title: Validation of a heterogeneous elastic-biphasic model for the numerical simulation of the PDL.
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 in vitro measurements.
authors.affiliation: Institute of Computational Science, University of Lugano, Lugano, Switzerland. favinom@usi.ch
authors.forename: Marco
authors.initials: M
authors.lastname: Favino
authors.forename: Christian
authors.initials: C
authors.lastname: Gross
authors.forename: Marcel
authors.initials: M
authors.lastname: Drolshagen
authors.forename: Ludger
authors.initials: L
authors.lastname: Keilig
authors.forename: James
authors.initials: J
authors.lastname: Deschner
authors.forename: Christoph
authors.initials: C
authors.lastname: Bourauel
authors.forename: Rolf
authors.initials: R
authors.lastname: Krause
mesh_terms: D000818:Animals; D004548:Elasticity; D008954:Models, Biological; D003765:Models, Dental; D010513:Periodontal Ligament / Q000502:physiology*; D013552:Swine; D014070:Tooth / Q000502:physiology*