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Misoka is a fluid, transparent “like water” toothbrush designed by Kosho Ueshima.

Nanotechnology toothbrush Misoka by Yume Shokunin (source)

Nano-mineral technology toothbrush Misoka by Yume Shokunin (source)

Its bristles are coated with nanosized mineral ions that, under the action of brushing, move onto the teeth, removing stains and coating the teeth. Misoka looses effectiveness after a month-use and needs to be replaced. It can be recycled with other PET waste.

Misoka has been on the Asian and Japanese markets for the past seven years with over 2 million units sold. It has now been launched in Europe.