Protective effect of polystyrene liners for composite resin restorations.
The main purpose of lining cavities before insertion of composite resin restorations is to prevent bacterial contamination at the cavity walls. A thin film of polystyrene liner dissolved in ethyl acetate applied to all surfaces by compressed air provided good protection against bacteria on cavity walls under composite resin restorations. An antibacterial primer in an alcohol solution applied prior to the liner may improve this protection. This procedure had no detectable injurious effect on the pulp.
D000818:Animals; D001424:Bacterial Infections / Q000517:prevention & control; D003188:Composite Resins; D003736:Dental Cavity Lining; D003786:Dental Pulp Cavity / Q000382:microbiology; D003793:Dental Restoration, Permanent; D008252:Macaca fascicularis; D008855:Microscopy, Electron, Scanning; D011137:Polystyrenes; D014076:Tooth Diseases / Q000517:prevention & control
D003188:Composite Resins; D011137:Polystyrenes