Follow-Up: I have no idea if I grind my teeth at night, but i'm sure I must, because I brux NON-STOP during the day. I've been doing it since childhood, and by now, at 24, I'm sure I have the teeth of an 80 year old woman... When I was 14-15, I had so much pain and popping/grinding in my jaw joint that I had difficulty opening my mouth, and my parents took me to a local maxillofacial specialist. He told me I had to relax, and gave me a relaxation tape, which didn't work as he intended--but did help a little, because I found it hysterically funny, and I believe the convulsive laughter it provoked in me must have helped my stress somewhat. He did teach me one thing which I have found helpful, though. These were sets of physical therapy exercises designed to strengthen the other muscles in my face and mouth ( the ones not operative in the grinding). It seemed that the grinding muscles had become so strong and developed that they were pulling my jaw out of joint. While I don't know how well they worked, they did seem to give me at least some psychological relief, and the intentionally different muscle movements were a welcome change; they broke the unconscious pattern of the bruxism. The one I remember best and still do is to place the tip of my tongue against the back of my front teeth and and push my jaw down. It seems to relax the muscles. Now, ten years later, I still grind nonstop, but I did see some improvement for a while as a result of the treatment. My jaw is better, though still slightly "out of whack", but there is less pain and freer range of motion. I have very little stress in my life now; I believe I brux because it is a deeply ingrained habit, and other than trying to stay aware of it and breaking the cycle with "stopping" activities like opening my mouth, I have no idea how to break the habit. Comments welcome. good luck, everyone.