Effects of periodontal bone loss on the natural frequency of the human canine: A three-dimensional finite element analysis

Li Kuo Shen, Haw Ming Huang, Jun Jea Yu, Sheng Yang Lee, Chin Ming Lee, Sung Chih Hsieh

Research output: Contribution to journalArticle

8 Citations (Scopus)


Background/purpose: Assessing periodontal conditions has always been a concern for dental researchers. In this study, we evaluated the potential of a natural frequency (NF) analysis to detect the health status of natural human canine teeth. Materials and methods: Three-dimensional finite element models of the human maxillary canine were constructed. NF values of the canine model were calculated with one-, two- and three-sided vertical bone loss. Results: By simulating a modal testing experiment, the NF value for a healthy canine was found to be 2581 Hz. As the bone level was lowered, a strong linear relationship between the frequency and attachment level was demonstrated in all three models. Results from this study demonstrated that the change in the NF was <12% in canines with a one-sided defect when the bone level varied by 10 mm from the cementoenamel junction. However, when a three-sided bony defect was simulated, the change in NF ranged from 20% to 60%. Conclusion: This study demonstrates that the NF of the human canine decreases with various degrees of periodontal bone height loss.

Original languageEnglish
Pages (from-to)81-86
Number of pages6
JournalJournal of Dental Sciences
Issue number2
Publication statusPublished - Jun 2009



  • Alveolar bone
  • Finite element
  • Natural frequency
  • Periodontal ligament
  • Stability

ASJC Scopus subject areas

  • Dentistry(all)

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