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Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load
This study aimed to evaluate the biomechanical behaviour of adhesive endo-crowns and the influence of their design on the restoration prognosis when four loading positions are applied from the restoration–tooth junction. Two three-dimensional finite element models for the lower first molar were deve...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
SAGE Publications
2012
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3425396/ https://www.ncbi.nlm.nih.gov/pubmed/22924064 http://dx.doi.org/10.1177/1758736012455421 |
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author | Hasan, Istabrak Frentzen, Matthias Utz, Karl-Heinz Hoyer, Daniel Langenbach, Alexander Bourauel, Christoph |
author_facet | Hasan, Istabrak Frentzen, Matthias Utz, Karl-Heinz Hoyer, Daniel Langenbach, Alexander Bourauel, Christoph |
author_sort | Hasan, Istabrak |
collection | PubMed |
description | This study aimed to evaluate the biomechanical behaviour of adhesive endo-crowns and the influence of their design on the restoration prognosis when four loading positions are applied from the restoration–tooth junction. Two three-dimensional finite element models for the lower first molar were developed: endo-crown as a monobloc and endo-crown of a primary abutment and a full crown. Four crown loading positions were considered: 5, 6, 7 and 8 mm. A force of 1400 N was applied buccally on the middle of the mesiodistal width. No differences were observed for the two endo-crowns concerning restoration displacement and the distribution of equivalent von Mises stress and total equivalent strain. Shifting the position of the applied load to 8 mm resulted in an increase in the displacement from 25 to 42 µm and an increase of equivalent von Mises stress concentration at the tooth. The height of load application on the restoration has a significant role in the prognosis of endo-crowns. |
format | Online Article Text |
id | pubmed-3425396 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2012 |
publisher | SAGE Publications |
record_format | MEDLINE/PubMed |
spelling | pubmed-34253962012-08-24 Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load Hasan, Istabrak Frentzen, Matthias Utz, Karl-Heinz Hoyer, Daniel Langenbach, Alexander Bourauel, Christoph J Dent Biomech Article This study aimed to evaluate the biomechanical behaviour of adhesive endo-crowns and the influence of their design on the restoration prognosis when four loading positions are applied from the restoration–tooth junction. Two three-dimensional finite element models for the lower first molar were developed: endo-crown as a monobloc and endo-crown of a primary abutment and a full crown. Four crown loading positions were considered: 5, 6, 7 and 8 mm. A force of 1400 N was applied buccally on the middle of the mesiodistal width. No differences were observed for the two endo-crowns concerning restoration displacement and the distribution of equivalent von Mises stress and total equivalent strain. Shifting the position of the applied load to 8 mm resulted in an increase in the displacement from 25 to 42 µm and an increase of equivalent von Mises stress concentration at the tooth. The height of load application on the restoration has a significant role in the prognosis of endo-crowns. SAGE Publications 2012-08-03 /pmc/articles/PMC3425396/ /pubmed/22924064 http://dx.doi.org/10.1177/1758736012455421 Text en © The Author(s) 2012 http://creativecommons.org/licenses/by/2.0/ 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 work is properly cited. |
spellingShingle | Article Hasan, Istabrak Frentzen, Matthias Utz, Karl-Heinz Hoyer, Daniel Langenbach, Alexander Bourauel, Christoph Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title | Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title_full | Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title_fullStr | Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title_full_unstemmed | Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title_short | Finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
title_sort | finite element analysis of adhesive endo-crowns of molars at different height levels of buccally applied load |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3425396/ https://www.ncbi.nlm.nih.gov/pubmed/22924064 http://dx.doi.org/10.1177/1758736012455421 |
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