title: Comparison of exothermic release during polymerization of four materials used to fabricate interim restorations.
abstract: Four materials commonly used to make resin crown and fixed partial denture interim restorations (poly)methylmethacrylate, vinyl ethylmethacrylate, visible-light activated resin, and a Bis-acryl composite resin) were studied to evaluate their heat-producing capabilities. All four materials, despite manufacturers' claims, created a rise in temperature during polymerization. Poly(methylmethacrylate)'s temperature increases were significantly higher than those of the other three materials and visible-light activated resin had temperature increases that were significantly lower than those of the other three products. Dentists must be aware of all potential heat-producing sources to minimize thermal injury to the hard and soft tissues of the oral cavity during the fabrication of interim crowns and fixed partial dentures.
authors.forename: C F
authors.initials: CF
authors.lastname: Driscoll
authors.forename: G
authors.initials: G
authors.lastname: Woolsey
authors.forename: W M
authors.initials: WM
authors.lastname: Ferguson
mesh_terms: D000180:Acrylic Resins / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry; D003779:Denture Design; D003833:Denture, Partial, Temporary; D006358:Hot Temperature; D008027:Light; D008768:Methylmethacrylates / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D012117:Resins, Synthetic / Q000737:chemistry*; D013821:Thermometers
chemical_list: D000180:Acrylic Resins; D003188:Composite Resins; D008768:Methylmethacrylates; D011108:Polymers; D011109:Polymethacrylic Acids; D012117:Resins, Synthetic; C060386:Triad resin; C069716:Jet, dental resin; C091347:vinyl ethyl methacrylate; C069714:Protemp