Tooth brush

Details Tooth brush Tooth brush

A - Human Necessities

46

B

A46B 15/00 (2006.01)

Patent

CA 2114707

This is an invention of a dental brush characterized by comprising a dispersed thermochromic material in its head and/or bristles, in such a manner that a change in coloration of these elements occurs in a time which the user associates to the minimum adequate time for a good brushing.

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