Teeth Grinding

People can clench and grind subconsciously during both the day and night, although sleep-related bruxism is often the bigger problem because it is harder to control.

The cause of bruxism is not completely agreed upon, but daily stress may be the trigger in many people. Some people probably clench and never feel symptoms. Whether or not bruxism causes pain and other problems may be a complicated mix of factors -- how much stress you are under, how long and tightly you clench and grind, whether your teeth are misaligned, your posture, ability to relax, diet, sleeping habits, and other factors.