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The Scientific World Journal
Volume 2013 (2013), Article ID 426134, 7 pages
http://dx.doi.org/10.1155/2013/426134
Research Article

How Can Stress Be Controlled in Endodontically Treated Teeth? A 3D Finite Element Analysis

Department of Restorative Dentistry, Faculty of Dentistry, Gazi University, 06510 Emek, Ankara, Turkey

Received 30 May 2013; Accepted 29 June 2013

Academic Editors: C. H. Pameijer and N. Tanoue

Copyright © 2013 İhsan Yıkılgan and Oya Bala. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The aim of this study was to analyze the stresses that develop by oblique and vertical forces in endodontically treated maxillary second premolars that were restored with resin composite. Additionally, in our study the effects of the different restorative approaches and use of different base materials on stress formation were analyzed using three-dimensional finite element stress analysis. For restoration, the models representing both cusp capping, palatinal cusp capping, standard MOD restoration, and use of woven fiber in occlusal part were prepared. In all models, oblique forces caused more stress than did vertical forces. Materials with low elastic moduli cause high amounts of stress, whereas materials with elastic moduli similar to that of dental tissues cause low amounts of stress. Additional approaches such as cusp capping, functional cusp capping, and woven fiber use do not affect stress formation on the tooth after endodontic treatment.