中国冶金工业医学杂志

人工骨植入不同骨质密度上颌窦区种植体骨界面的生物力学分析

作者：杨慧缪羽

分类号：R 7834

出版年,卷(期):页码：2016,33(2):132-134

摘要：

内蒙古医科大学第四附属医院口腔科,内蒙古包头 014030摘要：目的模拟不同骨质密度的上颌窦区域，植入不同高度羟基磷灰石骨粉后种植体的负载情况，分析种植体骨界面的应力分布情况。方法利用Ansys100有限元软件直接绘制奥齿泰种植体及部分上颌骨骨块模型，在牙槽骨表面植入羟基磷灰石骨粉，模拟植骨高度为0、2、4、6 mm，建立4组不同模型，在牙槽骨模型上植入48 mm×85 mm的种植体，通过对模型施加300N垂直和斜向45°静态载荷，分析比较四组模型在不同骨质密度下，种植体骨界面的应力分布特征。结果位移微动值综合认为植骨4 mm为最佳。结论高中低3种松质骨密度下，低密度松质骨中所受应力较大，不利于种植体的稳定及预后。

关键词：种植体骨界面;骨质密度;三维有限元;微动位移;应力分析

ObjectiveTo simulate the maxillary sinus area of different bone density and load of different height of hydroxyapatite bone implant,analyze the stress distribution of implant bone interfaceMethodsDirectly rendering osstem implant and maxillary bone model by using the finite element software Ansys100,hydroxyapatite bone were grafted in the surface of alveolar bone,heights of simulation bone were 0,2,4,6mm,4 groups of different models were built,with 48 x 85mm implant in the alveolar bone model,300N vertical and oblique 45 degree static load were applied to the models,the stress distribution of implant bone interface were analyzed and compared in four groups of models with different bone densityResultsBone graft of 4mm was the best considered by integrated micromotion displacement valueConclusionIn three kinds of high,medium and low cancellous bone density,the stress load of low density cancellous bone is larger,not conducive to the stability and prognosis of the implantKey Words:The implant bone interface;Three\|dimensional finite element;Bone density;Displacement;Stress analysis

基金项目：

作者简介：

参考文献：

［1］赵巍,候振德,任朝锋,等基于图像相关法的珊瑚羟基磷灰石材料静态力学性能\[J\]天津大学学报，2008,41(12):1423\|1426

\[2\]宿玉成现代口腔种植学\[M\]北京:人民卫生出版社,2002:211\|213

\[3\]王晗,李德超，朱扬,等Ⅱ类骨质下上颌窦区垂直骨高度不足时应用短种植体长度和直径的优化分析\[J\]中国组织工程研究与临床康复,2011,15(22):4069\|4072

\[4\]李翠,郭新程,韦艺,等应用三维有限元发对不同骨质牙种植体生物力学的研究\[J\]口腔颌面外科学杂志,2011,21(1):15\|18

服务与反馈：

【文章下载】【加入收藏】