Comparison of dentoalveolar morphology in WT and P2X7R KO mice for the development of biomechanical orthodontic models

Rodrigo Viecelli, Thomas Katona, Jie Chen, Eugene Roberts, James Hartsfield

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

It has been suggested that the absence of the P2X7 receptor affects long bone morphology, and that one of the cytokines dependent on its activation may also affect tooth morphology. P2X7R KO (knockout) were compared with C57B/6 WT mice (background strain) to identify differences in a maxillary molar and surrounding bone. Nineteen WT and 12 KO mouse maxillae were scanned and 3D-reconstructed using microCT. Tooth dimensions were measured and 3D bone morphometry was conducted. A finite element model was constructed based on the results. No statistically significant differences were found in dentoalveolar characteristics between the two mouse types. A single finite element model of the tooth can be used to mechanically represent both strains. P2X7R does not have a major effect on alveolar bone or tooth morphology. The P2X7R effects are site-specific.

Original languageEnglish (US)
Pages (from-to)292-298
Number of pages7
JournalAnatomical Record
Volume292
Issue number2
DOIs
StatePublished - Feb 17 2009

Keywords

  • Bone morphometry
  • Mouse knockout
  • Orthodontic biomechanics
  • P2X7R
  • Tooth morphology

ASJC Scopus subject areas

  • Anatomy
  • Biotechnology
  • Histology
  • Ecology, Evolution, Behavior and Systematics

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