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ORIGINAL RESEARCH Table of Contents   
Year : 2015  |  Volume : 26  |  Issue : 3  |  Page : 284-288
Correlation between the cytotoxicity of self-etching resin cements and the degree of conversion


Department of Restorative Dentistry, Federal University of Minas Gerais, Belo Horizonte, Brazil

Correspondence Address:
Maria E Cortés
Department of Restorative Dentistry, Federal University of Minas Gerais, Belo Horizonte
Brazil
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Source of Support: Nil, Conflict of Interest: None


DOI: 10.4103/0970-9290.162878

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Aim: The aim of this study was to evaluate the correlation between the cytotoxicity and degree of conversion (DC) of self-etch resin cements with or without photopolymerization. Materials and Methods: Three self-etching resin cements with or without photopolymerization were evaluated. Six test groups and one control group represented by a standardized L929-fibroblast cell culture were formed. The DC was measured by Fourier transform infrared spectrometry and was correlated with cell culture survival. Statistical Analysis: The analysis of variance and Bonferroni–Holm tests were applied (P < 0.05). Results:The results show that, the cytotoxicity of self-etching resin cements is directly related to the DC. With the exception of Unicem, the other cements show some level of cytotoxicity, even with photopolymerization. Conclusion: These results indicate that photopolymerization of dual cure self-etching resin cements decrease toxic effects on cell culture. Adequate photopolymerization should be considered during cementation when using dual polymerization self-etching resin cements.


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