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Finite element analysis of different ferrule heights of endodontically treated tooth

Kashani, J. and Abdul Kadir, Mohammed Rafiq and Arabshahi, Z. (2011) Finite element analysis of different ferrule heights of endodontically treated tooth. In: 5th Kuala Lumpur International Conference on Biomedical Engineering 2011: (BIOMED 2011) 20-23 June 2011, Kuala Lumpur, Malaysia. Springer Berlin Heidelberg, Germany, pp. 432-435. ISBN 978-364221728-9

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Official URL: http://dx.doi.org/10.1007/978-3-642-21729-6_110

Abstract

Objective: To investigate the influence of ferrule height on the crown mechanical resistance and stress distribution through the root and luting cement to explain restoration lose and root fracture pattern. Material and methods: Threedimensional models of an adult maxilla and root of incisor tooth were developed from a Computed Tomography scan images. Periodontal ligament, luting cement, crown and custom post were reconstructed on the computer . A static load of 50N was applied to the crown at 70° to the occlusal plan. Results: Design with no ferrule had the most crown displacement and 2mm ferrule had the least. Also 2mm ferrule design had the lowest root and luting cement stress Conclusion: The study suggests that a ferrule increases mechanical resistance of crown. Furthermore, a ferrule decreases stress in dentin and luting cement; consequently, the fracture and losing restoration risk decline.

Item Type:Book Section
Uncontrolled Keywords:endodontically treated teeth, ferrule effect, finite element analysis, post, root fracture
Subjects:Q Science
ID Code:29706
Deposited By: Liza Porijo
Deposited On:22 Mar 2013 16:31
Last Modified:31 Jul 2017 11:51

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