Effect of different laser surface treatment on microshear bond strength between zirconia ceramic and resin cement

Autor: Hassan Torabzadeh, Ardalan Nateghifard, Afshin Nateghifard, Amir Ghasemi, Reza Razi, Vagharaldin Akhavan Zanjani, Hadi Ahmadi, Farnaz Alikhani, Maryam Abdoh Tabrizi
Rok vydání: 2014
Předmět:
Zdroj: Journal of investigative and clinical dentistry. 6(4)
ISSN: 2041-1626
Popis: Aim The purpose of this study was to evaluate the effect of sandblasting, carbon dioxide (CO2), and erbium,chromium:yttrium-scandium-gallium-garnet (Er,Cr:YSGG) lasers on the microshear bond strength of zirconia to resin cement. Methods Sixty-one sintered yttria stabilized tetragonal zirconia blocks (10 × 5 × 2 mm) were prepared and divided into four experimental groups (n = 15); one sample was retained as a control. The samples were treated by aluminium oxide air abrasion, CO2 4 W, Er,Cr:YSGG 3W, and Er,Cr:YSGG 2W, respectively. One sample from each group and the control sample were analyzed by scanning electron microscope. Panavia F2.0 resin microcylinders were prepared and placed on treated surfaces, light cured, and incubated for 48 h. Microshear bond strength testing was done by a microtensile tester machine, and the type of bond failures were determined by stereomicroscope. Data were analyzed by one-way anova and Tukey's test at a significance level of P
Databáze: OpenAIRE