title: Two-body wear resistance of some indirect composite resins.
abstract: The aim of this study was to evaluate two-body wear of five indirect composites and compare them with enamel. Signum, belleGlass HP, SR Adoro, Dialog, GC Gradia and enamel were formed into cylinders (n = 10). Two-body abrasive wear rates were determined using a porcelain disk and a pin on disk apparatus. The height and weight loss of the specimens were measured by stereomicroscope and digital scale. The data were subjected to analysis of variance and Tukey HSD tests to determine significant differences (alpha = 0.05). GC Gradia showed significantly less wear resistance than the other materials. Enamel was more resistant than any of the tested composites. Within the limitations of this study it can be concluded that the type of resin, filler size and method of polymerization could have affect the two-body abrasion resistance of indirect composites.
authors.affiliation: Dental Research Center, School of Dentistry, Isfahan University of Medical Sciences. savabi@hotmail.com
authors.forename: Omid
authors.initials: O
authors.lastname: Savabi
authors.forename: Farahnaz
authors.initials: F
authors.lastname: Nejatidanesh
authors.forename: Mitra
authors.initials: M
authors.lastname: Shabanian
authors.forename: Zahra
authors.initials: Z
authors.lastname: Anbari
mesh_terms: D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003743:Dental Enamel / Q000648:ultrastructure; D003764:Dental Materials / Q000737:chemistry*; D019554:Dental Restoration Wear; D003799:Dental Stress Analysis / Q000295:instrumentation; D005898:Glass / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D011092:Polyethylene Glycols / Q000737:chemistry; D011109:Polymethacrylic Acids / Q000737:chemistry; D011140:Polyurethanes / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D003764:Dental Materials; C470230:Gradia; D008689:Methacrylates; D011109:Polymethacrylic Acids; D011140:Polyurethanes; C110370:belleGlass; C029824:urethane dimethacrylate luting resin; C020946:triethylene glycol dimethacrylate; D011092:Polyethylene Glycols; D017438:Bisphenol A-Glycidyl Methacrylate; D012822:Silicon Dioxide; C102737:1,4-butanediol dimethacrylate