title: Influence of contamination on zirconia ceramic bonding.
abstract: The removal of contaminants prior to the bonding of ceramics is critical for the clinical success of a long-term durable resin bond. This study tested the null hypotheses that there are no contaminants on the zirconia ceramic surface left after try-in simulation, and there are no influences of contamination and cleaning methods on zirconia ceramic bonding durability with 10-methacryloyloxy-decyl dihydrogenphosphate-containing composite resins. After saliva immersion and the use of a silicone disclosing agent, airborne-particle-abraded ceramic specimens were cleaned with acetone, 36% phosphoric acid, additional airborne-particle abrasion, or only water spray. Chemical analyses of specimen surfaces were performed by x-ray photoelectron spectroscopy. The influences of contamination and cleaning methods on ceramic bond durability were examined by tensile testing after 3 or 150 days' water storage with 37,500 thermal cycles. Contamination, existing after try-in simulation as confirmed by chemical analysis, significantly reduced zirconia ceramic-resin bonds. Airborne-particle abrasion may be the most effective cleaning method.
authors.affiliation: Department of Prosthodontics, Propaedeutics and Dental Materials, Christian-Albrechts University at Kiel, Arnold-Heller-Str. 16, 24105 Kiel, Germany.
authors.forename: B
authors.initials: B
authors.lastname: Yang
authors.forename: S
authors.initials: S
authors.lastname: Wolfart
authors.forename: M
authors.initials: M
authors.lastname: Scharnberg
authors.forename: K
authors.initials: K
authors.lastname: Ludwig
authors.forename: R
authors.initials: R
authors.lastname: Adelung
authors.forename: M
authors.initials: M
authors.lastname: Kern
mesh_terms: D003666:Decontamination / Q000379:methods; D001840:Dental Bonding; D003776:Dental Porcelain; D003799:Dental Stress Analysis; D004577:Electron Probe Microanalysis; D008689:Methacrylates; D008855:Microscopy, Electron, Scanning; D019279:Resin Cements / Q000737:chemistry; D012463:Saliva; D018709:Statistics, Nonparametric; D013499:Surface Properties; D013718:Tensile Strength; D015040:Zirconium
chemical_list: D008689:Methacrylates; D019279:Resin Cements; D003776:Dental Porcelain; C069749:methacryloyloxydecyl dihydrogen phosphate; D015040:Zirconium; C028541:zirconium oxide