Prostho vs Materials — Key differences for NEET MDS
Most accurate = Addition silicone PVS. Alginate = irreversible hydrocolloid. Agar = reversible hydrocolloid. Elastomeric ranking: Polysulfide least accurate. Condensation silicone releases alcohol. Polyether stiffest hydrophilic. Addition silicone most accurate. ZOE = mucostatic impression. Working time affected by temperature.
📖 Read full notes →Stress = Force divided by Area = internal resistance. Strain = change in length divided by original length = deformation. Elastic modulus = Youngs modulus = stress divided by strain = stiffness. Toughness = total area under stress-strain curve. Resilience = energy absorbed in elastic region only. Hardness tests: Knoop for micro surfaces, Vickers universal, Brinell for macrosurfaces.
📖 Read full notes →NEET MDS frequently tests the ability to differentiate between related topics. Understanding the key differences between Impression Materials Properties and Mechanical Properties in Prostho vs Materials is crucial for scoring well. Questions may test diagnostic features, treatment approaches, or characteristic findings.