title: Evaluation of occlusal marginal adaptation of Class II resin composite inlays.
abstract: In this paper, the results of a clinical study of the occlusal marginal adaptation of indirect Class II resin composite inlays are presented. The margins of 180 resin composite and 60 amalgam restorations, made by three dentists, were assessed, shortly following their placement. An indirect, photographic method has been applied to assess marginal adaptations. The restorations were classified into excellent and non-excellent marginal adaptation categories and on this basis influencing factors were determined. Resin composite inlays appeared to have a greater percentage of 'excellent' margins than amalgam restorations (46.1 percent and 6.7 percent, respectively). The dentist was the variable that most influenced the marginal adaptation. Variability in the period elapsing between applying the restoration and conducting the assessments is discussed as a factor that may impair a fair comparison with initial results for direct composites. Nevertheless, based on the literature, differences in initial marginal adaptation between direct and indirect restorations are described.
authors.affiliation: Department of Pediatric Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), The Netherlands.
authors.forename: C M
authors.initials: CM
authors.lastname: Kreulen
authors.forename: W E
authors.initials: WE
authors.lastname: van Amerongen
authors.forename: P J
authors.initials: PJ
authors.lastname: Borgmeijer
authors.forename: R J
authors.initials: RJ
authors.lastname: Gruythuysen
mesh_terms: D000328:Adult; D001641:Bicuspid; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D003188:Composite Resins / Q000737:chemistry*; D003722:Dental Alloys / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003737:Dental Cavity Preparation / Q000145:classification; D005069:Evaluation Studies as Topic; D006801:Humans; D007284:Inlays; D008963:Molar; D015588:Observer Variation; D010781:Photography; D011791:Quartz / Q000737:chemistry; D019279:Resin Cements; D013499:Surface Properties
chemical_list: D003188:Composite Resins; D003722:Dental Alloys; D019279:Resin Cements; C065770:Herculite XR; C067786:Visio-Molar; C082616:Clearfil CR; D011791:Quartz; D017438:Bisphenol A-Glycidyl Methacrylate; C036886:tytin; D003723:Dental Amalgam