I've been suffering from headaches for years. Been to the optometrist, dentist and doctor. Doctor is now referring me to the hospital. However... when I was at the dentist I suggested that I might clench my jaw at night because my jaw would often be sore in the morning. He gave me a bite guard that goes over my front teeth and makes a space at my back teeth. That relieved the jaw tension. But I'm starting to think that maybe I am now clenching my front teeth and pushing against this guard. Just wondered if anyone clenches their front teeth and did the dentist give you anything to stop them biting? My problem is that they'll just clench against whatever is there, so the bite guard didn't stop them. Am going to ring the dentist again but am curious as to whether anyone else does this?