华西口腔医学杂志Issue(1)：85-90,6.DOI:10.7518/hxkq.2014.01.020
不同力作用下微种植体长度和直径的双变量优化分析
Selection of optimal length and diameter of mini implant in two different forces:a three-dimensional finite element analysis
鲁颖娟 1常少海 1伍虹 1余艳崧 1叶玉珊 1常岚茹 1王为1
作者信息
- 1. 中山大学孙逸仙纪念医院口腔科，广州 510120
- 折叠
摘要
Abstract
Objective To investigate the effect of different length and diameters on the stability of mini implant and to select optimal length and diameter using continuous variation of parameters. Methods To perform 3-dimensional finite element analysis, finite element models of a maxilla, and mini implants with length of 6-12 mm and diameters of 1.2-2.0 mm were generated. Load of two different forces were applied to the head of mini implant. One type was horizontal force (HF), the other was composite force (CF). The maximum equivalent stress (Max EQV) in maxilla and the maximum displacement (Max DM) of mini implant were evaluated. Results The Max EQV in maxilla and Max DM of mini implant decreased as length and diameter increased. When length was more than 9 mm, the evaluation indexes were small and had a less change. Datas indicated that diameter played a more important role in reducing target, and was a more effective parameter in re-ducing Max EQV when CF was loaded. Conclusion From biomechanical point of view, the choice of the length should not be more than 9 mm. When CF is loaded using the mini implant, diameter exceeding 1.2 mm are optimal design for mini implant.关键词
有限元分析/微种植体/长度/直径/优化设计Key words
finite element analysis/mini implant/length/diameter/optimization分类
医药卫生引用本文复制引用
鲁颖娟,常少海,伍虹,余艳崧,叶玉珊,常岚茹,王为..不同力作用下微种植体长度和直径的双变量优化分析[J].华西口腔医学杂志,2014,(1):85-90,6.
