Threedimensional finite element analysis of a new

Authors: Lin Liu Yinying Qu Lijun Jiang Qian Zhou Tianqi Tang

Publish Date: 2016/07/05

Volume: 36, Issue: 3, Pages: 422-427

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Abstract

The purpose of this research was to evaluate the structural stress and deformation of a newly designed onplant miniplate anchorage system compared to a standard anchorage system A bone block integrated with a novel miniplate and fixation screw system was simulated in a threedimensional model and subjected to force at different directions The stress distribution and deformation of the miniplate system and cortical bone were evaluated using the threedimensional finite element method The results showed that the stress on the plate system and bone was linearly proportional to the force magnitude and was higher when the force was in a vertical direction Yaxis Stress and deformation values of the two screws screw 1 and 2 were asymmetric when the force was added along Yaxis and was greater in screw 1 The highest deformation value of the screws was 75148 μm much smaller than the limit value The load was decreased for each single miniscrew and the ability of the new anchorage system to bear the load was also enhanced to some degree It was suggested that the newly designed onplant miniplate anchorage system is effective easily implanted and minimally invasive

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