title: Effect of material and configuration of antagonist on combined wear.
abstract: The aim of this study was to investigate the effect of antagonist material and configuration on combined wear, which was produced by alternating toothbrush wear and simulated occlusal wear on one specimen. Worn volume and maximum worn depth comparisons were done using two antagonist materials (steel and ceramic) and two antagonist configurations (flat and round). For the material factor, worn volume by the ceramic antagonist was greater than that by steel antagonist in the combined wear test. For the configuration factor, the round ceramic antagonist induced a greater volume loss of the resin composite. As for maximum worn depth, both the material and configuration of antagonist were influencing factors in the combined wear test--where the round ceramic antagonist induced a deeper wear of the resin composite. Based on the results of this study, we concluded that a round ceramic antagonist is suitable to be used for evaluating the wear behavior of resin composites.
authors.affiliation: Department of Dental Materials Science, School of Dentistry at Niigata, The Nippon Dental University, 1-8 Hamaura-cho, Niigata City, Niigata, 951-8580, Japan.
authors.forename: Katuma
authors.initials: K
authors.lastname: Kato
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kakuta
authors.forename: Hideo
authors.initials: H
authors.lastname: Ogura
mesh_terms: D001732:Bite Force; D002516:Ceramics / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D019554:Dental Restoration Wear / Q000145:classification; D006244:Hardness; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D013232:Steel / Q000737:chemistry; D013499:Surface Properties; D014099:Toothbrushing / Q000295:instrumentation; D015040:Zirconium / Q000737:chemistry
chemical_list: C112828:Clearfil AP-X; D003188:Composite Resins; D003764:Dental Materials; D008689:Methacrylates; C083568:Z100 composite resin; D013232:Steel; D012822:Silicon Dioxide; D019904:Polymethyl Methacrylate; D015040:Zirconium