美國的白齒劑主要是含有 Carbamide Peroxide (過氧化尿素）或雙氧水，文獻裏顯示二者的效果基本相同

來源: 禦用文人於 2014-04-06 17:42:42 [舊帖] [給我悄悄話] 本文已被閱讀：次

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