![]() When used as lab putty, this type of material is packaged as two high viscosity putties. Latex gloves have been implicated in interference of the setting reaction so a different glove material is suggested.Īddition reaction silicones are familiar to restorative dentists as cartridge dispensed polyvinylsiloxane (PVS) impression materials. Some users report skin irritation from the catalyst and recommend using gloves while mixing this type of lab-putty. Examples of this type of lab putty are Sil-Tech (Ivoclar Vivadent) and Lab-Putty (Coltene/Whaledent). The highly filled putty base has less polymer and results in less polymerization shrinkage. The reaction and the by-product can lead to polymerization shrinkage, so this kind of material is generally packaged with a highly filled putty base and a lower viscosity catalyst activator. Lab putties may be differentiated by their chemistry:Ĭondensation reaction silicones irreversibly cure leaving ethyl alcohol as a by-product and aren’t meant to polymerize intra-orally. Lab putty is a silicone impression material and falls into the more general category of elastomeric impression materials. The usefulness extends into clinical applications as well – for instance, chairside space analysis and as a matrix for direct restorations. In the lab, it can be used for a variety of applications like restorative space analysis, as a matrix for provisional fabrication or as a guide for the fabrication of definitive restorations. Lab putty is the dental material's version of baseball’s utility player.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |