title: Three-body wear of four types of light-activated composite resin veneering materials.
abstract: The in vitro wear resistance of four types of light-activated composite resins designed for crown and bridge veneers was determined by means of a three-body wear-testing device. After repeated cycles of loading, the wear values were measured with a profilometer, and surface textures were observed through a scanning electron microscope. All of the composite resin veneering materials examined in this investigation exhibited greater wear resistance than an unfilled poly(methyl methacrylate)-based material. The worn surface of veneering materials demonstrated outlines of fillers, indicating the difference in wear resistance between the resin matrix and the filler.
authors.affiliation: Department of Fixed Prosthodontics, Nagasaki University, School of Dentistry, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Matsumura
authors.forename: K F
authors.initials: KF
authors.lastname: Leinfelder
mesh_terms: D000704:Analysis of Variance; D001732:Bite Force; D003188:Composite Resins / Q000737:chemistry*; D003801:Dental Veneers; D006244:Hardness; D008027:Light; D008422:Materials Testing / Q000295:instrumentation; D008689:Methacrylates; D008768:Methylmethacrylates; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D008689:Methacrylates; D008768:Methylmethacrylates; C083619:thermoresin LC; C076161:Elcebond; C083618:new metacolor; C083620:cesead