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Analysis Study Research Paper | Dentistry | Egypt | Volume 11 Issue 4, April 2022
Microleakage of Different Restorative Materials in Class V Restorations: In-Vitro Study
Mohamed Abuzaid | Hamdi Hamama
Abstract: Microleakage is a major factor contributing in the occurrence of secondary carious lesions around restorations. This study aimed to evaluate the microleakage around class V restorations using different restorative materials. In this in vitro study, 32 standardized class V cavities were prepared on buccal and lingual surfaces of 16 human teeth (extracted within a period of 6 months) using bevelled conventional preparation, where occlusal margin was located at the enamel and cervical margin at the cementum/dentin level. Specimens were randomly divided into 4 groups (N= 8) for restoration with (A) GC Fuji II LC (Resin modified glass ionomer) (B) Prime&Bond universal + SDR plus (Smart dentin replacement) (C) FuturaU Bond + Admira Fusion Flow (Ormocer-based nanohybrid flowable composite) (D) Palfique universal bond + Palfique universal flow. After being stored in distilled water and finished, teeth were immersed for 24 hours in 2% methylene blue dye. Teeth were sectioned bucco-lingually and dye penetration on occlusal and cervical margins was scored using a stereomicroscope. The results were analyzed using Chi square test and Kruskal-wallis test (? = 0.05). There was statistical significant difference between microleakage at occlusal margin and at the cervical margin (p < 0.001). None of the four different groups of restorative materials completely sealed the tooth/restoration interface at the cervical margin showing no statistical significant difference in microleakage (p = 0.054), while there was a statistical significant difference between the different materials at the occlusal margin (p = 0.024). When comparing different restorative materials in Class V cavities, the cervical margins, where adhesion is between restorative material and dentin/cementum, showed the greatest scores in microleakage (1).
Keywords: Flowable composite, microleakage, resin modified glass ionomer, class V restorations
Edition: Volume 11 Issue 4, April 2022,
Pages: 720 - 724