Effect of Surface Treatment and Resin Cement on Microtensile Bond Strength of Zirconia to Dentin

Abstract:

To evaluate the effect of three surface treatments and two resin cements on microtensile bond strength of zirconia to dentin. Sixty human molars were embedded in acrylic resin and sectioned 3 mm below the occlusal plane. Teeth specimens and sixty zirconia specimens were randomized into 3 groups according to the following surface treatments (n=20): no treatment (control), sandblasting and silane application (SB+SI), sandblasting then silica coating and silane application (SB+SC+SI). In each group, half of the ceramic-tooth assemblies were cemented with PanaviaTM F (Kurary Dental), the rest with RelyX Unicem (3M ESPE). All specimens were cut into microtensile sticks that were loaded in tension until failure. Data were analyzed using two-way ANOVA and Tukey’s HSD test (α=0.05). The SB+SC+SC group presented higher values than SB+SI and the control group (P<0.05). Bond strength in PanaviaTM F groups were significantly higher than those in RelyX Unicem regardless of the surface treatment (P<0.05). Data indicated that both surface treatment and resin cement have significant effects on bond strength of zirconia to dentin.

• Periodical: Key Engineering Materials (Volumes 602-603)
• Pages: 602-605
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.602-603.602
• Online since: March 2014
• Authors: Xiao Li Feng, Ruo Yu Liu, Yan Li Zhang, Liang Jiao Chen, Yao Kun Zhang, Long Quan Shao*
• Keywords: Bond Strength, Resin Cement, Surface Treatment, Zirconia

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