Educational Content: This article is for informational purposes only and does not constitute medical advice. Always consult a healthcare provider for diagnosis and treatment.

Definition of Temporomandibular joint (TMJ)

Medically reviewed by Min Clinic Staff | Updated: January 2026

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.