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Validation of a heterogeneous elastic-biphasic model for the numerical simulation of the PDL

Author

Listed:
  • Marco Favino
  • Christian Gross
  • Marcel Drolshagen
  • Ludger Keilig
  • James Deschner
  • Christoph Bourauel
  • Rolf Krause

Abstract

An elastic-biphasic model for the simulation of the periodontal ligament (PDL) and the adjacent tooth is presented and investigated. The PDL is modelled as a biphasic material following the work of Ehlers and Markert (2001), whereas the tooth is modelled as a linear elastic body. A spatial discretisation scheme is proposed based on mixed finite elements for the spatial discretisation. Due to nonlinearity in the model, a predictor–corrector scheme is employed as a temporal discretisation scheme. In order to validate the PDL model, in vitro measurements are compared with numerical simulations. The numerical simulations are performed using geometries resulting from micro-CT scanner of the same porcine tooth, which was employed for the invitro measurements.

Suggested Citation

  • Marco Favino & Christian Gross & Marcel Drolshagen & Ludger Keilig & James Deschner & Christoph Bourauel & Rolf Krause, 2013. "Validation of a heterogeneous elastic-biphasic model for the numerical simulation of the PDL," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 16(5), pages 544-553, May.
    • Handle: RePEc:taf:gcmbxx:v:16:y:2013:i:5:p:544-553
    DOI: 10.1080/10255842.2011.628660
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