MH 108
There are no safe materials and never will be.
Even porcelain must be glued on and if it touches the opposite toothe it will crack it, it is way toooooooooooo hard and does not belong in the mouth, gold was the closest in softness, but gold leaches into the body and does harm to the pancreas and more.
This is why I suggest Dr. Hulda Clark's advanced cancer book for all dental rules, obey these and remove the metals and this also means many times the tooth. If you look at
http://www.obeynature.com you will see my teeth. I believe Dr. Clark when she says "Don't Let your teeth put you in "The" Box".
Blessings,
The BAREFOOT Herbalist