基于有限元分区式多孔种植体设计研究

发布时间：2018-06-30 09:37

  本文选题：种植体 + 多孔　； 参考：《口腔医学研究》2017年09期

【摘要】：目的:根据现有普通种植体的几何参数,设计分区式多孔结构种植体进行拓扑优化,并通过有限元方法分析有无多孔、不同孔形以及不同位置的种植体在下颌骨模型中的应力分布,比较其优劣势。方法:通过"六维齿科牙种植设计软件"确定几何参数并UG建模;在有限元软件中模拟咬合力加载,分析4种种植体在最大力、适合力下的应力分布。结果:4种不同种植体的应力分布有较大差异,正菱形交错排布多孔种植体应力分布明显小于其它3组。结论:对于种植体修复,合适的多孔结构种植体在力学性能上比现有的普通实心种植体更具优势。
[Abstract]:Objective: according to the geometric parameters of the existing ordinary implants, we designed the segmented porous implants for topology optimization, and analyzed whether there were holes in the implants by finite element method. The stress distribution of implants with different foramen and different positions in mandibular model was compared. Methods: the geometric parameters were determined by the "six dimensional dental implant design software" and the UG model was established, and the stress distribution of the four implants under the most powerful and suitable force was analyzed by simulating the bite force loading in the finite element software. Results the stress distribution of the four different implants was different, and the stress distribution of the normal rhombic interlaced porous implants was obviously smaller than that of the other three groups. Conclusion: suitable porous implants have better mechanical properties than existing solid implants.
【作者单位】： 浙江工业大学特种装备制造与先进加工技术教育部/浙江省重点实验室;
【基金】：国家自然科学基金(编号:51375453)
【分类号】：R783.6
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本文编号：2085843