Analysis of the Influence of Parafunctional Loads on the Bone-Prosthesis System: A Non-Linear Finite Element Analysis

生物医学工程(英文) Pub Date : 2021-06-08 DOI:10.4236/JBISE.2021.146019

H. Losada, E. Gonçalves, J. Valin, Luis Ide

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引用次数: 1

Abstract

The present study evaluates the effects of occlusal loading on an implant-supported dental implant with external hexagon dental implant-abutment systems, using the finite element method analysis. Tensile analyses were performed to simulate different axial and obliquous masticatory loads. The influence of the variations in the contouring conditions of the interfaces was analyzed to weigh the osseointegration with linear and non-linear cases, by means of a parametric design. The geometry selected to place the prostheses was a jaw section, considering the properties of the set of cortical and trabecular bones. The results show that for non-linear contour conditions, the stress presents smaller value distributions and signals a different place in the screw-implant interface as the factor of the greater weight in this study. The location indicated that von Mises stress concentrations are not exclusive to the contact regions studied, moving to an area that is not in direct contact with the non-linear contact interfaces. In addition, the direction of load with an angle of 15 degrees presented the highest values of von Mises stress.

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副功能载荷对骨-假体系统影响的非线性有限元分析

本研究采用有限元分析方法，评估了咬合载荷对具有外六角种植体-基牙系统的种植体支撑种植体的影响。进行拉伸分析以模拟不同的轴向和倾斜咀嚼负荷。通过参数设计，分析了界面轮廓条件变化的影响，以衡量线性和非线性情况下的骨整合。考虑到皮质骨和小梁骨的特性，选择放置假体的几何形状是颌骨截面。结果表明，在非线性轮廓条件下，应力呈现较小的值分布，并表明螺钉-植入物界面中的不同位置是本研究中较大重量的因素。该位置表明，von Mises应力集中并非仅限于所研究的接触区域，而是移动到与非线性接触界面不直接接触的区域。此外，角度为15度的荷载方向呈现出最大的von Mises应力值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

生物医学工程(英文)

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900