Document Detail


Generation of 3-D finite element models of restored human teeth using micro-CT techniques.
MedLine Citation:
PMID:  11508084     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
N Verdonschot; W M Fennis; R H Kuijs; J Stolk; C M Kreulen; N H Creugers
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The International journal of prosthodontics     Volume:  14     ISSN:  0893-2174     ISO Abbreviation:  Int J Prosthodont     Publication Date:    2001 Jul-Aug
Date Detail:
Created Date:  2001-08-17     Completed Date:  2001-12-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8900938     Medline TA:  Int J Prosthodont     Country:  United States    
Other Details:
Languages:  eng     Pagination:  310-5     Citation Subset:  D    
Affiliation:
Orthopedic Research Laboratory, University of Nijmegen, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Bicuspid / radiography
Bisphenol A-Glycidyl Methacrylate
Composite Resins*
Computer Simulation
Dental Models*
Dental Restoration, Permanent*
Dental Stress Analysis / methods*
Elasticity
Finite Element Analysis
Humans
Imaging, Three-Dimensional / instrumentation,  methods*
Materials Testing
Maxilla
Resin Cements
Tensile Strength
Tomography Scanners, X-Ray Computed
Tomography, X-Ray Computed / instrumentation,  methods
Chemical
Reg. No./Substance:
0/Composite Resins; 0/Pertac hybrid; 0/Resin Cements; 117681-12-6/Herculite XR; 121761-82-8/Clearfil Photo Posterior; 1565-94-2/Bisphenol A-Glycidyl Methacrylate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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