the first tooth brush recorded may originate in China
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送交者: asimpleday 于 2006-11-20, 18:31:56:
回答: 中医几千年连个牙刷这么简单的玩艺都没有发明还谈什么自己强调预防疾病? 由 HunHunSheng 于 2006-11-20, 17:09:12:
Many sources I looked up online and once mentioned in Science channel "How it is made" mentioned the first bristle tooth brush similiar to today's tooth brush originated in China aroung 1500 to 1600.
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