Stability of some copper-based dental materials in artificial saliva

Abstract

Cu-Al-Ni based alloys, although are included in the category of inferior non-precious alloys, are still widely used in many countries, unofficially accepted in absence of some international standards, especially due to their low cost, the satisfactory tolerance and perhaps to their aspect, similar to that of the gold-based alloys. Contrary, in many countries the cooper-based alloys are not accepted as biomaterials, especially due to their high citotoxicity.