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首页> 外文期刊>Proceedings of the Institution of Mechanical Engineers, Part H. Journal of Engineering in Medicine >Numerical simulation of bone remodelling around dental implants
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Numerical simulation of bone remodelling around dental implants

机译：种植牙周围骨重塑的数值模拟

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摘要

Crestal bone loss can result in the failure of dental implants and can be caused, by among other factors, the development of non-physiological mechanical conditions. Bone remodelling (BR) is the physiological process through which bone adapts itself to the mechanical environment. A previously published mathematical model of BR is used in this work to study the homogenized structural evolution of peri-implant bone. This model is used to study the influence of the diameter and length of a dental implant of pure titanium on its long-term stability. The temporal evolution of porosity and microstructural damage of the peri-implant bone are the variables analysed in this study. The results show that damage and porosity increase as the implant length decreases and, more pronouncedly, as its diameter decreases. The increase in damage and porosity levels is localized, as many other studies confirm, at the implant neck due to the stress concentration that is created in that area. The main conclusion of this study is that in implants with a diameter equal to or greater than 3mm the damage is under control and there is no mechanical failure of the peri-implant bone in the long term.
机译：颅骨丢失可导致牙植入物的失败，并且除其他因素外，还可能导致非生理机械状况的发展。骨骼重塑（BR）是生理过程，骨骼通过该过程适应机械环境。在这项工作中使用了先前发布的BR数学模型来研究种植体周围骨的均质结构演变。该模型用于研究纯钛牙科植入物的直径和长度对其长期稳定性的影响。植入物周围骨的孔隙度的时间演变和微结构损伤是本研究中分析的变量。结果表明，损伤和孔隙率随着植入物长度的减少而增加，更明显的是，随着直径的减小而增加。正如许多其他研究证实的那样，由于在该区域产生的应力集中，损伤和孔隙率水平的增加被局限在植入物颈部。这项研究的主要结论是，对于直径等于或大于3mm的植入物，损伤是可以控制的，并且从长远来看，植入物周围的骨骼不会发生机械故障。

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