ELECTRIC TOOTHBRUSH

摘要

PROBLEM TO BE SOLVED: To solve the problem of an existing rotation type electric toothbrush to brush teeth by rotation of a bristle stud section that the rotation section disposed at a distal end of the toothbrush must be thick and the toothbrush is difficult to be inserted when a side surface of a molar tooth or the like is brushed.

SOLUTION: Sheaves of bristles are not planted in a central region of rotation but planted only the outside of the region on the surface side of a base which supports the sheaves of the bristles in the rotation section and a central axis which supports the base from the back side of the base is inserted as deeply as possible.

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