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KMID : 1004520100260030311
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Journal of Dental Rehabilitation and Applied Science
2010 Volume.26 No. 3 p.311 ~ p.322
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Shear Bond Strength of Resin Cements on the IPS e.max Press
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Lee Kyung-Eun
Kim Yu-Lee
Shin Chang-Yong
Dong Jin-Keun
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Abstract
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The purpose of this study was to evaluate the bond strengths between IPS e.max Press and four different types of resin
cements that often used for esthetic restoration. Disc shaped IPS e.max Press blocks(N=40, diameter: 12mm, thickness: 3mm) were fabricated according to the manufacture’s instruction and cleaned with ultrasonic cleaner. They were embedded into an autopolymerizing acrylic resin. Fourty cylinder shaped resin block(Filtek Z350, diameter: 4.5mm, thickness: 3mm) were fabricated using a plastic tube. Each specimens were randomly divided into 4 experimental group and bonded each other using 4 different resin cements(Variolink II(light-cure), Variolink II(dual-cure), Calibra, Super-Bond C&B) according to the manufactures’ recommendations. All the specimens were stored in normal saline at 37℃ for 24 hours before test. Universal testing machine at a crosshead speed of 1mm/min was used to evaluate the shear bond strength. The data were statistically analyzed using one-way ANOVA(P<.01). Multiple comparison was done by the Tukey HSD test. The shear bond strength of Super-Bond C&B to e.max was significantly lower than those of Calibra, Variolink
II(light-cure), Variolink II(dual-cure) (P<.01). The shear bond strength of Calibra, Variolink II(light-cure), Variolink
II(dual-cure) to e.max were not significantly different. The shear bond strengths of light-cure/dual-cure cement were higher than that of self-cure cement.
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KEYWORD
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shear bond strength, light-cure cement, dual-cure cement, self-cure cement
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