19/12/2025
Teeth grinding and jaw clenching, also called bruxism, is a common condition that affects many people, especially during sleep.
It can happen occasionally or become a chronic problem, and it can cause a variety of issues if left unmanaged.
During bruxism, the jaw muscles can become extremely strong.
In severe cases, studies show that the pressure applied by clenching or grinding teeth can reach up to 70–90 kilograms (about 150–200 pounds). This is enough to cause worn teeth, jaw pain, headaches, and even temporomandibular joint (TMJ) problems. However, this high pressure is not experienced by everyone. Most people generate lower forces during grinding, usually around 20–40 kilograms.
The causes of bruxism can vary. Stress, anxiety, poor sleep, misaligned teeth, or even certain medications can trigger it. Symptoms include sore jaw, worn or chipped teeth, tooth sensitivity, headaches, and fatigue in jaw muscles. Some people may grind their teeth without even knowing it, and a partner might notice the sound at night.
Managing bruxism involves addressing the root causes. Relaxation techniques, stress management, proper sleep habits, and dental appliances like night guards can help reduce the pressure on teeth and jaw. In some cases, a dentist or doctor may recommend further treatment for severe or chronic bruxism.
While the maximum jaw pressure can be very high in some individuals, the average person experiences less force. Awareness and early intervention are key to protecting your teeth and jaw health.