Elastomeric Impression Materials

What are Elastomeric Impression Materials?

Elastomeric impression materials are a type of dental material used to create precise and flexible molds of teeth and oral tissues. These materials are known for their ability to accurately capture fine details and provide a flexible, yet stable, impression.

Types of Elastomeric Impression Materials

Polyvinyl Siloxane/ Addition Silicone Impression Materials: Vinyl polysiloxane (PVS) or addition silicone impression material impresses in detail reproduction, making it ideal for precise crown, bridge, and implant models. Its various viscosities bond well, allowing for accurate impressions with less viscous materials supported by thicker ones. PVS maintains dimensional stability once set, ensuring accuracy during packaging and transport.

However, PVS is sensitive to chemical contamination from latex and retraction cords, which can lead to inaccuracies. It can also tear...