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After eating meals and before sleeping, oral hygiene is a routine. Tongues are the most directly part that being touched.
However, most of the people won't clean them.How many people notice that they have to be cleaned.
In oral care, we always concern about the product of hygiene in mouth.How can we keep it dry and clean.
A tongue scraper to put upright which will be kept dry and clean by taking advantage of tumbler principle is introduced here.
Keelung City, Taiwan