[–] 20404576? 0 points 1 point 1 point (+1|-0) ago
To test their clusters, the team used crystalline hydroxyapatite
The Japanese have had a toothpaste with that for a while. I ordered some a while ago and it does appear to work and very rapidly. Some of my teeth are in bad shape, and I get cold sensitivity, but ever since I started using it the sensitivity goes away within a day or two. It's expensive ($40), but worth it.
[–] 20403445? ago
Got to the end of the article and read "support the Guardian" and said to myself, "WTF??!?"