@nobsroutines: Replying to @pat.the.dentist Your body heals a broken bone in weeks, but it can't regrow tooth enamel, ever, because enamel has no living cells. The one loophole: the surface can still take minerals back in, which is what nano hydroxyapatite does. Dentists, what are you seeing? #teeth #dentist #dentaltok #hydroxyapatite #dentistry