Table of Contents
Anatomy Research International
Volume 2014, Article ID 174028, 9 pages
http://dx.doi.org/10.1155/2014/174028
Research Article

Photoelastic and Finite Element Analyses of Occlusal Loads in Mandibular Body

1Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil
2Department of Morphology, Anatomy Area, Piracicaba Dental School, UNICAMP, Limeira Avenue 901, P.O. Box 52, 13414903 Piracicaba, SP, Brazil

Received 16 June 2014; Revised 22 August 2014; Accepted 3 September 2014; Published 8 October 2014

Academic Editor: Friedrich Paulsen

Copyright © 2014 Ana Cláudia Rossi et al. 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

This study proposed to evaluate the mandibular biomechanics in the posterior dentition based on experimental and computational analyses. The analyses were performed on a model of human mandible, which was modeled by epoxy resin for photoelastic analysis and by computer-aided design for finite element analysis. To standardize the evaluation, specific areas were determined at the lateral surface of mandibular body. The photoelastic analysis was configured through a vertical load on the first upper molar and fixed support at the ramus of mandible. The same configuration was used in the computer simulation. Force magnitudes of 50, 100, 150, and 200 N were applied to evaluate the bone stress. The stress results presented similar distribution in both analyses, with the more intense stress being at retromolar area and oblique line and alveolar process at molar level. This study presented the similarity of results in the experimental and computational analyses and, thus, showed the high importance of morphology biomechanical characterization at posterior dentition.