Elastomeric impression materials are used to reproduce very accurate impressions where all the little details are also captured in the impression and reproduced in the cast produced. Classification of Elastomeric Impression materials: Elastomeric impression materials are divided into 3 types based on their composition 1. Polyether 2. Polysulfide 3. Silicone: Addition Condensation Failures in Elastomeric [&hellip

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