Definition of Temporomandibular joint (TMJ) Temporomandibular joint (TMJ): The joint that hinges the lower jaw (mandible) to the temporal bone of the skull. It is one of the most frequently used joints in the entire body, moving whenever a person eats, drinks, or talks.
Temporomandibular joint (TMJ): The joint that hinges the lower jaw (mandible) to the temporal bone of the skull. It is one of the most frequently used joints in the entire body, moving whenever a person eats, drinks, or talks.
