What is the meaning of Vinyl Polysiloxane?
Vinyl Polysiloxane is widely used term in Dental Materials.
Vinyl Polysiloxane, or VPS, is a silicone-based dental material commonly used for dental impressions. It is a type of addition silicone, which means it cures by a chemical reaction known as hydrosilation.
VPS materials consist of a base paste and a catalyst paste, which are mixed together in equal proportions to initiate the curing process. Once the two pastes are combined, a cross-linking reaction occurs, forming a three-dimensional network of polymer chains. This network structure gives VPS its desirable properties for dental impressions, such as high accuracy, good tear strength, and dimensional stability.
Vinyl Polysiloxane materials have a relatively low viscosity, allowing for easy flow and adaptation to the oral tissues. They are also hydrophobic, meaning they repel water and saliva, which prevents moisture from interfering with the accuracy of the impression. Additionally, VPS materials have a relatively high elastic recovery, meaning they can rebound to their original shape after being deformed, allowing for accurate reproduction of fine details.
Overall, Vinyl Polysiloxane is a widely used dental material for making precise and accurate impressions in various dental procedures, including crown and bridge work, denture fabrication, and orthodontic appliances.
Feel free to get in touch with experts, if you have any questions about Vinyl Polysiloxane. You can also browse more terms meanings on our dictionary page.