配合牙膏早晚刷牙能有助預防蛀牙,是眾人皆知的事情。511Please respect copyright.PENANAXq8QGcCTU6511Please respect copyright.PENANAdsEOsy584I
511Please respect copyright.PENANAZ86txmVlsr
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?511Please respect copyright.PENANAdviV1K6gyi
511Please respect copyright.PENANAYSPYtoZ2ZH
511Please respect copyright.PENANAcm1OP4emdT
(圖2)牙齒的最外層就係琺瑯質(Enamel),主要由礦物質hydroxyapatite組成。511Please respect copyright.PENANARsSgATrt2X511Please respect copyright.PENANAWftbtEpaTG
511Please respect copyright.PENANA6jE2dL2xLu
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。511Please respect copyright.PENANAmid8DuT7pu
511Please respect copyright.PENANAsfBzSUnEjQ
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。511Please respect copyright.PENANA7VcgjBhcMQ
511Please respect copyright.PENANAi69575kAcx
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。511Please respect copyright.PENANACPkDXLfR0d
511Please respect copyright.PENANAwFmBjpQj7O
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。511Please respect copyright.PENANAfb8dCsV1Pg
511Please respect copyright.PENANAJDTDzVBiYE
(圖3)只不過,氟化物牙膏並不是萬能的,原因可從圖中得知。511Please respect copyright.PENANAoLMEwgcGQ6511Please respect copyright.PENANA0gwAn4ZBdK
511Please respect copyright.PENANAYv9tXmMCZ2
511Please respect copyright.PENANApxtiNC9uhw
511Please respect copyright.PENANAs1heUlDLqM
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。511Please respect copyright.PENANA6ijAvbT8Dw
511Please respect copyright.PENANA571ouqzr5i
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/toc511Please respect copyright.PENANAg6ODdpucFp
511Please respect copyright.PENANAoKO9o2nyDN
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。511Please respect copyright.PENANAnJqoAUqjqX
511Please respect copyright.PENANAtzgV5ub4am
Link:511Please respect copyright.PENANAHTILIxz9GI
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio511Please respect copyright.PENANAG5raBMBlvT
511Please respect copyright.PENANAjPFsIilvn9
511Please respect copyright.PENANA9mNatqK17X
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。511Please respect copyright.PENANAlGdAQnqvVK