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http://dx.doi.org/10.5395/JKACD.2006.31.4.282

EFFECT OF RESIN SEALANTS ON THE REDUCTION OF MICROLEAKAGE IN COMPOSITE RESTORATIONS  

Cho Young-Gon (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Kim Mun-Hong (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Lee Myung-Goo (Department of Conservative Dentistry, College of Dentistry, Chosun University)
Publication Information
Restorative Dentistry and Endodontics / v.31, no.4, 2006 , pp. 282-289 More about this Journal
Abstract
The purpose of this study was to compare the ability of three resin surface sealants to prevent microleakage in Class V composite resin restorations. Forty Class V cavities with the occlusal margin in enamel and gingival margin in dentin were prepared on the buccal surfaces of sound extracted molars, and restored with composite resin. Restorations were randomly assigned into one of four equal groups (n = 10): a control group, without resin sealing, and three experimental groups in which margins were sealed with Fortify Plus, Biscover and Permaseal, respectively. Specimens were thermocycled, immersed in a 2% methylene blue solution for 4 hours, sectioned longitudinally, and observed the leakage at the occlusal and gingival margins. The result was analyzed using Kruskal-Wallis test, Mann-Whitney test and Wilcoxon signed rank test. In conclusion, the ability to reduce microleakage at occlusal margins was similar in all of three sealants. However at gingival margin, it depended on the type of used resin surface sealant. At gingival margin. control and Fortify Plus group showed statistically higher microleakage than PermaSeal group. and Fortify Plus group also showed higher microleakage than BisCover group (p < 0.05).
Keywords
Resin surface sealants; Microleakage; Composite resin restorations; Class V cavities; Occlusal margins; Gingival margin;
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