title: Effects of abrasive and fiber components in medium on wear of composite resins.
abstract: Effects of abrasive and fiber components in a medium on the wear behavior of composite resins were evaluated. Calcium diphosphate and methyl cellulose were included in the medium as abrasive and fiber components respectively. A range of 0, 4, or 8% abrasive- or fiber-containing media were applied on a composite resin specimen during a simulated occlusal wear test. Four composite resins, Clearfil AP-X, Z100 Restorative, SOLARE P, and SOLIDEX F, were tested to evaluate the effects of these components in the medium. Presence of abrasive material in the medium increased the wear of composite resins significantly, but its effect differed among the composite resins. Presence of fiber material in the medium significantly decreased the wear of two composite resins, whereas the other two composites showed no significant differences. Nonetheless, presence of fiber in the medium generally tended to prevent the wear of composite resins.
authors.affiliation: Department of Dental Materials Science, School of Life Dentistry, Niigata, The Nippon Dental University, 1-8 Hamauracho, Niigata-shi, Niigata 951-8580, Japan. kakuta@ngt.ndu.ac.jp
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Kakuta
authors.forename: Hideo
authors.initials: H
authors.lastname: Ogura
mesh_terms: D002131:Calcium Pyrophosphate / Q000737:chemistry; D055598:Chemical Phenomena; D003188:Composite Resins / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D019554:Dental Restoration Wear; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D008747:Methylcellulose / Q000737:chemistry; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry; D012822:Silicon Dioxide / Q000737:chemistry; D012997:Solvents / Q000737:chemistry; D013213:Starch / Q000737:chemistry; D013499:Surface Properties; D015040:Zirconium / Q000737:chemistry
chemical_list: C112828:Clearfil AP-X; D003188:Composite Resins; D003764:Dental Materials; D008689:Methacrylates; D019279:Resin Cements; C501838:Solare; C113676:Solidex; D012997:Solvents; C083568:Z100 composite resin; D012822:Silicon Dioxide; D008747:Methylcellulose; D013213:Starch; D015040:Zirconium; D002131:Calcium Pyrophosphate