TMJ Function in Jaw Opening

Opening the mouth involves the TMJ sliding forward and downward along the skull’s temporal bone. The digastric and lateral pterygoid muscles play a significant role in this movement, gently pulling the jaw open. The TMJ’s unique structure allows this motion to occur smoothly and efficiently. If the TMJ or muscles are inflamed or tense, opening the mouth can become painful or restricted. TMJ disorders often cause locking or limited motion, making it difficult to perform simple actions like talking or eating. Proper care and relaxation of the TMJ can help restore normal movement.