配合牙膏早晚刷牙能有助預防蛀牙,是眾人皆知的事情。512Please respect copyright.PENANALAYZTfYzVJ512Please respect copyright.PENANAGUWuPtGvHB
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但你又知唔知為何牙膏普遍會含有氟化物(Fluroide)? 其用意究竟何在呢?512Please respect copyright.PENANAK5UdUq0mPP
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(圖2)牙齒的最外層就係琺瑯質(Enamel),主要由礦物質hydroxyapatite組成。512Please respect copyright.PENANALxGg6ScLhu512Please respect copyright.PENANA0c8d2xQtIO
512Please respect copyright.PENANA3sj9VmDYIJ
口腔內的細菌,會從我們進食的食物中攝取糖份,並消化為乳酸,間接導致口水的pH值下降。512Please respect copyright.PENANAXyWknyhRam
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當口水pH值低至5.5以下的時候,琺瑯質裡頭的礦物質便會開始被分解,而口腔細菌就會乘虛而入,造成蛀牙。512Please respect copyright.PENANAs4Y9hPriJu
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而牙膏的氟化物能有助抑壓這個酸性分解作用,同時當pH回復正常的時候,氟化物亦能幫忙建構所失去的礦物質。512Please respect copyright.PENANAmKJwqEAWoX
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氟化物還有各種不同的機制預防蛀牙,這裡只列出其中的一項。512Please respect copyright.PENANAkZ3SJtLI7j
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(圖3)只不過,氟化物牙膏並不是萬能的,原因可從圖中得知。512Please respect copyright.PENANApRdPftflPr512Please respect copyright.PENANAFej2VdAsYd
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如果想我快啲出文的話,請入去Penana網站科普專欄–薯不揀單俾一個like以及Bookmark,這對我非常之重要。512Please respect copyright.PENANAT8c3PGiLek
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Link: https://www.penana.com/story/66244/%E7%A7%91%E6%99%AE%E5%B0%88%E6%AC%84-%E8%96%AF%E4%B8%8D%E6%8F%80%E5%96%AE/toc512Please respect copyright.PENANAVS1q62vvb0
512Please respect copyright.PENANA5RYsuwZSVn
同時亦可以在Penana網站裡按「買一嚿/半嚿薯仔」,以課金的方式推動我繼續搜羅資料寫文,多謝。512Please respect copyright.PENANAjOtbdqz342
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Link:512Please respect copyright.PENANAQAmOdIKGd7
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio512Please respect copyright.PENANA0hK8FGYoTf
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有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。512Please respect copyright.PENANA9XMxqsn6GY
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薯仔聞茱莉

篇 #69
深入淺出–牙膏內為何會添加氟化物?
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