配合牙膏早晚刷牙能有助預防蛀牙,是眾人皆知的事情。521Please respect copyright.PENANAXteQkzR0ld521Please respect copyright.PENANAod44uyGAFE
521Please respect copyright.PENANAxXn1EuUoeM
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?521Please respect copyright.PENANAoBbpTne78h
521Please respect copyright.PENANAx81LR3sV0E
521Please respect copyright.PENANAucHCn1GE1O
(圖2)牙齒的最外層就係琺瑯質(Enamel),主要由礦物質hydroxyapatite組成。521Please respect copyright.PENANAC56aayjZDz521Please respect copyright.PENANAHd15MtDcmk
521Please respect copyright.PENANAxDpbBU87Ny
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。521Please respect copyright.PENANAjW34lgk5sp
521Please respect copyright.PENANAEkM6TGbZdP
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。521Please respect copyright.PENANAgWLAAQ2BZE
521Please respect copyright.PENANAXTQd8VO60S
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。521Please respect copyright.PENANAYNMMZbKLOP
521Please respect copyright.PENANAVoowxDgQxs
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。521Please respect copyright.PENANAtyUv1N3uuS
521Please respect copyright.PENANA0ZBNNfVrvb
(圖3)只不過,氟化物牙膏並不是萬能的,原因可從圖中得知。521Please respect copyright.PENANAUhtfd1SRCI521Please respect copyright.PENANAyHfwbO43Bc
521Please respect copyright.PENANAXFPDLV37uT
521Please respect copyright.PENANAMZSWJo7nGW
521Please respect copyright.PENANAkEL3bn03nv
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。521Please respect copyright.PENANA6CB76kQrlm
521Please respect copyright.PENANAnF5acXiZ6W
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/toc521Please respect copyright.PENANAnKQ8qQmUA7
521Please respect copyright.PENANANRyDabHOCj
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。521Please respect copyright.PENANA3P5T5GoJfr
521Please respect copyright.PENANAlv1gcmyoFU
Link:521Please respect copyright.PENANAtQiVseMXI4
https://www.penana.com/user/27349/%E8%96%AF%E4%BB%94%E8%81%9E%E8%8C%B1%E8%8E%89/portfolio521Please respect copyright.PENANAKBSNbBjsas
521Please respect copyright.PENANAfeO8SY1dt5
521Please respect copyright.PENANAQxaUUdyh3t
有興趣接收科學資訊的話,歡迎follow IG: potatopigtongue。521Please respect copyright.PENANA5HItOAifpI