Computational simulation of internal bone remodelling around dental implants: a sensitivity analysis

Istabrak Hasan, Alireza Rahimi, Ludger Keilig, Kai-Thomas Brinkmann and Christoph Bourauel

Computer Methods in Biomechanics and Biomedical Engineering, 2012, vol. 15, issue 8, 807-814

Abstract: This study aimed to predict the distribution of bone trabeculae, as a density change per unit time, around a dental implant based on applying a selected mathematical remodelling model. The apparent bone density change as a function of the mechanical stimulus was the base of the applied remodelling model that describes disuse and overload bone resorption. The simulation was tested in a finite element model of a screw-shaped dental implant in an idealised bone segment. The sensitivity of the simulation to different mechanical parameters was investigated; these included element edge length, boundary conditions, as well as direction and magnitude of the implant loads. The alteration in the mechanical parameters had a significant influence on density distribution and model stability, in particular at the cortical bone region. The remodelling model could succeed to achieve trabeculae-like structure around osseointegrated dental implants. The validation of this model to a real clinical case is required.

Date: 2012
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DOI: 10.1080/10255842.2011.561793

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