Comportamento biomecânico de resinas compostas indiretas: Um estudo 3D-FEA

Translated title of the contribution: Biomechanical behavior of indirect composite materials: A 3D-FEA study

João Paulo Mendes Tribst*, Amanda Maria de Oliveira Dal Piva, Alexandre Luiz Souto Borges

*Corresponding author for this work

Research output: Contribution to JournalArticleAcademicpeer-review


Objetivo: This study aimed to evaluate the influence of the elastic modulus of indirect composite resins (ICR) in the stress distribution of a restored maxillary first premolar. Material and methods: A three-dimensional (3D) finite element model of the tooth and the mesialocclusal- distal (MOD) restoration was created. Three ICR were simulated, by changing the elastic modulus: 10, 15 and 20 GPa. All materials were considered as isotropic, homogeneous and linearly elastic. An occlusal load (200 N) was applied on occlusal surface trough a sphere, and the nodes of the external surface of the root were fixed. The maximum principal stresses on the tooth and restoration were analyzed. Results: According to FE analysis, the lower the ICR elastic modulus, the higher the tensile stress values generated on the remaining tooth. For the restoration, the opposite was observed: the lower the modulus, the lower the tensile stress. Conclusion: With the limitations of this study it is possible to conclude that the greater the elastic modulus of the restorative material the harder it will be to deflect the cusps, but the easier the fracture of the resin.

Translated title of the contributionBiomechanical behavior of indirect composite materials: A 3D-FEA study
Original languagePortuguese
Pages (from-to)52-57
Number of pages6
JournalBrazilian Dental Science
Issue number3
Publication statusPublished - 1 Jul 2017

Bibliographical note

Publisher Copyright:
© 2017, Faculdade de Ciencias Farmaceuticas (Biblioteca). All rights reserved.


  • Composite resin
  • Finite elements analysis
  • Indirect restoration


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