临床口腔医学杂志2017，Vol.33Issue(8)：467-470,4.DOI:10.3969/j.issn.1003-1634.2017.08.006
微种植体支抗滑动法内收上前牙的三维有限元分析研究
Three-dimensional finite element analysis of maxillary anterior teeth retraction with micro-implant anchorage and sliding mechanics based on hyperelastic model of periodontal ligament
摘要
Abstract
Objective:To explore the construction method of periodontal ligament hyperelastic constitutive model that was constructed to investigate the biomechanical effects of micro-implant anchorage technique with sliding mechanics onmaxillary anterior teeth retraction between one-step and two-step methods.Methods:ANSYS14.0 finite element analysis software was used to simulate the sliding mechanics with different implant insertion heights(4 mm,6 mm and 8 mm,respectively) in order to compare the initial displacement.Results:To maxillary anterior teeth retraction,with the increasement of the micro-implant insertion heights,the initial displacement of maxillary anterior teeth retraction decreased and the initial displacement of maxillary anterior teeth intrusion increased.When the retraction increased and the initial displacement of maxillary anterior teeth intrusion decreased.The periodontal membrane was dispersed and the maximum stress value was transferred to the root tip.Two-step method produced more initial displacement of maxillary anterior teeth retraction and intrusion than one-step method.Conclusion:The ideal teeth movement control could be achieved by different insertion heights of micro-implant,and two-step method could produce more initial displacement than one-step method.关键词
牙周膜超弹性本构模型/微种植体支抗/滑动法/直丝弓/三维有限元分析Key words
Periodontal ligament hyperelastic constitutive model/Micro-implant anchorage/Sliding mechanics/Straight wire/Three dimensional finite element analysis分类
医药卫生引用本文复制引用
孙志涛,崔涛,孙阳,崔玉美,宋宇..微种植体支抗滑动法内收上前牙的三维有限元分析研究[J].临床口腔医学杂志,2017,33(8):467-470,4.基金项目
山东省青岛市市南区科技局资助项目(2014-14-38-YY) （2014-14-38-YY）
