Come 2019, however, the gap in the middle of her upper teeth closed, because she had her retainer taken out in an effort to combat neck pain. "I was so upset because I've had the gap my whole life.

Crossbite in children occurs when the upper and lower teeth don’t align properly. It can be caused by genetics, habits like ...

In addition to drilled holes and marks from toothpicks, the researchers found evidence of upper front teeth deliberately carved with grooves, mostly horizontal, a known practice among Viking men.

Greenland sharks have narrow, pointed upper teeth and broader, squared teeth on the lower jaw. Holding large prey in position with their upper teeth, they roll their head in a circular motion ...

Sharks don’t chew, so this combination of pointed lower teeth and serrated upper teeth helps them to cut prey into smaller pieces for swallowing. Great white sharks have this combination of teeth.