What dental alloys can be used to make all-metal and porcelain-fused-to-metal dental crowns?

What types of metals are used in dental crowns? There are a number of different dental alloys that can be used in the fabrication of dental crowns, either all-metal or porcelain-fused-to-metal. Notice that the term alloy was used in the preceeding sentence. No pure metals are used, not even gold. This is because the ...