NBDE Review Questions: Quiz 472

A patient is unhappy with the esthetics of an anterior metal-ceramic crown, complaining that it looks too opaque in the incisal third. The reason for this is most likely _____.
- A. Using the incorrect opaque porcelain shade.
- B. Inadequate vacuum during porcelain firing.
- C. Not masking the metal well enough with the opaque.
- D. The tooth was prepared in a single facial plane

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