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KMID : 1004520150310010001
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Journal of Dental Rehabilitation and Applied Science
2015 Volume.31 No. 1 p.1 ~ p.9
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Evaluation of mechanical properties of several dual-cure resin cements by curing modes
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Kim Soo-Yeon
Park Se-Hee
Kim Jin-Woo
Cho Kyung-Mo
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Abstract
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Purpose: The purpose of this study was to evaluate the mechanical properties of several dual-cure cements by different curing modes.
Materials and Methods: One resin-modified glass ionomer cement (FujiCEM 2), two conventional dual-cure resin cements (RelyX ARC, Multilink N), and two dual-cure self-adhesive resin cements (RelyX U200, G-CEM LinkAce) were used. To evaluate the influence of the curing methods, each cements divided into four conditions (n = 20); Condition 1: self-curing for 10 minutes, Condition 2: immediate after 20 seconds light-curing, Condition 3: 24 hours after self-curing, Condition 4: 24 hours after lightcuring. The compressive strength and diametral tensile strength were measured with a universal testing machine. All data were statistically analyzed using t-test, one-way ANOVA and Scheffe’s test.
Results: The results showed the compressive strength and diametral tensile strength after 24 hours in all curing modes were higher than immediate except RelyX ARC light-cured and Multilink N light-cured. The FujiCEM 2 showed lowest values (P < 0.05).
Conclusion: The outcome was cement-depend, but there is no significant difference about compressive strength and diametral tensile strength between dual-cure self-adhesive resin cements and conventional resin cements. And this result will be used as a base line data selecting resin cement for favorable long-term prognosis.
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KEYWORD
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resin cement, dual-cure, self-adhesive, compressive strength, diametral tensile strength, curing modes
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