The Metals Used as the Core for the Porcelain-Fused-To-Metal (PFM)crowns

question 19

Multiple Choice

The metals used as the core for the porcelain-fused-to-metal (PFM) crowns are alloys of specific metals that will form a/an _____ layer as the metal is heated.

• A) oxide
• B) eutectic
• C) scintillating
• D) oxygen-inhibited

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