Three dimension finite element analysis of anisotropic mandible with dental implants effect on implant-bone interface
10.3760/cma.j.issn.1002-0098.2009.01.012
- VernacularTitle:下颌骨各向异性材质模型对种植牙有限元分析的影响
- Author:
Xi DING
1
;
Xing-Hao ZHU
;
Xiu-Hua ZHANG
;
Sheng-Hui LIAO
;
ZHANGlin
;
Hong CHEN
Author Information
1. 温州医学院附属第一医院
- Keywords:
Dental implants;
Mandible;
Finite element analysis
- From:
Chinese Journal of Stomatology
2009;44(1):41-45
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish anisotropic mandible model with dental implants and to investigate the effect of anisotropy material on stress and strain distribution of implant-bone interface.Methods Three-dimensional finite element models of whole mandible with anisotropic and equivalent isotropic material were created by CT scanning and universal surgical integration system(USIS)software developed by the authors.Two ITI threaded implants were implanted in the posterior teeth area.The vslues of principal stress and principal strain on the bone around dental implants were calculated in two different finite element madels with buccolingual load.Results In the anisotropic madible model,nearly all values of the principal stress and principal strain on cortical and cancellous bone increased compared with the equivalent isotropy model,2.1%-174.1%for principal stress and 4.7%-57.3%for principal strain,but 10.3%-71.4%for principal stress and 19.5%-63.4%for principal strain on cancellous bone.Conclusions In the three-dimensional finite element analysis,anisotropic mandible model with dental implants has an apparent effect on the stress and strains of the implant-bone interface.Anisotropic mechanical properties of mandible should be emphasized in biomechanical study.