Comparative Evaluation of Compressive, Flexural Strength and Micro Hardness of Different Dental Materials

The aim of this study was to measure and compare the mechanical properties of five commercially available dental materials. And also to ascertain proper materials for clinical treatment. Methods. Specimens for the study were prepared by the used of customized cylindrical teflon mould dimensioning 5mmx5mm for compressive strength, 5mm x 3mm for hardness and 25mm x 5mm for flexural strength were grouped with 4 specimens in each GroupI: Filtek Z350XT (Composite); Group Beutifill-II (Giomer); Group III: Ketak molar (RMGIC), Group IV: Zirconomer (Zirconia Reinforced Restorative). Using LED light curing was done. Compressive strength and flexural strength was evaluated using Universal testing machine, and Microhardness was measured on Vicker’s Microhardness Tester, Reichert Austria Make. Results. The obtained results revealed that the Composite Z-had the highest flexural strength followed by the Beutifill-II. Zirconomer had the least flexural strength than Compoglass and ketak molar respectively. Compoglass had highest compressive strength whereas Zirconomer had least compressive strength. Again Compoglass showed highest Microhardness followed by Z350. Significance. On the mechanical characterization of some dental materials, the collected data from one-way ANOVA followed by Tukey's Kramer poc hoc test suggested that the mechanical properties of composite Z-350 showed statistically significant difference in Flexural property as compared to the others specimens. Meanwhile, Compoglass was found to be more prominent in micro-hardnessnalysis.