What causes TMJD symptoms?
One of the most common causes of TMJD is teeth grinding and clenching, when you regularly push and scrape your teeth together. You may do this at night when you are sleeping, or when you are concentrating on something or feeling stressed. You may not be aware that you are doing it. Jaw problems can also result from nail biting or holding things between your teeth, which you may do more when you feel anxious or stressed.