A Answers (3)
The most common causes of bruxism include stress, anxiety, and inability to cope with frustration or anger. Those with aggressive or hyperactive personalities are also at an increased risk for bruxism. Bruxism can occur as a complication of some neurological disorders, including Parkinson's disease and Huntington's disease.
American Dental Association answered
Stress, anxiety and sleep disorders are all personality causes of bruxism, or teeth grinding. Bruxism commonly occurs during sleep.
If stress is the cause you need to find a way to relax. Meditation, counseling and exercise can all help reduce stress and anxiety.
Bruxism refers to the overuse of the jaw muscles when not involved in speech or swallowing. Sometimes this overuse is the result of anxiety or nervousness resulting in a habit of clenching the jaws or grinding the teeth. It would be rare for an underlying neurological disease to cause bruxism.
Treatment usually entails the use of muscle relaxants, biofeedback, and psychotherapy. If pain is noted, sometimes an anti-inflammatory pain medication can be useful. Some people are prone to bruxate during sleep. They might be helped with the use of a nocturnal mouth guard.