treatment. Therefore, even though the dentist performs the same way of attachment of orthodontic instrument, the movement of the teeth differ based on the dentist’s treatment skill. The measurement of the orthodontic treatment force and moment is quit important, few devices can measure the force and moment. We have developed the force and moment sensing device. The device measured 3-axis forces and 3-axis moments applied to pseudo teeth model with real orthodontic instrument. The moment applied to the tooth when the bracket attached to the tooth was rotated -20 to 20 degrees around two different axes was measured. Two moments should theoretically be the same value for each angle in different axes. However, the results of measurement demonstrate that moment is different for each axis. The moment applied to the teeth varies depending on the direction of tooth rotation. The experimental results suggest that the dentist needs to consider details: the small difference of the rotation and position, and wire attachment skill.