(CN) – Sea urchins’ sharp new teeth are a chip off the old block: Research published Wednesday in the journal Matter confirms how spiny echinoderms sharpen their teeth by breaking them off. “The ...

Your bite is the way your upper and lower teeth fit together. If your upper teeth fit slightly over your lower teeth and the points of your molars fit the grooves of the opposite molars, then you have ...

Malocclusion of the teeth is when your teeth are misaligned. This can lead to oral health complications if left untreated. It may also be referred to as: crowded teeth crossbite overbite underbite ...