Three-body wear of four types of light-activated composite resin veneering materials.
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.
Matsumura
H
H
Department of Fixed Prosthodontics, Nagasaki University, School of Dentistry, Japan.
Leinfelder
K F
KF
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
D003188:Composite Resins; D008689:Methacrylates; D008768:Methylmethacrylates; C083619:thermoresin LC; C076161:Elcebond; C083618:new metacolor; C083620:cesead