Opaque porcelain________________?

Correct answer: B. Contains opacifier like zirconium and titanium oxide

  • A. Is Feldspathic glass
  • B. Contains opacifier like zirconium and titanium oxide
  • C. Not used to mask the colour of the cement used in placing of restoration
  • D. Used to produce the characteristic translucence, which is an inherent aspect of the incisal edge in natural teeth

Explanation

Opaque porcelain masks the dark metal substructure and contains opacifying oxides such as zirconium oxide and titanium oxide. Translucency is mainly provided by other porcelain layers, not the opaque layer.

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