The purpose of this finite element analysis (FEA) is to evaluate and compare the stress distributions at the permanent molars and restorative materials according to the material used. Materials and Methods: Three dimensional Finite Element Analysis was used to compare Stress distribution generated in Class II MOD lesion using different restorative materials. Results: Software performs a series of calculations and mathematical equations and yields the simulation result. The models was restored with three different restorative material which was subjected to a force of 600 N load. Von-Mises Stress were analyzed and compared in different materials. From the results of the study, it can be concluded that Amalgomer CR performed best followed by Zirconomer and GIC (Fuji IX). Conclusion: Restoration of Class II MOD lesions with materials of higher modulus of elasticity will enable better stress distribution.