title: Marginal adaptation of indirect composites and ceramic inlay systems.
abstract: This study evaluated the marginal adaptation of four different inlay indirect restorative systems: feldspathic ceramic (Duceram LFC-Degussa) and three laboratory-processed resin composites (Solidex-Shofu; Targis-Ivoclar; Artglass-Heraeus Kulzer). Sixty mesial-occlusal-distal (MOD) standard cavities were prepared in mandibular molars and divided randomly. Polyvinylsiloxane impressions were made and the restorations were prepared following the manufacturer's instructions. Marginal adaptation evaluation was accomplished using an image collector computer system with a digital gauging appliance at four points on the occlusal, proximal and gingival regions with 250x magnification. Among all the materials, the marginal discrepancy recorded on the gingival margins was statistically larger than that recorded on the proximal and occlusal regions. Duceram LFC showed greater marginal discrepancy than Solidex, Artglass and Targis, which showed no statistically significant differences among them.
authors.affiliation: Operative Dentistry Laboratory, Piracicaba Dental School-State University of Campinas, Brazil. carlosjsoares@umuarama.ufu.br
authors.forename: Carlos José
authors.initials: CJ
authors.lastname: Soares
authors.forename: Luis Roberto Marcondes
authors.initials: LR
authors.lastname: Martins
authors.forename: Alfredo Júlio
authors.initials: AJ
authors.lastname: Fernandes Neto
authors.forename: Marcelo
authors.initials: M
authors.lastname: Giannini
mesh_terms: D000538:Aluminum Silicates / Q000737:chemistry; D000704:Analysis of Variance; D002516:Ceramics / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003737:Dental Cavity Preparation / Q000145:classification; D003760:Dental Impression Materials; D018772:Dental Marginal Adaptation; D003764:Dental Materials / Q000737:chemistry*; D003776:Dental Porcelain / Q000737:chemistry; D005899:Glass Ionomer Cements / Q000737:chemistry; D006801:Humans; D007091:Image Processing, Computer-Assisted; D007284:Inlays; D008963:Molar; D011145:Polyvinyls; D017680:Potassium Compounds / Q000737:chemistry; D012823:Silicate Cement / Q000737:chemistry; D012833:Siloxanes; D013499:Surface Properties
chemical_list: D000538:Aluminum Silicates; D003188:Composite Resins; D003760:Dental Impression Materials; D003764:Dental Materials; C095718:Duceram; D005899:Glass Ionomer Cements; D011145:Polyvinyls; D017680:Potassium Compounds; D012833:Siloxanes; C113676:Solidex; C111282:dental polyglass; C034183:vinyl polysiloxane; D003776:Dental Porcelain; C016447:feldspar; D012823:Silicate Cement