We consulted dentists to discover the potential benefits and side effects of fluoride-free, nano-hydroxyapatite toothpaste.

In a river of northern Bolivia, a silvery predator with “sharp” teeth swam through the murky waters. Its white eyes scanned the aquatic landscape, but it wasn’t the only one looking around ...

The types of teeth are incisors, canines, premolars, and molars, and each serves a different purpose. Learn more about the types of teeth in this article.

Scientists found 3-foot-long fish with small, sharp teeth in murky river and discovered new species: dark long-body snake eel, study said.

In the history of teeth, perhaps no tooth is as famous as the saber tooth. These long, blade-like canines seem almost perfectly optimized to kill prey. They've evolved at least five times in ...

A deep-sea fish uses a glowing tendril below its mouth and a row of transparent buzz saw teeth to improve its hunting skills, ocean researchers revealed Wednesday.

3. Your teeth may have to be filed. Before you have visions of the sharp little sharp teeth that are filed to a point before certain veneers are applied, this is not like that.

Scientists found 1-foot-long eel with “sharp” teeth in coral crevices and discovered a new species: Arabian false brown moray, a study said.

A coating of iron on Komodo dragons' teeth could help keep them sharp for tearing into prey, as well as protect them from digestive acids. Marcos del Mazo / LightRocket via Getty Images Komodo ...

Komodo dragon teeth are ironclad. Literally. The serrated edges and tips of the reptiles’ razor-sharp chompers are lined with a layer of iron, researchers report July 24 in Nature Ecology ...

Komodo dragons have iron-coated teeth—never before seen in reptiles Just when the world’s largest reptile couldn’t get any more metal, scientists made a surprising discovery.