Mr. Weixia Wang Profile

Weixia Wang

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Proceedings Article | 19 November 2021 Paper

Development of an orthodontic mechanics test platform based on a six-axial force/moment sensor

Chengliang Pan, Xiaoyuan Zhang, Jing Yin, Weixia Wang

Proceedings Volume 12059, 1205924 (2021) https://doi.org/10.1117/12.2617322

KEYWORDS: Sensors, Teeth, Calibration, Mechanics, Sensor calibration, Data processing, Mechanical engineering, MATLAB, Human-machine interfaces, Analog electronics

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The treatment force and moment on the teeth play an important role in orthodontics. However, there are many difficulties to investigate the biomechanical mechanism of tooth movement in vivo. Orthodontic simulation system becomes an acceptable method to reproduce the orthodontic process and measure the mechanical parameters. In this study, an orthodontic mechanics test platform based on a six-axial force/moment sensor is developed to provide a quantitative evaluation of orthodontic forces and moments exerted by the invisible braces. First, the mechanical design and working principle of the test platform are explained. Then, the hardware design and data processing of the six-axial force/moment sensor are illuminated. The calibration of the sensor is described. Finally, the maxillary model of a central incisor with specific displacement are tested and discussed. The experimental results show that the proposed test platform can simulate the position change of the concerned tooth and reflect the magnitude change of their mechanical parameters during the orthodontic treatment. This study provides an effective technical solution for the investigation of the biomechanical mechanism of tooth movement during the orthodontic process.

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