An easy and quick formulation of patient-specific 3D-FEM dentate mandible model with periodontal ligament for mechanical analysis

Yoshihiro Takao, Junpei Takahashi, Masahiko Terajima, Wen Xue Wang, Akihiko Nakashima

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In recent years, the number of patients with mandibular defects is increasing, and the orthognathic surgery of mandible has become a common treatment for re-establishing functional and aesthetic anatomy by repositioning displaced skeletal elements. To decrease a heavy burden and high risk of the surgery falling on the patients and clinicians, the present authors have developed a mechanical support system for orthognathic surgery. An easy, quick and patient-specific mesh generation including the periodontal ligament is essential. First, a mandible template was obtained manually, which requests the small number of elements. It is composed of 7 different materials and could reproduce the original shape of each material pretty well with a reduced number of elements. Next the template of around 6600 nodes is mapped by a simple formula in a moment of time to fit the patient's mandible polygonal image obtained from an individual CT image. The calculation with the resulted patient-specific mesh by a 3D FEM code is also performed successfully.

Original languageEnglish
Pages (from-to)550-561
Number of pages12
JournalJournal of Biomechanical Science and Engineering
Volume4
Issue number4
DOIs
Publication statusPublished - 2009

All Science Journal Classification (ASJC) codes

  • Biomedical Engineering

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