I have a questions about having several metal based crowns and the “Oral Galvanic Effect” caused by having too much metal in ones mouth. What are strong alternatives? It is a very long and painful story but I need 25 crowns! I know it seems outrageous but I have to have a full restoration because of sever TMJ Disorder. I have all temps now and i am afraid to put THAT much metal in my mouth. 400 words is a lot!