I have TMJ, and my jaw is so messed up, it's insane. The first dentist I saw did admit that the mercury had messed up my teeth, which in turn caused problems with my jaw, especially because of the metal that got drilled into my jawbone, via root canal. The dentist I am seeing now, told me this morning, that he doesn't even want to begin to address the jaw problems, until the amalgam is removed and the teeth fixed. He said sometimes that will alter my bite, and I may not have many or any problems at all once the teeth are fixed. Reading between the lines, I am thinking he is saying he wants to see how I feel/react with the mercury out, to see if it cures my jaw problems.