Dental alloy with a high gold content that is devoid of palladium and copper

摘要

A novel high-gold dental alloy (I), free of palladium and copper, comprises: (a) 75-95 wt. % gold, (b) 5-20 wt. % platinum, (c) 0.5-3.5 wt. % zinc, tin and/or indium, (d) 0.1-0.8 wt. % niobium, tantalum, titanium or vanadium and (e) individual grains of iridium or rhodium, such that the amount of (d) (by weight) is 2-6 times higher than that of (e).