Mamelons are the small bumps on your four front teeth called incisors. They usually appear as a group of three and wear down as you age. Mamelons don't need any special treatment. They give your teeth ...

Many of the body's biggest flaws are the result of evolution building on old designs instead of starting over. Our spine, ...

Craze lines are small vertical cracks in the enamel of your teeth. They aren’t painful, but they can be unsightly.‌ Craze lines aren’t usually a health problem. But what causes them might be. Each of ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Why do people have two sets of teeth? – Ivy D., ...