Aditya Arinta Putra, - and Ruslan Effendy, - and Devi Eka Yuniarti, - (2018) Microleakage Differences on Composite Resin Restoration with and without Nanohybrid Flowable Composite Resin as a Surface Sealant. Journal of International Dental and Medical Research.

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Abstract

Polymerization shrinkage occurred in composite resin restoration during the polymerization process. Polymerization shrinkage may cause microleakage in the middle of restoration margin and resulting in bacteria, debris, ion, and molecule penetration in margin of composite resin restoration. Secondary caries, pulpal sensitivity, restoration crack, and pulpal irritation are some complications of polymerization shringkage. Surface sealant application on composite restoration surface prevents microleakage. Surface sealant with nanohybrid filler is fine preference to prevents microleakage due to its physical properties and a good wear resistance. The aim of this study is to analyze of nanohybrid flowable composite resins as a surface sealant on microleakage score in composite resin restoration. Upper premolar teeth (n=16) with class I cavity were divided into two groups. Group 1 was treated with packable composite restoration without surface sealant application. Group 2 was treated with packable composite restoration with nanohybrid flowable composite as a surface sealant. All groups immersed in 0.5% of methylene blue solution for 24 hours and then rinsed with water and separated bucco-lingualy with carbondurum disc. Afterward, each section assessed for dye penetration to represent microleakage by using a scoring method under a digital microscope. Data were collected and statistically analyzed using Man Whitney. The restoration with nanohybrid flowable composite surface sealant application shows a significant difference between group 1 and group 2 (p<0,05). Nanohybrid flowable composite surface sealant shows a significant result to decrease microleakage score in resin composite restoration.

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