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

Our product picks are editor-tested, expert-approved. We may earn a commission through links on our site. Why Trust Us? This should really go without saying, but for anyone who thinks wooden teeth are ...

Add Yahoo as a preferred source to see more of our stories on Google. A close up of someone smiling. At-home teeth whitening kits or toothpastes are great for getting a whiter smile at home without ...

Toothpaste is a gel or paste that removes the sticky film of bacteria constantly formed on the teeth surfaces, known as plaque. Toothpaste is used for brushing teeth with a toothbrush and is rinsed ...