Dental Opaque porcelain: 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 π‘ Explanation Opaque porcelain: β Correct Answer: B. contains opacifier like zirconium and titanium oxide