Stress analysis of bone modelling response to rat molar orthodontics

Thomas R. Katona, Nasser H. Paydar, Hasan U. Akay, W. Eugene Roberts

Research output: Contribution to journalArticlepeer-review

61 Scopus citations


The purpose of this project was to determine if alveolar bone modeling could be associated with altered mechanical environment. Finite element stress analysis of an orthodontically tipped rat molar periodontium was performed. The distributions of mechanical components within the periodontal ligament and cortical bone were compared to the well-documented bone formation and resorption patterns in the alveolus of the tooth. It was concluded that in orthodontically induced bone modelling activity, locations of osteogenesis uniquely coincided with increased tension within the periodontal ligament, while bone resorption areas could be associated with increases in other components (minimum principal and maximum shear stresses, strain energy density, and von Mises) within the bone itself.

Original languageEnglish (US)
Pages (from-to)27-38
Number of pages12
JournalJournal of Biomechanics
Issue number1
StatePublished - Jan 1995

ASJC Scopus subject areas

  • Biophysics
  • Orthopedics and Sports Medicine
  • Biomedical Engineering
  • Rehabilitation

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