Tooth-paste with brushing time indicator

Details Tooth-paste with brushing time indicator Tooth-paste with brushing time indicator

A - Human Necessities

61

K

167/318.1

A61K 7/18 (1990.01)

Patent

CA 1332154

ABSTRACT OF THE DISCLOSURE A tooth-paste comprising an addition of a coloring agent and of areducing agent for decoloring said tooth-paste under the effect of the brushing, wherein said tooth-paste is made of a fluorine-based tooth- paste, and includes methylene blue in a proportion of about 500 µl to 1 ml, in a 1 mg/ml solution, for 5 g of tooth-paste, that is a proportion of the order of 0.125 to 0.250 µM per gram of tooth-paste, and a reducing agent constituted by sodium ascorbate in powder form which is added at the moment of use.

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