I have had ultrasound and a lot of stretching exercises. I go three times a week, and although I still have the clicking and popping and the pain, I can actually, if I do it correctly, can get my jaw to open without clicking. I takes a lot of concentration, though, nothing natural about it, that's for sure. My physical therapist says she doesnt have the opportunity to work with that many TMJ sufferers, so she likes trying different things with me.
Good luck to you,
Susie