Trismus (Lockjaw): Causes, Symptoms, and Effective Treatment Options
Have you ever woken up and felt like your jaw was stuck, or noticed after a long dental visit that you could not open your mouth wide enough to eat properly? This uncomfortable condition is known medically as trismus, though many people refer to it as lockjaw. Trismus occurs when the muscles responsible for chewing go into a spasm, limiting how far the mouth can open. While the term lockjaw was once closely linked to tetanus, it is now used more broadly to describe any condition that restricts jaw movement. Most people can open their mouth between 35 and 55 millimeters, roughly the width of three fingers. If you struggle to reach that range, trismus may be the cause. It is important to understand that trismus is usually a symptom rather than a disease itself. It often develops as a complication of another issue affecting the jaw, muscles, or surrounding tissues. Common Causes of Trismus The causes of trismus vary widely. Dental procedures are among the most common triggers, especi...