About 8 percent of adults grind their teeth, a condition called bruxism. Even more people clench which means you tightly clamp your top and bottom teeth together, especially the back teeth. Both may be triggered by daily stress.
The force of grinding or clenching puts pressure on the muscles, tissues and other structures around your jaw. This can lead to jaw joint disorders, jaw pain, soreness, headaches, earaches, damaged teeth and other problems. These symptoms are often referred to together as “TMJ” or temporomandibular joint disorders.