Multiple Choice
What are the three principal components of dental porcelains?
A) Silica, calcium oxide, and alumina
B) Alumina, zinc oxide, and calcium fluoride
C) Alumina, potassium oxide, and calcium oxide
D) Calcium oxide, magnesium oxide, and chromium oxide
E) Silica, alumina, and potassium oxide
Correct Answer:

Verified
Correct Answer:
Verified
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