I actually use one of the nano-hydroxyapatite toothpastes. Got curious while in dental school. I suppose I am still not 100% sure what I think about it, but years later I still haven’t had any cavaties and incipients I had have disappeared. Of course, since this coincides with going through dental school I probably just take hygiene a lot more seriously and technique improved, idk. But it makes sense in theory, so what the hell.
That being said, the low-foam, no taste is actually the bigger reason I still use it today. Toothpastes with a mint or whatever just do NOT taste clean to me anymore! And I can’t go back. So I buy the expensive toothpaste on Amazon, lol.
Funny side effect: gag reflex is slightly exaggerated. Not in any truly debilitating way, but it’s noticeable.