Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model

A computational method has been developed for stress analysis of a restored tooth so that experimental effort can be minimized. The objectives of this study include (i) developing a method to create a 3D FE assembly model for a restored tooth based on CT images and (ii) conducting stress analysis of...

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Main Authors: Yiu Pong Chan, Chak Yin Tang, Bo Gao
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:International Journal of Biomaterials
Online Access:http://dx.doi.org/10.1155/2012/657519
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author Yiu Pong Chan
Chak Yin Tang
Bo Gao
author_facet Yiu Pong Chan
Chak Yin Tang
Bo Gao
author_sort Yiu Pong Chan
collection DOAJ
description A computational method has been developed for stress analysis of a restored tooth so that experimental effort can be minimized. The objectives of this study include (i) developing a method to create a 3D FE assembly model for a restored tooth based on CT images and (ii) conducting stress analysis of the restored tooth using the 3D FE model established. To build up a solid computational model of a tooth, a method has been proposed to construct a 3D model from 2D CT-scanned images. Facilitated with CAD tools, the 3D tooth model has been virtually incorporated with a Class II MO restoration. The tooth model is triphasic, including the enamel, dentin, and pulp phases. To mimic the natural constraint on the movement of the tooth model, its corresponding mandible model has also been generated. The relative high maximum principal stress values were computed at the surface under loading and in the marginal region of the interface between the restoration and the tooth phases.
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language English
publishDate 2012-01-01
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spelling doaj-art-533b9a2b1b8b4c8b97062e2ce012a97c2025-02-03T01:27:38ZengWileyInternational Journal of Biomaterials1687-87871687-87952012-01-01201210.1155/2012/657519657519Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element ModelYiu Pong Chan0Chak Yin Tang1Bo Gao2Department of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong KongDepartment of Industrial and Systems Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong KongDepartment of Prosthodontics, College of Stomatology, The Fourth Military Medical University, Xi'an 710032, ChinaA computational method has been developed for stress analysis of a restored tooth so that experimental effort can be minimized. The objectives of this study include (i) developing a method to create a 3D FE assembly model for a restored tooth based on CT images and (ii) conducting stress analysis of the restored tooth using the 3D FE model established. To build up a solid computational model of a tooth, a method has been proposed to construct a 3D model from 2D CT-scanned images. Facilitated with CAD tools, the 3D tooth model has been virtually incorporated with a Class II MO restoration. The tooth model is triphasic, including the enamel, dentin, and pulp phases. To mimic the natural constraint on the movement of the tooth model, its corresponding mandible model has also been generated. The relative high maximum principal stress values were computed at the surface under loading and in the marginal region of the interface between the restoration and the tooth phases.http://dx.doi.org/10.1155/2012/657519
spellingShingle Yiu Pong Chan
Chak Yin Tang
Bo Gao
Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
International Journal of Biomaterials
title Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
title_full Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
title_fullStr Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
title_full_unstemmed Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
title_short Stress Analysis of a Class II MO-Restored Tooth Using a 3D CT-Based Finite Element Model
title_sort stress analysis of a class ii mo restored tooth using a 3d ct based finite element model
url http://dx.doi.org/10.1155/2012/657519
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AT chakyintang stressanalysisofaclassiimorestoredtoothusinga3dctbasedfiniteelementmodel
AT bogao stressanalysisofaclassiimorestoredtoothusinga3dctbasedfiniteelementmodel