Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study.

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dc.contributor.authorKumar, Ashok A
dc.contributor.authorHariharavel, VP
dc.contributor.authorNarayanan, Ashwin
dc.contributor.authorMurali, S
dc.date.accessioned2015-06-24T08:07:12Z
dc.date.available2015-06-24T08:07:12Z
dc.date.issued2015-03
dc.description.abstractAim: The aim of the study was to evaluate the microleakage on the marginal integrity of nanohybrid composite during bleaching with carbamide peroxide after applying a protective coating of G‑Coat plus (GC, Japan). Materials and Methods: Class V cavities were prepared and restored with nanohybrid composite restoration in 60 freshly extracted noncarious premolars extracted for orthodontic reasons. Then they were divided into 3 groups. Group 1 ‑ bleaching with carbamide peroxide without G coat plus (n = 20), Group 2 ‑ bleaching with carbamide peroxide with G‑Coat plus (n = 20), Group 3 ‑ without bleaching procedure (n = 20) (control group). In Group 2, G coat plus was applied over the restorative surface and margins. Then all teeth in Groups 1 and 2 were taken and mounted in dental stone. Bleaching trays were custom fabricated over the cast with the help of a heated vacuum‑forming machine. 10% carbamide peroxide (opalescence PF) was applied over the tooth, and the bleaching process was done for about 2 weeks. Then all samples underwent thermocycling and were then immersed in the 2% methylene blue solution for 24 h and observed under a stereomicroscope to evaluate the amount of dye penetration. Data were compared using Kruskal–Wallis test and Mann–Whitney test using SPSS Inc.; Chicago, IL, USA, Version 17.0. Results: Mann–Whitney test shows that the difference in microleakage between Group 1–Group 2 and Group 2–Group 3 is statistically significant (P < 0.05). Conclusion: Significant reduction in microleakage was seen in Group 2 when compared to other groups.en_US
dc.identifier.citationKumar Ashok A, Hariharavel VP, Narayanan Ashwin, Murali S. Effect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study. Indian Journal of Dental Research. 2015 Mar-Apr; 26(2): 167-169.en_US
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/158285
dc.language.isoenen_US
dc.source.urihttps://www.ijdr.in/article.asp?issn=0970-9290;year=2015;volume=26;issue=2;spage=167;epage=169;aulast=Kumaren_US
dc.subjectBleachingen_US
dc.subjectG coat plusen_US
dc.subjectmicroleakageen_US
dc.subjectnanohybrid compositeen_US
dc.subject.meshComposite Resins
dc.subject.meshGlass Ionomer Cements
dc.subject.meshPeroxides
dc.subject.meshSurface Properties
dc.subject.meshTooth Bleaching Agents
dc.subject.meshUrea --analogs & derivatives
dc.titleEffect of protective coating on marginal integrity of nanohybrid composite during bleaching with carbamide peroxide: A microleakage study.en_US
dc.typeArticleen_US
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