3 ms·
You can buy several varieties of hydroxyapatite toothpaste on Amazon now. Before 2021 or so it was a bit of a pain - a couple Japanese and Singaporean brands wi
by analyte123 2y ago
You can buy several varieties of hydroxyapatite toothpaste on Amazon now. Before 2021 or so it was a bit of a pain - a couple Japanese and Singaporean brands with spotty availability.
Edit: as alluded to by sibling comment, there are confusing claims about the exact size and structure of the hydroxyapatite ingredient used. Several brands claim that their particles (?) are smaller than those used by Novamin or by other brands and therefore more effective.
The concept of remineralizing the surface of existing teeth is totally different than what this article is talking about, though.
- skulk 2y agoour saliva already contains hydroxyapatite. What's the reasoning behind including it in a toothpaste? Saliva doesn't contain enough?
- kergonath 2y agoOur teeth enamel is in chemical interaction with our saliva. Lower pH favour the dissolution of the apatite (attacking the teeth), and higher pH favour its precipitation (growing enamel). So it’s true that the components are in our saliva as well, in itself it is not enough to make it grow. These toothpastes change this by providing lots of the building blocks of apatite, saturating the saliva and promoting growth, but also by increasing the pH. It tends to decrease after a meal (or particularly after drinking sugary drinks, which tend to be awfully acidic), which is why it’s useful to have the toothpaste stabilising it.
- financltravsty 2y agoNot with a modern lifestyle, no.