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The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns

AIM: The purpose of the present study was to comparatively evaluate the effect of presence of a 2 mm ferrule and different type of dowels on fracture resistance of mandibular premolars. MATERIALS AND METHODS: Fifty uniradicular mandibular premolars were divided into five groups (n = 10). Ten teeth r...

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Autores principales: Aggarwal, Vivek, Singla, Mamta, Yadav, Suman, Yadav, Harish, Sharma, Vikram, Bhasin, Saranjit Singh
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4001279/
https://www.ncbi.nlm.nih.gov/pubmed/24778519
http://dx.doi.org/10.4103/0972-0707.128053
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author Aggarwal, Vivek
Singla, Mamta
Yadav, Suman
Yadav, Harish
Sharma, Vikram
Bhasin, Saranjit Singh
author_facet Aggarwal, Vivek
Singla, Mamta
Yadav, Suman
Yadav, Harish
Sharma, Vikram
Bhasin, Saranjit Singh
author_sort Aggarwal, Vivek
collection PubMed
description AIM: The purpose of the present study was to comparatively evaluate the effect of presence of a 2 mm ferrule and different type of dowels on fracture resistance of mandibular premolars. MATERIALS AND METHODS: Fifty uniradicular mandibular premolars were divided into five groups (n = 10). Ten teeth received no treatment (group I). Samples in group II & III were decoronated 2 mm above cemento-enamel junction and received custom cast dowel-core and fiber dowel-composite core respectively, with 2 mm ferrule. Samples in group IV & V were decoronated at CEJ and were restored using cast dowels and fiber dowel-composite cores, without any ferrule. The restored teeth received metal ceramic crowns and were mechanically loaded. The specimens were subjected to a static load, until fracture, to determine the fracture resistance and fracture mode. RESULTS: The samples with 2 mm ferrule had a higher fracture resistance than non ferrule groups. Within non ferrule groups, there were no significant differences in the fracture resistance. Specimen restored with cast dowel had more incidence of non-repairable fracture. CONCLUSIONS: Presence of ferrule increased the fracture resistance of endodontically treated teeth. In case of absence of ferrule, fiber dowels had similar fracture resistance as that of cast dowels and showed increased incidence of repairable fracture.
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spelling pubmed-40012792014-04-28 The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns Aggarwal, Vivek Singla, Mamta Yadav, Suman Yadav, Harish Sharma, Vikram Bhasin, Saranjit Singh J Conserv Dent Original Article AIM: The purpose of the present study was to comparatively evaluate the effect of presence of a 2 mm ferrule and different type of dowels on fracture resistance of mandibular premolars. MATERIALS AND METHODS: Fifty uniradicular mandibular premolars were divided into five groups (n = 10). Ten teeth received no treatment (group I). Samples in group II & III were decoronated 2 mm above cemento-enamel junction and received custom cast dowel-core and fiber dowel-composite core respectively, with 2 mm ferrule. Samples in group IV & V were decoronated at CEJ and were restored using cast dowels and fiber dowel-composite cores, without any ferrule. The restored teeth received metal ceramic crowns and were mechanically loaded. The specimens were subjected to a static load, until fracture, to determine the fracture resistance and fracture mode. RESULTS: The samples with 2 mm ferrule had a higher fracture resistance than non ferrule groups. Within non ferrule groups, there were no significant differences in the fracture resistance. Specimen restored with cast dowel had more incidence of non-repairable fracture. CONCLUSIONS: Presence of ferrule increased the fracture resistance of endodontically treated teeth. In case of absence of ferrule, fiber dowels had similar fracture resistance as that of cast dowels and showed increased incidence of repairable fracture. Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC4001279/ /pubmed/24778519 http://dx.doi.org/10.4103/0972-0707.128053 Text en Copyright: © Journal of Conservative Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Aggarwal, Vivek
Singla, Mamta
Yadav, Suman
Yadav, Harish
Sharma, Vikram
Bhasin, Saranjit Singh
The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title_full The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title_fullStr The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title_full_unstemmed The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title_short The effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
title_sort effect of ferrule presence and type of dowel on fracture resistance of endodontically treated teeth restored with metal-ceramic crowns
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4001279/
https://www.ncbi.nlm.nih.gov/pubmed/24778519
http://dx.doi.org/10.4103/0972-0707.128053
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