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You wonder what inside of mouth looks like. By attaching a small mirror back side of the tooth brush, you can check your teeths condition and have a good habit of brushing your teeth.
You dont have to hang your tooth brush to dry it up. The angled head of the brush does not touch the surface and can stay very hygienic. The angled body of the brush also helps you grab the brush easily.
National Taipei University of
Chiu Yen-Kai Han Ji-Sook Tang Wei-Hsiang Tsai Po-An