The Journal of the Japanese Society for Dental Materials and Devices
Online ISSN : 2188-4188
Print ISSN : 0286-5858
ISSN-L : 0286-5858
Original Articles
Weibull Analysis in Bond Strength of Dual-cured Adhesive Resin Cement to Ceramic at Different Light Intensities
Muneaki HONDA, Yoshiaki HASEGAWA, Jun OMATSU, Yuko NAGASAWA, Atsushi YAMAZAKI, Atsushi HARASHIMA, Yoko TAKAHASHI, Taniichiro YAMAGA, Yasushi HIBINO, Hiroshi NAKAJIMA
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Keywords: Resin cement, Bond strength, Porcelain, Light intensity, Weibull analysis
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2007 Volume 26 Issue 1 Pages 58-66

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Abstract
The effect of light intensity on the Weibull moduli of the bond strength of resin cements to ceramic was examined. Cement rods of two dual-cured resin cements [Panavia F 2.0 (Kurarey, A), Bistite II (Tokuyama Dental, B)] were bonded to ceramic plates using a halogen light-curing unit at an intensity of 300 or 800mW/cm². Non-irradiated specimens served as controls. The shear bond strengths (n=12 each) of the cements were determined at 10 minutes and 24 hours after preparation and their Weibull moduli for bond strength data were calculated. The Weibull moduli for cement A noticeably increased at 800mW/cm². A trend was seen in cement B whereby Weibull moduli decreased as time elapsed. Depending upon the products, light irradiation appeared to reduce dispersion of the bond strength data at the initial stage of ceramic bonding.
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© 2007 The Japanese Society for Dental Materials and Devices
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