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Volume 19 , Issue 1
January/February 2006

Pages 4042

Peri-implant Stress Analysis in Simulation Models With or Without Trabecular Bone Structure

Roxana Stegaroiu, DDS, PhD / Naoko Watanabe, DDS, PhD / Mikako Tanaka, DDS, PhD / Sadakazu Ejiri, DDS, PhD / Shuichi Nomura, DDS, PhD / Osamu Miyakawa, BE, PhD

PMID: 16479759

Most 3-dimensional (3D) finite element analyses (FEAs) simplify the cancellous bone to a block and completely ignore its trabecular structure. Thus, a 3D FEA was performed to compare the peri-implant stress distribution of a model in which the trabecular structure was accurately simulated (precise model) with that of a model with a homogenous cancellous bone component (simplified model). In contrast to the simplified model, the distribution patterns and higher stresses in the precise model may explain the overall bone resorption at the implant-bone interface in load-related implant failures. Further studies using data from the jawbone and a more detailed implant simulation are planned.
Int J Prosthodont 2006;19:4042.

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