When there’s a mismatch or misalignment between your upper jaw bone (or maxilla) and the lower one (mandible), you have an uneven or crooked jaw. This can arise due to temporomandibular joint (TMJ) ...

Mammals with flexible, motile noses that can “sniff” are in the group Theria (right side of pink dot). As species’ ancestors accumulated more physical and genetic differences (increasingly younger ...

Orthognathic surgery is a procedure that lines up your upper and lower jaw. It’s also called corrective jaw surgery. It’s a complex surgery and recovery can be long, but getting it can help you sleep ...

The jaw is one of those body parts that’s easy to take for granted until it hurts—and then it’s all you can think about. When jaw pain makes it difficult to chew, talk, or move due to shock-like ...

Cherubism is a rare genetic disorder in which the bones of the lower and sometimes the upper jaw are affected. Instead of bones, you have tissue growths that appear like cysts. Due to this, the cheeks ...

A fragmentary bone from a Spanish cave is the oldest human face ever found in western Europe. The bones are part of the cheek and upper jaw, and are between 1.1 million and 1.4 million years old. The ...

A walrus rostrum (upper jaw bone) with tusks used in the study. It can be dated to c.1200-1400 CE based on the characteristics of a runic inscription in Old Norse. It is from the collections of Musée ...