Baby teeth have a value that goes beyond money from the tooth fairy. Scientists say they also hold the key to figuring out what metals in the environment infants were exposed to — and how they affect ...

Teeth help animals bite and chew food. Meat-eating carnivores tend to have sharp teeth to sink into their prey, while herbivores tend to have flatter teeth to grind down their plant-based meals. Some ...

Baby teeth, officially called primary teeth, typically begin their journey into the world when infants reach around six months of age. That first tiny tooth breaking through the gums marks an exciting ...