alexa Influence Of Increase Of The Occlusal Contact Area On The Tension Generation On Natural Teeth And Adjacent Structures By Finite Element Analisys (FEA)
ISSN: 2161-1122

Dentistry
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Research Article

Influence Of Increase Of The Occlusal Contact Area On The Tension Generation On Natural Teeth And Adjacent Structures By Finite Element Analisys (FEA)

Da Silva FM1*, Septímio Lanza MD2, Landre Júnior J3, Seraidarian PI2 and Jansen WC2

1School of Dentistry, Faculty of Health Sciences, University Vale do Rio Doce, Governador Valadares, MG, Brazil

2Department of Prosthodontics, School of Dentistry, Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil

3Department of Mechanical Engineering, Faculty of Mechanical Engineering, Catholic University of Minas Gerais, Belo Horizonte, MG, Brazil

*Corresponding Author:
Frederico Marques da Silva
DDS, MSc, School of Dentistry
Faculty of Health Sciences, University Vale do Rio Doce
Governador Valadares, MG, Brazil
Tel: +55 31 3823.9541
E-mail: [email protected]

Received date: May 16, 2014; Accepted date: June 17, 2014; Published date: June 19, 2014

Citation: Da Silva FM, Septímio Lanza MD, Landre Júnior J, Seraidarian PI, Jansen WC (2014) Influence of Increase of the Occlusal Contact Area on the Tension Generation on Natural Teeth and Adjacent Structures by Finite Element Analysis (FEA). Dentistry 4:244. doi: 10.4172/2161-1122.1000244

Copyright: 2014 Da Silva FM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited

 

Abstract

Background: The increase in the occlusal contact area can generate significant stresses on the occlusal surface of a natural tooth as well as the cervical region and in the alveolar crest around this same tooth edge.
Objective: The objective of this study was to study the influence of the increase of the occlusal contact area on the tension generation on a molar tooth and adjacent structures by three-dimensional finite element models.
Methods: A tridimensional model composed of an inferior molar tooth and surrounding structures was fabricated, and a load of 100 N was applied over the occlusal surface on pre-set regions according to an ideal occlusal standard that was previously defined for the study. The diameters of the contact spots on the tooth were increased gradually and varied from 0.5 mm to 1.0 mm to 1.5 mm. The generated tension over those contact spots was analyzed and quantified on pre-set regions of the occlusal marginal crest: the cervical region and the alveolar crestal bone.
Results: The results showed that occlusal contact diameter causes a decrease in the tension level of 33.8% on the marginal crests, a decrease of 20.7% on the alveolar rim interface, and an increase of 44.1% on the cervical region, near the cement enamel junction.
Conclusion: The occlusal contact diameter on the tooth surface had an influence on the tension generated on all analyzed regions.

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