| 摘要 |
<p>A method is proposed for analysing the usage of a toothbrush made by a subject. The position of the toothbrush is monitored using a position sensor on the brush, and the position of the teeth is monitored by a position sensor mounted in a known fixed relation to the teeth. The resultant data is used to find the relative positions of the toothbrush and teeth over time. Statistical analysis of this data permits the identification of habitual brushing failures by subjects of the toothbrush. The toothbrush may transmit the output of its position sensor to a data analysis unit as a wireless signal. The toothbrush may also be provided with further sensors, such as pH and pressure sensors, the output of which is used in the statistical analysis to enrich the results.</p> |
