I had compatibility testing and recommend it. It's not necessary as many people don't have it done and have recovered well. Just the same, it's best to rather than having material put in your mouth that you may react to. For myself, it was the standard test done by a competant dentist and I have never regretted it.

There are other protocols besides the the one just mentioned that work equally well. Some use Andrew Cutler's protocol. For myself, that has been the ticket. I think his doctorate in chemistry (from Princeton), as well as his bachelors degree in Physics speaks for itself.

His protocol is down to earth, as he understands that what one of us may react to another may not. He is far from dogmatic. I've personally read where he open-mindedly told someone on the forum that if something worked for her (in this case something he doesn't usually recommend) then she should use it. For someone with his education to say that... spoke volumes to me.