Dental Materials — Key differences for NEET MDS
Type I gold alloy = inlays soft. Type II = inlays onlays medium. Type III = crowns bridges hard. Type IV = partial denture frameworks extra hard. Ni-Cr = most common base metal alloy = beryllium concern. Gypsum bonded investment = gold casting = low melting. Phosphate bonded investment = base metal = high melting. Silica bonded = highest expansion.
📖 Read full notes →Feldspathic porcelain = most esthetic weakest most translucent. 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.
📖 Read full notes →NEET MDS frequently tests the ability to differentiate between related topics. Understanding the key differences between Casting Alloys & Investment and Dental Ceramics in Dental Materials is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.