Hmmm, I know DMSA is not mean to chelate brain mercury, but it sure felt like it did for me at times! Some people feel a pulling/stinging/burning sensation too in the brain. Aching also, kidneys/muscles etc. And at times excessively tired during chelation, particularly as the round goes on. First day maybe ok, but yes, after that, things can start to happen. For me, it was often after day 2 and sometimes it took longer for me to really start feeling it and I'd have to quit and take a break.

I hope I have not given you wrong advice! I would feel awful. If you do not feel comfortable with this, then by all means, quit and perhaps ask somebody who would know more!

Metal does not belong in the mouth. Any metal will set up a reaction inside the body. I was very very ill when I had braces on my teeth (nickel), even worse than amalgam for me (though it was likely the combination). Surely they can get you a bridge made out of a more biocompatible material? ie. zirconium or something?

Also, if you do chelate, probably better to wait till you get over the cold and make sure you're taking supportive supplements (A, E, C, B complex, magnesium, zinc, milk thistle etc) and essential fatty acids (mercury free fish oil is good = molecularly distilled). You can get some very reasonably priced fish oils that are purified.