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BioMed Research International
Volume 2016, Article ID 3926941, 11 pages
http://dx.doi.org/10.1155/2016/3926941
Research Article

Influence of Trabecular Bone on Peri-Implant Stress and Strain Based on Micro-CT Finite Element Modeling of Beagle Dog

1School of Information Science and Engineering, Central South University, Changsha, China
2Department of Stomatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China

Received 10 December 2015; Accepted 22 May 2016

Academic Editor: Paul C. Dechow

Copyright © 2016 Sheng-hui Liao 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

The objective of this investigation is to analyze the influence of trabecular microstructure modeling on the biomechanical distribution of the implant-bone interface. Two three-dimensional finite element mandible models, one with trabecular microstructure (a refined model) and one with macrostructure (a simplified model), were built. The values of equivalent stress at the implant-bone interface in the refined model increased compared with those of the simplified model and strain on the contrary. The distributions of stress and strain were more uniform in the refined model of trabecular microstructure, in which stress and strain were mainly concentrated in trabecular bone. It was concluded that simulation of trabecular bone microstructure had a significant effect on the distribution of stress and strain at the implant-bone interface. These results suggest that trabecular structures could disperse stress and strain and serve as load buffers.