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Background: Microleakage is defined as the passage of bacteria, fluid, molecules or ions between the cavity walls and restorative material. There are limited studies in the literature that have compared the microleakage of the newer restorative materials. Therefore, the aim of this study is to compare and evaluate microleakage in Class II cavity in primary molars restored with glass ionomer cement, zirconomer and cention N using stereomicroscope. Method: Standardized Class II cavities were prepared on the extracted primary molars All the prepared samples were divided into 3 experimental groups and were restored as follows: Group I- GIC (GC Universal Restorative); Group II- Zirconomer (SHOFU Inc., Kyoto, Japan) and Group III- Cention-N (Ivoclar Vivadent). The restored teeth were thermocycled, immersed in methylene blue dye and sectioned along the mesiodistal direction. The dye penetration at the occlusal surface and cervical surface was evaluated and compared using a stereo-microscope. Data was analysed using Krushal-Wallis test (Non-parametric ANOVA). Results: Among the three restorative materials, Cention N as compared to GIC and Zirconomer showed least microleakage at both the occlusal surface and cervical surface. Conclusion: Cention N a newer restorative material displayed lesser microleakage as compared to GIC and Zirconomer.

avicenna journal of dental research

Comparative Evaluation of Microleakage in Class II Cavity in Primary Molars Restored With Glass Ionomer Cement, Zirconomer, and Cention N Using Stereomicroscope: An In Vitro Study