title: Luting of CAD/CAM ceramic inlays: direct composite versus dual-cure luting cement.
abstract: The aim of this study was to investigate bonding effectiveness in direct restorations. A two-step self-etch adhesive and a light-cure resin composite was compared with luting with a conventional dual-cure resin cement and a two-step etch and rinse adhesive. Class-I box-type cavities were prepared. Identical ceramic inlays were designed and fabricated with a computer-aided design/computer-aided manufacturing (CAD/CAM) device. The inlays were seated with Clearfil SE Bond/Clearfil AP-X (Kuraray Medical) or ExciTE F DSC/Variolink II (Ivoclar Vivadent), each by two operators (five teeth per group). The inlays were stored in water for one week at 37°C, whereafter micro-tensile bond strength testing was conducted. The micro-tensile bond strength of the direct composite was significantly higher than that from conventional luting, and was independent of the operator (P<0.0001). Pre-testing failures were only observed with the conventional method. High-power light-curing of a direct composite may be a viable alternative to luting lithium disilicate glass-ceramic CAD/CAM restorations.
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.|Division of General Dentistry, Department of Clinical Oral Health Science, Tokyo Dental College, Tokyo, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kameyama
authors.affiliation: Section of Operative Dentistry, School of Dentistry, Oral Pathology and Maxillo-facial Surgery, KU Leuven (University of Leuven), Leuven, Belgium.
authors.forename: Kim
authors.initials: K
authors.lastname: Bonroy
authors.affiliation: Section of Operative Dentistry, School of Dentistry, Oral Pathology and Maxillo-facial Surgery, KU Leuven (University of Leuven), Leuven, Belgium.
authors.forename: Caroline
authors.initials: C
authors.lastname: Elsen
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.|Department of Conservative Dentistry, Periodontology and Preventive Dentistry, Hannover Medical School, Hannover, Germany.
authors.forename: Anne-Katrin
authors.initials: AK
authors.lastname: Lührs
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.|Department of Dentistry, Toranomon Hospital, Tokyo, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Suyama
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.
authors.forename: Marleen
authors.initials: M
authors.lastname: Peumans
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.
authors.forename: Bart
authors.initials: B
authors.lastname: Van Meerbeek
authors.affiliation: KU Leuven BIOMAT, Department of Oral Health Sciences, Biomedical Sciences Group, KU Leuven (University of Leuven), Leuven, Belgium.
authors.forename: Jan
authors.initials: J
authors.lastname: De Munck
mesh_terms: D000268:Adhesiveness; D002516:Ceramics / Q000737:chemistry*; D017076:Computer-Aided Design; D003738:Dental Cements / Q000138:chemical synthesis* / Q000737:chemistry*; D017267:Dental Prosthesis Design; D003799:Dental Stress Analysis; D019544:Equipment Failure Analysis; D006244:Hardness; D006801:Humans; D066298:In Vitro Techniques; D007284:Inlays / Q000295:instrumentation*; D055115:Light-Curing of Dental Adhesives / Q000379:methods; D008422:Materials Testing; D008963:Molar / Q000737:chemistry* / Q000601:surgery; D013314:Stress, Mechanical; D013718:Tensile Strength
chemical_list: D003738:Dental Cements
keywords: Micro-tensile bond strength; ceramic inlay; computer-aided design/computer-aided manufacturing (CAD/CAM); luting cement; self-etch