The temporomandibular joint relies on a delicate balance of muscles, ligaments, and cartilage to function smoothly. The masseter muscle, one of the strongest muscles in the body, generates the force needed for chewing. When this muscle becomes hypertrophied or chronically contracted, it places excessive strain on the joint, leading to pain, clicking, and restricted movement.
Bruxism (teeth grinding and jaw clenching) is one of the most common drivers of TMJ disorder. Many patients clench unconsciously during sleep or periods of stress, generating forces up to 250 pounds per square inch on the teeth and jaw. Over time, this repetitive strain fatigues the muscles and irritates the joint capsule.
The jaw's complex biomechanics mean that misalignment in one area creates compensatory strain throughout the entire system. When the masseter and temporalis muscles remain in a state of chronic tension, the joint cannot glide properly, resulting in the clicking, popping, and locking that characterize TMJ dysfunction.
