Even if the manufacturer refuses to disclose the chemical composition of a filling material that is not patented, a chemist can determine the composition.I think I'll go to the library and find out if diamond products are patented.
Before I finish my replacements,I want to be assred in writing that my dental work does not contain barium, phenol , formaldehyde and several other nasty chemicals.Verbal assurances are not worth the paper they're not written on , especially when given by a dentist.