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2018, 30(1): 1-8 Back to browse issues page
Comparative Evaluation of microleakage of Bulk-fill and Posterior Composite Resins Using the Incremental Technique and a Liner in Cl II Restorations
Samaneh Doustfateme , Kazem Khosravi , Somayeh Hosseini
Assistant Professor, Department of Operative Dentistry, Dental Materials Research Center, School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran , somayehoseini@yahoo.com
Abstract:   (373 Views)
Comparative Evaluation of microleakage of Bulk-fill and Posterior Composite Resins Using the Incremental Technique and a Liner in Cl II Restorations Abstract Background and Aim: In recent years there has been a surge in the use of tooth-colored restorations. However, the polymerization shrinkage of these materials can form gaps, resulting in microleakage. This study aimed to compare microleakage by using different materials and techniques. Materials and Methods: In this experimental study, Cl II cavities were prepared on the mesial surfaces of 60 sound human third molars. The teeth were randomly divided into five groups (n=12): Group 1 were filled with Surefil posterior composite using the oblique incremental technique. In group 2 Surefil SDR flowable composite was placed at the base of cavities followed by filling the cavity with Surefil posterior composite. Specimens in group 3 were restored only with Surefil SDR flowable composite resin in two steps, and in group 4, a layer of G-aenial Universal flow composite with 1 mm thickness was placed as the liner and the rest of the cavity filled with the Surefil posterior composite using the oblique incremental technique. Group5 benefited from snow plow technique using G-aenial Universal flow and Surefil posterior composite. Samples thermocycled and placed in 0.5% fuchsine solution for 24 hours. The teeth were evaluated under a stereomicroscope for the deepest dye penetration. Kruskal-Wallis and Mann-Whitney tests were used for analysis of data. Results: The highest frequencies of scores 1 and zero were recorded in the group 5 which indicating the least microleakage in this group. Conclusion: G-aenial Universal Flo composite resin with the snow plow technique resulted in a significant decrease in the microleakage.
Keywords: Composite Resins, Dental leakage, Dental Cavity Lining, Polymerization
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Type of Study: Orginal | Subject: Restorative Dentistry
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Doustfateme S, Khosravi K, Hosseini S. Comparative Evaluation of microleakage of Bulk-fill and Posterior Composite Resins Using the Incremental Technique and a Liner in Cl II Restorations. Journal of Islamic Dental Association of IRAN (JIDA) . 2018; 30 (1) :1-8
URL: http://jidai.ir/article-1-1942-en.html


Volume 30, Issue 1 (1-2018) Back to browse issues page
Journal of Islamic Dental Association of Iran

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