對牙齒有什麼益處?
回答 (2)
2007-09-11 2:14 am
✔ 最佳答案
does that space means flouride??it can kill the micro-organism in our mouth cavity and prevent them release acid to destroy the calcium-rich structure of our teeth
2007-09-10 9:11 pm
少吃糖分及臨睡前擦牙對防止蛀牙很有益處!
收錄日期: 2021-04-13 13:24:27
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