Valandro, Luiz Felipe [UNESP]Özcan, MutluAmaral, Regina [UNESP]Leite, Fabiola Pessoa Pereira [UNESP]Bottino, Marco Antonio [UNESP]2014-05-272014-05-272007-01-01International Journal of Prosthodontics, v. 20, n. 1, p. 70-72, 2007.0893-2174http://hdl.handle.net/11449/69506Purpose: This study compared the microtensile bond strength of resin-based cement (Panavia F) to silica-coated, silanized, glass-infiltrated high-alumina zirconia (In-Ceram Zirconia) ceramic in dry conditions and after various aging regimens. Materials and Methods: The specimens were placed in 1 of 4 groups: group 1: dry conditions (immediate testing without aging); group 2: water storage at 37°C for 150 days; group 3: 150 days of water storage followed by thermocycling (× 12,000, 5°C to 55°C); group 4: water storage for 300 days; group 5: water storage for 300 days followed by thermocycling. Results: Group 1 showed a significantly higher microtensile bond strength value (26.2 ± 1 MPa) than the other aging regimens (6.5 ± 1, 6.2 ± 2, 4.5 ± 1, 4.3 ± 1 MPa for groups 2, 3, 4, and 5, respectively) (P < .01). Conclusion: Satisfactory results were seen in dry conditions, but water storage and thermocycling resulted in significantly weaker bonds between the resin cement and the zirconia.70-72engIn Ceram ZirconiaIn-Ceram ZirconiaPanavia FluoroPanavia-Fluororesin cementunclassified drugwaterchemistryconference paperheattensile strengthtimetooth prosthesisDental PorcelainHeatResin CementsTensile StrengthTime FactorsWaterTrabalho apresentado em eventoWOS:000244082000013Acesso aberto2-s2.0-338473623019234456003563666