Fluoride: The ADA and the AAPD, as well as all the dentists I spoke to, recommend choosing a kids toothpaste with fluoride, a cavity-fighting ingredient that strengthens enamel. All ADA-approved ...

"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're thinking about trying a nano-hydroxyapatite toothpaste but aren't sure if it's right for you, we spoke to dentists to ...