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KMID : 0362320100350020106
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Journal of Korean Academy of Operative Dentistry
2010 Volume.35 No. 2 p.106 ~ p.115
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MICROTENSILE BOND STRENGTH OF SELF-ETCHING AND SELF-ADHESIVE RESIN CEMENTS TO DENTIN AND INDIRECT COMPOSITE RESIN
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Park Jae-Gu
Kim Il-Shin
Cho Young-Gon
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Abstract
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The purpose of this study was to evaluate the microtensile bond strength (), failure modes and bonding interfaces of self-etching and three self-adhesive resin cements to dentin and indirect composite resin. Cylindrical composite blocks (Tescera, Bisco Inc.) were luted with resin cements (PA: Panavia F 2.0, Kuraray Medical Inc., RE: RelyX Unicem Clicker, 3M ESPE., MA: Maxem, Kerr Co., BI: BisCem, Bisco Inc.) on the prepared occlusal dentin surfaces of 20 extracted molars. After storage in distilled water for 24 h, composite-dentin beams were prepared. was tested at a cross-head speed of 0.5 mm/min. Data were analyzed with one-way ANOVA and Tukey’s HSD test. Dentin sides of all fractured specimens and interfaces of resin cements-dentin or resin cements-composite were examined at FESEM (Field Emission-Scanning Electron Microscope). In conclusion, PA and RE showed higher bond strength and closer adaptation than MA and BI when indirect composite blocks were luted to dentin using a self-etching and three self-adhesive resin cements.
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KEYWORD
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Microtensile bond strength, Self-etching resin cement, Self-adhesive resin cement, Dentin, Indirect composite resin
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