Consideration of shear modulus in biomechanical analysis of peri-implant jaw bone: Accuracy verification using image-based multi-scale simulation

Satoru Matsunaga, Hiroyoshi Naito, Yuichi Tamatsu, Naoki Takano, Shinichi Abe, Yoshinobu Ide

研究成果: Article査読

8 被引用数 (Scopus)

抄録

The aim of this study was to clarify the infuence of shear modulus on the analytical accuracy in peri-implant jaw bone simulation. A 3D fnite element (FE) model was prepared based on micro-CT data obtained from images of a jawbone containing implants. A precise model that closely reproduced the trabecular architecture, and equivalent models that gave shear modulus values taking the trabecular architecture into account, were prepared. Displacement norms during loading were calculated, and the displacement error was evaluated. The model that gave shear modulus values taking the trabecular architecture into account showed an analytical error of around 10-20% in the cancellous bone region, while in the model that used incorrect shear modulus, the analytical error exceeded 40% in certain regions. The shear modulus should be evaluated precisely in addition to the Young modulus when considering the mechanics of peri-implant trabecular bone structure.

本文言語English
ページ(範囲)425-432
ページ数8
ジャーナルDental Materials Journal
32
3
DOI
出版ステータスPublished - 2013 5月 30

ASJC Scopus subject areas

  • セラミックおよび複合材料
  • 歯学一般

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