Sharks and crocodiles grow endless sets of teeth, but humans only get two. Explore how teeth develop and how regenerative ...

Children have 20 milk teeth, 10 in each jaw. This set of teeth is important for chewing and speaking, and helps to keep space ...

At 6 months, infants whose mothers had the highest cortisol levels averaged four more teeth than those with the lowest.

This kind of smile happens in one in 2,000 to 3,000 newborns. — -- Alyssa Bailey was born three days after Christmas with a little something extra -- two bottom front teeth. The doctors and ...