West China Journal of Stomatology

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The Study on Three-dimension Finite Element Analysis of the Stress Distribution in the Mandible Bone around Dental Implants

WANGXiao-jie, LUO Jiao-ming, CHENJi-yong, ZHANG Xing-dong   

  1. Engineering Research Center in Biomaterials, Sichuan University, Chengdu610064, China
  • Received:2005-04-25 Revised:2005-04-25 Online:2005-04-20 Published:2005-04-20

Abstract:

Objective The aim of this studywas to investigate howto model an accuracy 3-dimension Finite Element Analysis (3D-FEA) model.Methods Based on computed tomography (CT) scan data of a woman, a 3D finite element model of the first molar on the left was rebuilt by computer imagines process and computer aided design (CAD). Analysis of the stress distribution on a cylinder dental implant and in the bone around itwas conducted.Results The stress distribution showed extremely asymme- try in bucco-lingual section: stress concentrated on the lingual side of the mandible; stress mainlywas tensile in buccal side, and on the contrary compressive in lingual side.Conclusion The resultswere more reliable because this model more really displayed the mandible.

Key words: stress distribution, dental implants, three-dimension finite element analysis, mandible model