Patent ID: 9049920
Filing Date: 2015-06-09
Classification: A46B,A61C

Abstract:
1. A toothbrush capable of sensing the position of a bristle set portion thereof relative to teeth, comprising: a toothbrush which includes a handle portion and a brushhead portion, with a bristle set ( at least two sensors located on the handle portion approximately 180° apart such that the sensors is outside the mouth when the bristle set is in the mouth, the sensors being responsive to temperature, wherein the first sensor is oriented such that it detects the temperature of skin of the user when the bristle set is in a position adjacent one of either outside or inside surfaces of the teeth, and the second sensor detects an environmental temperature outside the mouth when the bristle set is in a position adjacent the other of the outside or inside surfaces of the teeth; a processor responsive to the temperature information from the sensor to determine whether the bristle set is positioned adjacent the outside surfaces of the teeth or the inside surfaces of the teeth; and an indicator system responsive to the processor for indicating to the user whether the bristle set is in position to brush the outside surfaces of the teeth or the inside surfaces of the teeth.