Microtensile bond strength of a resin cement to glass infiltrated zirconia-reinforced ceramic: The effect of surface conditioning

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Amaral, Regina [UNESP]
Özcan, Mutlu
Bottino, Marco Antonio [UNESP]
Valandro, Luiz Felipe

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This study evaluated the effect of three surface conditioning methods on the microtensile bond strength of resin cement to a glass-infiltrated zirconia-reinforced alumina-based core ceramic. Thirty blocks (5×5×4 mm) of In-Ceram Zirconia ceramics (In-Ceram Zirconia-INC-ZR, VITA) were fabricated according to the manufacturer's instructions and duplicated in resin composite. The specimens were polished and assigned to one of the following three treatment conditions (n=10): (1) Airborne particle abrasion with 110 μm Al2O3 particles + silanization, (2) Silica coating with 110 μm SiOx particles (Rocatec Pre and Plus, 3M ESPE) + silanization, (3) Silica coating with 30 μm SiOx particles (CoJet, 3M ESPE) + silanization. The ceramic-composite blocks were cemented with the resin cement (Panavia F) and stored at 37 °C in distilled water for 7 days prior to bond tests. The blocks were cut under coolant water to produce bar specimens with a bonding area of approximately 0.6 mm2. The bond strength tests were performed in a universal testing machine (cross-head speed: 1 mm/min). The mean bond strengths of the specimens of each block were statistically analyzed using ANOVA and Tukey's test (α≤0.05). Silica coating with silanization either using 110 μm SiOx or 30 μm SiOx particles increased the bond strength of the resin cement (24.6±2.7 MPa and 26.7±2.4 MPa, respectively) to the zirconia-based ceramic significantly compared to that of airborne particle abrasion with 110-μm Al2O3 (20.5±3.8 MPa) (ANOVA, P<0.05). Conditioning the INC-ZR ceramic surfaces with silica coating and silanization using either chairside or laboratory devices provided higher bond strengths of the resin cement than with airborne particle abrasion using 110 μm Al2O3. © 2005 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.



Bond strength, Microtensile test, Silane coupling agent, Silica coating, Surface conditioning methods, Zirconia ceramics, Abrasion, Cements, Cooling water, Distilleries, Glass, Resins, Silanes, Zirconium, Ceramic products, aluminum oxide, glass, In Ceram Zirconia, In-Ceram Zirconia, methacrylic acid derivative, methacryloxypropyltrimethoxysilane, Panavia Fluoro, Panavia-Fluoro, resin, resin cement, Rocatec, silane derivative, silicon dioxide, tooth cement, water, zirconium, zirconium oxide, ceramics, chemistry, comparative study, dental bonding, dental surgery, human, materials testing, surface property, temperature, tensile strength, tooth brushing, tooth prosthesis, Air Abrasion, Dental, Aluminum Oxide, Ceramics, Composite Resins, Dental Bonding, Dental Cements, Dental Polishing, Dental Porcelain, Humans, Materials Testing, Methacrylates, Resin Cements, Silicon Dioxide, Surface Properties, Temperature, Tensile Strength, Water

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Dental Materials, v. 22, n. 3, p. 283-290, 2006.