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

Marco Favino, Christian Gross, Marcel Drolshagen, Ludger Keilig, James Deschner, Christoph Bourauel and Rolf Krause

Computer Methods in Biomechanics and Biomedical Engineering, 2013, vol. 16, issue 5, 544-553

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.

Date: 2013
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DOI: 10.1080/10255842.2011.628660

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