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A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study

AIM: To compare and assess the fracture resistance of endodontically treated teeth with those that have been subjected to endodontic retreatment. MATERIALS AND METHODS: 30 extracted mandibular premolars were decoronated at cementoenamel junction and randomly divided into 2 groups. In Group I endodon...

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Autores principales: Ganesh, Arathi, Venkateshbabu, Nagendrababu, John, Aby, Deenadhayalan, Gogulnath, Kandaswamy, Deivanayagam
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/PMC3915389/
https://www.ncbi.nlm.nih.gov/pubmed/24554864
http://dx.doi.org/10.4103/0972-0707.124146
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author Ganesh, Arathi
Venkateshbabu, Nagendrababu
John, Aby
Deenadhayalan, Gogulnath
Kandaswamy, Deivanayagam
author_facet Ganesh, Arathi
Venkateshbabu, Nagendrababu
John, Aby
Deenadhayalan, Gogulnath
Kandaswamy, Deivanayagam
author_sort Ganesh, Arathi
collection PubMed
description AIM: To compare and assess the fracture resistance of endodontically treated teeth with those that have been subjected to endodontic retreatment. MATERIALS AND METHODS: 30 extracted mandibular premolars were decoronated at cementoenamel junction and randomly divided into 2 groups. In Group I endodontic treatment was performed with ProTaper rotary system till size F2 and obturated. In Group II, cleaning and shaping was done and teeth were subjected to Spiral CT to assess the remaining dentin thickness and obturated. Later retreatment was done using Protaper Universal Retreatment system and final shaping was performed till size F3. Remaining dentin thickness was again assessed using Spiral CT and then obturated. All the specimens were subjected to fracture resistance using universal testing machine. The results were statistically analyzed using Independent Samples t-test for analysis of remaining dentin thickness using SCT within Group II and Paired Samples t-test was used for assessment of fracture resistance between Group I and II (P < 0.05). RESULTS: In Group II, the intra group comparison of the remaining dentin thickness in the coronal third reveals statistical significance, with a significant difference noted in the apical third. Results of the fracture resistance reveal a statistically significant difference (P < 0.05) between Groups I and II with the mean fracture resistance of Group I being higher than Group II. CONCLUSION: Endodontically retreated teeth have shown significantly decreased resistance to fracture and this has a positive correlation to the increased loss of root dentin during the retreatment procedures
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spelling pubmed-39153892014-02-19 A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study Ganesh, Arathi Venkateshbabu, Nagendrababu John, Aby Deenadhayalan, Gogulnath Kandaswamy, Deivanayagam J Conserv Dent Original Article AIM: To compare and assess the fracture resistance of endodontically treated teeth with those that have been subjected to endodontic retreatment. MATERIALS AND METHODS: 30 extracted mandibular premolars were decoronated at cementoenamel junction and randomly divided into 2 groups. In Group I endodontic treatment was performed with ProTaper rotary system till size F2 and obturated. In Group II, cleaning and shaping was done and teeth were subjected to Spiral CT to assess the remaining dentin thickness and obturated. Later retreatment was done using Protaper Universal Retreatment system and final shaping was performed till size F3. Remaining dentin thickness was again assessed using Spiral CT and then obturated. All the specimens were subjected to fracture resistance using universal testing machine. The results were statistically analyzed using Independent Samples t-test for analysis of remaining dentin thickness using SCT within Group II and Paired Samples t-test was used for assessment of fracture resistance between Group I and II (P < 0.05). RESULTS: In Group II, the intra group comparison of the remaining dentin thickness in the coronal third reveals statistical significance, with a significant difference noted in the apical third. Results of the fracture resistance reveal a statistically significant difference (P < 0.05) between Groups I and II with the mean fracture resistance of Group I being higher than Group II. CONCLUSION: Endodontically retreated teeth have shown significantly decreased resistance to fracture and this has a positive correlation to the increased loss of root dentin during the retreatment procedures Medknow Publications & Media Pvt Ltd 2014 /pmc/articles/PMC3915389/ /pubmed/24554864 http://dx.doi.org/10.4103/0972-0707.124146 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
Ganesh, Arathi
Venkateshbabu, Nagendrababu
John, Aby
Deenadhayalan, Gogulnath
Kandaswamy, Deivanayagam
A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title_full A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title_fullStr A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title_full_unstemmed A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title_short A comparative assessment of fracture resistance of endodontically treated and re-treated teeth: An in vitro study
title_sort comparative assessment of fracture resistance of endodontically treated and re-treated teeth: an in vitro study
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3915389/
https://www.ncbi.nlm.nih.gov/pubmed/24554864
http://dx.doi.org/10.4103/0972-0707.124146
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