CT scan of the front of a skate, showing the hard, tooth-like denticles on its skin (shown in orange). Credit: Yara Haridy CT scan of the front of a skate, showing the hard, tooth-like denticles on ...

These "total monsters of fishes" are extinct today, though new clues about their lives come from CT scans and their closest ...

Archeologists found three jade-inlaid teeth in a museum collection. These teeth show that Maya children used dental inlays as a form of art.

Ancient Egyptians and Etruscans pioneered orthodontics, using delicate gold wires and catgut to straighten teeth. It’s a tale that has appeared in dentistry textbooks for decades, portraying our ...

Chattering teeth – that rapid, sometimes noisy clack of your upper and lower teeth – is a minor, startling symptom that can feel embarrassing and confusing.