This fact is from Dental Ceramics in Dental Materials. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.
Leucite-reinforced = IPS Empress pressable
Lithium disilicate = IPS e.max most popular all-ceramic
Zirconia = strongest ceramic = opaque = posterior crowns
CAD-CAM = computer-aided design manufacturing
Porcelain fused to metal = PFM = most common fixed prosthesis historically
Metal-ceramic bond = oxide layer.