Glad to hear what the protocal is involving removing old fillings. No dentist I have had that replaced old fillings did this. Not one. Old fillings and composites have been replaced, and now I wonder if this had done additional damage to my immune system. I had crowns put on a number of the teeth. I still can't believe that I never was protected in this way. Thank you for the information, though I cringe to hear it. ginnie