title: Wear of enamel cusps opposed by posterior composite resin.
abstract: The use of posterior composite resins has grown considerably over the past 5 years. While most research efforts have been devoted to improving wear resistance, little effort had been made to determine possible wear of the cusp of the opposing tooth. A recently developed in vitro wear system was used to evaluate a series of composite resins for their ability to abrade opposing enamel cusps. When the resins were tested under the same conditions, a considerable range in enamel wear was observed. Representing opposite ends of the scale, the quartz-containing composite resin caused the enamel to wear away ten times more than did the microfilled composite resin.
authors.affiliation: Department of Biomaterials and Restorative Dentistry, University of Alabama at Birmingham, School of Dentistry, 1919 7th Avenue South, Birmingham, Alabama 35294-0007, USA.
authors.forename: S
authors.initials: S
authors.lastname: Suzuki
authors.forename: K F
authors.initials: KF
authors.lastname: Leinfelder
mesh_terms: D017609:Barium Compounds / Q000737:chemistry; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D001732:Bite Force; D003188:Composite Resins / Q000737:chemistry*; D003743:Dental Enamel / Q000473:pathology*; D003764:Dental Materials / Q000737:chemistry*; D003793:Dental Restoration, Permanent / Q000009:adverse effects*; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008422:Materials Testing; D011140:Polyurethanes / Q000737:chemistry; D011791:Quartz / Q000737:chemistry; D016628:Replica Techniques; D012822:Silicon Dioxide / Q000737:chemistry; D013499:Surface Properties; D014072:Tooth Abrasion / Q000209:etiology; D057085:Tooth Wear / Q000209:etiology*
chemical_list: D017609:Barium Compounds; D003188:Composite Resins; D003764:Dental Materials; D011140:Polyurethanes; C102738:barium glass filler; C078906:Herculite Condensable; C092420:Clearfil Photo Posterior; C074741:Silux Plus; D011791:Quartz; D017438:Bisphenol A-Glycidyl Methacrylate; D012822:Silicon Dioxide; C046503:formula F 70