Dental Materials — Key differences for NEET MDS
Addition silicone PVS = most accurate no byproduct. Condensation silicone = releases alcohol byproduct = shrinkage. Polysulfide = longest setting time messiest = lead dioxide accelerator. Polyether = stiffest most hydrophilic = initial rigidity. Alginate = irreversible hydrocolloid = snap set. Agar = reversible hydrocolloid = high detail low strength. Impression plaster = most rigid.
📖 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 Impression Materials and Dental Ceramics in Dental Materials is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.