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  • Dental impression materials with elastomeric properties whose main component is vinyl polysiloxane. They are designed to make an accurate negative reproduction of a given area of the oral cavity. These dental impression materials consist of a base (silicone polymer), a catalyst (e.g., chloroplatinic acid) and a filler (silica). Vinyl polysiloxane (VPS) dental impression materials usually have excellent elastic recovery, minimal permanent deformation, and adequate tear strength to maintain impression integrity and precision upon removal. These dental impression materials are available with a fast setting time and/or several degrees of viscosity. They are usually supplied in cartridges with or without mixing tips. VPS dental impression materials are used in dental offices for immediate denture and reline impression procedures and for making precise crown, bridge, and denture impressions.
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