It brushes teeth monitoring system, disclosing has independent optical sensor including oral hygiene device, changes oral hygiene device with tracing positional. Optical sensor can determine oral hygiene device relative in the mouth of user individually or with the position of motion sensor data and orientation. System can then determine that quality, quantity and position provide feedback, and the quality brushed teeth is brushed teeth. This is fed back to user and provides excitation to increase its tooth-brushing habit, causes to reduce dental plaque, decayed tooth and gingivitis.
