Generation of 3-D finite element models of restored human teeth using micro-CT techniques.
SourceInternational Journal of Prosthodontics, 14, 4, (2001), pp. 310--5
Article / Letter to editor
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Oral Function and Prosthetic Dentistry
Preventative Restorative Dentistry
International Journal of Prosthodontics
SubjectAdhesive dentistry; Mechano-biology of musculoskeletal tissues; Adhesieve tandheelkunde; Mechano-biologie van bindweefsels i.r.t. orthopaedische reconstructies
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.
This item appears in the following Collection(s)
- Academic publications 
- Faculty of Medical Sciences 
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