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Influence of material and diameter of pre-fabricated posts on maxillary central incisors restored with crown

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Google Scholar Scholar | Other documents of the author: González-Lluch, Carmen; Rodríguez Cervantes, Pablo Jesús; Sancho-Bru, Joaquin L.; Pérez González, Antonio; Barjau Escribano, Amaya; Vergara, Margarita; Forner Navarro, LeopoldoMicrosoft Academico
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comunitat-uji-handle:10234/9

comunitat-uji-handle2:10234/7035

comunitat-uji-handle3:10234/8617

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http://dx.doi.org/10.1111/j.1365-2842.2009.01989.x

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Title
Influence of material and diameter of pre-fabricated posts on maxillary central incisors restored with crown
Author (s)
 González-Lluch, Carmen;
 Rodríguez Cervantes, Pablo Jesús;
Sancho-Bru, Joaquin L.;
Pérez González, Antonio;
Barjau Escribano, Amaya;
 Vergara, Margarita;
Forner Navarro, Leopoldo
Date
2009
URI
http://hdl.handle.net/10234/95625
Publisher version
http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2842.2009.01989.x/full
DOI
http://dx.doi.org/10.1111/j.1365-2842.2009.01989.x
ISSN
0305-182X
Publisher
Wiley
Abstract
Numerous research works have studied the effect of post-design parameters on the mechanical behaviour of restored teeth without reaching any clear conclusions. Previous works by the authors ascertained the effect of ... [+]
Numerous research works have studied the effect of post-design parameters on the mechanical behaviour of restored teeth without reaching any clear conclusions. Previous works by the authors ascertained the effect of material and post-dimensions for non-crowned restored teeth. The aim of this work was to study the effect of post-material and diameter for crowned teeth. First, an experimental fracture strength test was performed on eighteen extracted human maxillary central incisors. Teeth were decoronated, treated endodontically and restored (nine with glass fibre posts and nine with stainless steel posts). Several post-diameters were used. The final crown restoration was carried out using a reinforced glass-ceramic material. Failure loads were recorded and results were compared using the one-way anova. Secondly, the finite element technique was used to model the restored teeth and to compare the estimated stress distributions. The addition of the crown did not affect the strength of the restoration to any significant extent and post-diameter did not influence the biomechanical performance of either of the post-systems. The crown acts as a protector, thus eliminating the influence of the post-diameter that was found previously when using stainless steel posts, but it does not completely rule out the possibility of a root fracture. Significantly, lower failure loads were found experimentally for teeth restored with stainless steel posts. The stress distributions predicted by the model corroborated these findings and allowed the authors to propose the use of glass fibre posts as a more robust restorative technique. [-]
Subject
pre-fabricated intra-radicular posts | biomechanical performance | influence of post-diameter | influence of post-material | influence of crown | stress distribution
Type
info:eu-repo/semantics/article
Rights
© 2009 The Authors. Journal compilation © 2009 Blackwell Publishing Ltd
info:eu-repo/semantics/restrictedAccess
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Our content is published in:

HispanaEuropeanaRePEc: Research Papers in EconomicsTesis Doctorals en XarxaGoogle ScholarRecolectaOpenDOARRevistes Catalanes d'Accés ObertOpenAIREMaterials Docents en Xarxa

Ministerio This project has received a grant from the Dirección General del Libro, Archivos y Bibliotecas of the Spanish Ministry of Culture.
DSpace
Metadata subject to:Public Domain | Information and queries:biblioteca@uji.es | Security and privacy center | Legal Advice
Universitat Jaume I - Av. de Vicent Sos Baynat, s/n 12071 Castelló de la Plana, Spain - Phone: +34 964 72 87 61 Fax: +34 964 72 87 78