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

What is the best charcoal toothpaste? Finding the right toothpaste can be tricky, especially when you have a combination of things you’re looking for, whether it be teeth sensitivity or cavity ...

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 ...