A dental casting material that consists of gold, palladium, and silver with lesser amounts of iridium, ruthenium, and platinum. These metal alloys are used for inlays, onlays, complete metal crowns, and backings for ceramic baking.
An alloy of two or more metals, one of which is a noble metal (gold, silver, platinum, or palladium). Noble-metal alloys are generally nonreactive and corrosion-resistant.