Damage to the jaw joint or the muscles that control your jaw movement can be caused by several factors, including: grinding your teeth at night. involuntarily clenching your jaw due to stress and anxiety. trauma to the jaw joint, such as getting hit in the face while playing sports.
- The disk erodes or moves out of its proper alignment
- The joint’s cartilage is damaged by arthritis
- The joint is damaged by a blow or other impact
- The temporomandibular joint combines a hinge action with sliding motions. The parts of the bones that interact in the joint are covered with cartilage and are separated by a small shock-absorbing disk, which normally keeps the movement smooth.