Evaluation of the Microleakage of Glass Ionomer and Resin Sealant Interface in Conservative Adhesive Restoration (CAR): An In Vitro Study

Heidari, AliReza and Ghadimi, Sara and Mosharafian, Shahram and Ansari, Hossein and Ghonodi, Elnaz (2010) Evaluation of the Microleakage of Glass Ionomer and Resin Sealant Interface in Conservative Adhesive Restoration (CAR): An In Vitro Study. Journal of Mashhad Dental School, 34 (2). pp. 117-124.

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Abstract

Introduction:Glass ionomer is used in conservative adhesive restoration (CAR) in order to release floride. The purpose of this study was to evaluate the microleakage of glass ionomer and fissure sealant interface in in vitro conservative adhesive restorations (CAR). Materials & Methods: In this in vitro experimental study, a cavity with diameters of 5 and 3mm and depth of 1 mm was prepared in the buccal surface of 21 human’s intact premolar teeth. The prepared cavities were filled with glass ionomer and cured. Then another groove with diameter of 5mm×0.5mm×0.5mm was prepared adjacent to and in touch with the first box and filled with fissure sealant and cured. In the lingual surface of each tooth, a cavity with diameter of 3mm×3mm and depth of 1 mm was prepared and filled with flowable composite and cured. Another groove with diameter of 3mm×0.5mm was prepared and filled with fissure sealant and cured. Next, the teeth were subjected to thermolcycling (1000 cycle at 5 to 55 ºc and then immersed in a fuschine solution for 24 hours. After that, rate of color penetration between glass-sealant, glass-tooth, sealant-tooth, and composite-tooth was evaluated with stereomicroscope after being buccolingually sectioned. Results were statistically analysed using the Friedman and Wilcoxon tests. Results:The rate of microleakage between glass-tooth was greater than glass-sealant and also the microleakage between glass-sealant was greater than the microleakage between composite-tooth and composite-sealant. The microleakage between composite-sealant was less than the others. Conclusion: According to the results of this study, it is better to use composite instead of glass ionomer in conservative resin restorations.

Item Type: Article
Subjects: WU Dentistry. Oral surgery
Divisions: Journals > Journal of Mashhad Dental School
Depositing User: jmds jmds
Date Deposited: 23 Sep 2017 14:56
Last Modified: 23 Sep 2017 14:56
URI: http://eprints.mums.ac.ir/id/eprint/2783

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