Photoelastic and finite element analyses of occlusal loads in mandibular body.
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.
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil ; Department of Morphology, Anatomy Area, Piracicaba Dental School, UNICAMP, Limeira Avenue 901, P.O. Box 52, 13414903 Piracicaba, SP, Brazil.
Ana Cláudia
0000-0002-8718-4898
AC
Rossi
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Alexandre Rodrigues
AR
Freire
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Felippe Bevilacqua
FB
Prado
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Luciana
L
Asprino
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Lourenço
L
Correr-Sobrinho
Piracicaba Dental School, State University of Campinas, UNICAMP, Piracicaba, SP, Brazil.
Paulo Henrique Ferreira
PH
Caria