Why Do Toothpastes Claim to Regrow Enamel?
Is it illegal (or false business claim/fraud) for all the toothpastes I see to claim that they can REGROW enamel? Isn't this impossible, so far -- although I know they have made strides in this. From what I have read it's impossible to get enamel back, but so many toothpastes out there say they can do this. Also, why do all the toothpastes even from the same brand say they do various different things, but if you look at the ingredients, they are all the same! What gives?