Computational Evaluation of Dental Adhesive for Four Direct Restorative Procedures

Abstract

Direct restoration is recovering the damaged tooth within the mouth by filling the cavity on the tooth using filling material. Therefore, the filling material and location of a cavity are essential in determining the durability of the restored part. This study aims to determine the stress distribution in the teeth using finite element analysis (FEA) with lithium disilicate as a filling material. The binding strength created between tooth enamel and lithium disilicate is different for each restoration class with varying locations of a cavity. In this study, ANSYS Engineering Simulation Software was employed to analyze the stress distribution for four types of classes of direct restoration (class 1, 2, 5, and 6). The analyses were made by applying vertical force on the tooth crown with 600N magnitude. The results show class 1 was 121.2 MPa which is the lowest maximum von mises stress value. The results obtained are beneficial to increase the understanding of the behavior of lithium disilicate as a filling material and the quality of tooth restoration.