Important fact regarding Impression Materials — Properties: Most accurate = Polyvinyl siloxane (addition silicone). Alginate = irreversible hydrocolloid. Agar = reversible hydrocolloid. Elastomeric ranking: Polysulfide (least) < Condensation silicone < Polyether < Addition silicone (most accurate).

This fact is from Impression Materials — Properties in Prosthodontics. It is a commonly tested concept in NEET MDS examinations. Understanding this fact is crucial for answering MCQs correctly.

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More Facts from Impression Materials — Properties

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