Oral hygiene system with visual recognition for compliance monitoring

Abstract

Tooth brushing monitoring system is disclosed that includes an oral hygiene device with a separate an optical sensor to track positional changes of the oral hygiene device. The optical sensor may alone or in combination with motion sensor data determine position and orientation of an oral hygiene device with respect to a user's mouth. The system may then determine the quality, quantity and location of brushing and provide feedback on the quality of brushing. This feedback provides motivation for users to increase their brushing habits, leading to a decrease in plaque, tooth decay and gingivitis.

1 . An oral hygiene system for monitoring compliance with an oral hygiene regimen comprising:
 an oral hygiene device comprising a handle and a head;   an optical sensor; and   a control system which determines a position of the oral hygiene device based on at least the data output by the optical sensor.   
     
     
         2 - 49 . (canceled)