What is the temporomandibular joint?

The temporomandibular joint (TMJ) is the hinge-like connection between the lower jawbone, known as the mandible, and the temporal bone of the skull, located in front of each ear. This joint is crucial for everyday activities like chewing, speaking, and yawning, as it allows the jaw to move smoothly in various directions—up and down, side to side, and forward and backward.

Issues with the TMJ, often referred to as temporomandibular disorders (TMD), can cause pain, stiffness, or clicking sounds when moving the jaw. These problems may result from injury, arthritis, teeth grinding, or misalignment of the jaw. If the joint becomes inflamed or damaged, it can limit jaw movement and lead to discomfort in the face, neck, or even the shoulders.