Bottino, Marco Antonio [UNESP]Valandro, Luiz Felipe [UNESP]Scotti, RobertoBuso, Leonardo [UNESP]2014-05-272014-05-272005-01-01International Journal of Prosthodontics, v. 18, n. 1, p. 60-65, 2005.0893-2174http://hdl.handle.net/11449/68104Purpose: This study tested the hypothesis that the tribochemical silica coating on ceramic surfaces increases the bond strength of resin cement to a glass-infiltrated zirconium-based ceramic. Materials and Methods: Fifteen blocks of In-Ceram Zirconia from CEREC InLab (5 per group) and 15 composite blocks (Z-250) 5 mm x 5 mm x 4 mm were made. The ceramic surfaces were polished, and the blocks were divided into three groups: (1) airborne abrasion with 110-μm aluminum oxide particles; (2) Rocatec system, tribochemical silica coating; and (3) CoJet system, tribochemical silica coating. The ceramic blocks were cemented to the composite blocks using Panavia F according to the manufacturer's specifications. All samples were stored in 37°C distilled water for 7 days and later sectioned in two axes using a diamond disk under cooling to obtain specimens with a cross-sectional area of approximately 1 mm2 (n = 45). Each specimen was then attached with cyanoacrylate glue to an adapted device for the microtensile test, which was carried out on a universal testing machine. Results: The results were subjected to ANOVA and Tukey's test. Group 2 (23.0 ± 6.7 MPa) and group 3 (26.8 ± 7.4 MPa) showed greater bond strength than group 1 (15.1 ± 5.3 MPa). There was no significant difference between groups 2 and 3. All failures were in the adhesive zone. Conclusion: The hypothesis was confirmed - the tribochemical systems increased the bond strength between Panavia F and In-Ceram Zirconia.60-65engadhesive agentaluminum oxidecyanoacrylatediamondresin cementsilicon dioxidezirconiumanalysis of variancecementationdental bondingmaterial coatingstrengthtemperature measurementAir Abrasion, DentalAluminum OxideAnalysis of VarianceComposite ResinsDental BondingDental CementsDental PorcelainDental Stress AnalysisFrictionMaterials TestingResin CementsSilicon DioxideStatistics, NonparametricSurface PropertiesTensile StrengthArtigoWOS:000226698100010Acesso restrito2-s2.0-134443105829234456003563666