Cited 25 times since 2001 (1.1 per year) source: EuropePMC The International journal of prosthodontics, Volume 14, Issue 4, 1 1 2001, Pages 310-315 Generation of 3-D finite element models of restored human teeth using micro-CT techniques. Verdonschot N, Fennis WM, Kuijs RH, Stolk J, Kreulen CM, Creugers NH
Purpose
This article describes the development of a three-dimensional finite element model of a premolar based on a microscale computed tomographic (CT) data-acquisition technique. The development of the model is part of a project studying the optimal design and geometry of adhesive tooth-colored cusp-replacing restorations.
Materials and methods
The premolar was digitized with a micro CT scanner with a resolution of 13 microns. Surface contours were fitted to the various materials, after which a 3-D finite element mesh was constructed to the contours. To demonstrate the potential use of the resulting model, it was applied to a cusp-replacing resin composite restoration.
Results
The stress patterns generated in the composite material were truly 3-D. Stress concentrations were found at the surface where the load was applied and in the vicinity of the dentin-composite bonding surface, where the interface had its complex geometry.
Conclusion
The described procedure is an easy method to produce a highly detailed 3-D finite element model of a premolar with an adhesive cusp-replacing restoration.
