Studying the biomechanical effects of zirconia implant geometry and bone quality on the bone-implant interface using finite element analysis

Pub Date : 2021-04-01 DOI:10.15251/jobm.2021.132.67
D. Velmurugan, T. Pridhar, T. Yuvaraj, R. Srinivasan, B. Suresh Babu
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Abstract

The success of dental implants is influenced by several biomechanical factors such as implant design, bone quality, length of the implant, and the load transferred to the implant. The present studyaimsto determine the effects of bone quality, implant length, and bone type on stress/strain distribution in bone and implant for a zirconia implant. The study was performed using the three dimensional finite element analysis and four different lengths, two types of implants, and four different bone qualities. The Elastic modulus of a cancellous bone was varied to represent the four different bone qualities. A load of 100 N was applied at the center of the abutment. The result of this current work shows that a bone is subjected to the maximum equivalent stress and strain when the cancellous bone density decreased. The screw type implant induced lesser strain than the cylinder type load. The study also confirms that longer implants produced lesser stain than shorter implants, and type I, and II bones induced lesser stresses than type III, and IV bones. The importance of bone quality has been confirmed from this study, and zirconia dental implants have induced lesser stresses.
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采用有限元方法研究氧化锆种植体几何形状和骨质量对骨-种植体界面的生物力学影响
种植体的成功与否受多种生物力学因素的影响,如种植体的设计、骨质量、种植体的长度和转移到种植体上的负荷。本研究旨在确定骨质量、种植体长度和骨类型对氧化锆种植体骨和种植体应力/应变分布的影响。研究采用三维有限元分析和四种不同长度、两种类型的种植体和四种不同的骨质量。松质骨的弹性模量是不同的,以代表四种不同的骨质量。在桥台中心施加100牛的荷载。目前的研究结果表明,当松质骨密度降低时,骨受到最大的等效应力和应变。螺钉型植入物比圆柱型植入物产生更小的应变。该研究还证实,较长的植入物比较短的植入物产生的染色更少,I型和II型骨比III型和IV型骨产生的应力更小。本研究证实了骨质量的重要性,氧化锆牙种植体诱导的应力较小。
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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