Effect of post length on endodontically treated teeth: fracture resistance

Detalhes bibliográficos
Autor(a) principal: Pereira, Jefferson Ricardo
Data de Publicação: 2015
Outros Autores: Valle, Accácio Lins do, Juvêncio, Talita Magro, Ghizoni, Janaina Salomon, Só, Marcus Vinícius de Reis
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian journal of oral sciences (Online)
Texto Completo: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641800
Resumo: Aim: This study compared the fracture resistance of endodontically treated teeth restored with posts and cores systems with different post lengths. Methods: Sixty extracted intact canines were randomly divided in 6 groups of 10 teeth each, as follows: groups 1, 2 and 3 were restored with custom cast post-and-core, and groups 4, 5 and 6 were restored with prefabricated post and composite resin core, with different post lengths (5.0, 7.5 and 10 mm, respectively). A compressive load was applied at a 45-degree angle to the long axis until failure occurred. Results: Two-way analysis of variance (á=0.05) showed statistically significant difference between the groups (p<0.001). However, when the mean fracture forces for the groups were compared (group 1: 254.4 N; groups 2, 3, 4, 5, 6 – 331.7 N, 434.7 N, 405.4 N, 395.6 N and 393.8 N, respectively), no significant differences could be detected among the three groups restored with prefabricated post and group 3. Conclusions: This study showed that an increased post length in teeth restored with prefabricated posts does not significantly increase the fracture resistance of endodontically treated teeth. On the other hand, endodontically treated teeth restored with custom cast-post and core showed significant increase on fracture resistance when the post length is increased.
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spelling Effect of post length on endodontically treated teeth: fracture resistancePost and core techniqueComposite resinFracture strengthOdontologyAim: This study compared the fracture resistance of endodontically treated teeth restored with posts and cores systems with different post lengths. Methods: Sixty extracted intact canines were randomly divided in 6 groups of 10 teeth each, as follows: groups 1, 2 and 3 were restored with custom cast post-and-core, and groups 4, 5 and 6 were restored with prefabricated post and composite resin core, with different post lengths (5.0, 7.5 and 10 mm, respectively). A compressive load was applied at a 45-degree angle to the long axis until failure occurred. Results: Two-way analysis of variance (á=0.05) showed statistically significant difference between the groups (p<0.001). However, when the mean fracture forces for the groups were compared (group 1: 254.4 N; groups 2, 3, 4, 5, 6 – 331.7 N, 434.7 N, 405.4 N, 395.6 N and 393.8 N, respectively), no significant differences could be detected among the three groups restored with prefabricated post and group 3. Conclusions: This study showed that an increased post length in teeth restored with prefabricated posts does not significantly increase the fracture resistance of endodontically treated teeth. On the other hand, endodontically treated teeth restored with custom cast-post and core showed significant increase on fracture resistance when the post length is increased.Universidade Estadual de Campinas2015-11-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/864180010.20396/bjos.v9i3.8641800Brazilian Journal of Oral Sciences; v. 9 n. 3 (2010): Jul./Sep.; 371-375Brazilian Journal of Oral Sciences; Vol. 9 No. 3 (2010): Jul./Sep.; 371-3751677-3225reponame:Brazilian journal of oral sciences (Online)instname:Universidade Estadual de Campinas (UNICAMP)instacron:UNICAMPenghttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641800/9298Pereira, Jefferson RicardoValle, Accácio Lins doJuvêncio, Talita MagroGhizoni, Janaina SalomonSó, Marcus Vinícius de Reisinfo:eu-repo/semantics/openAccess2016-02-25T09:12:39Zoai:ojs.periodicos.sbu.unicamp.br:article/8641800Revistahttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/PUBhttps://periodicos.sbu.unicamp.br/ojs/index.php/bjos/oaibrjorals@fop.unicamp.br||brjorals@fop.unicamp.br1677-32251677-3217opendoar:2016-02-25T09:12:39Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)false
dc.title.none.fl_str_mv Effect of post length on endodontically treated teeth: fracture resistance
title Effect of post length on endodontically treated teeth: fracture resistance
spellingShingle Effect of post length on endodontically treated teeth: fracture resistance
Pereira, Jefferson Ricardo
Post and core technique
Composite resin
Fracture strength
Odontology
title_short Effect of post length on endodontically treated teeth: fracture resistance
title_full Effect of post length on endodontically treated teeth: fracture resistance
title_fullStr Effect of post length on endodontically treated teeth: fracture resistance
title_full_unstemmed Effect of post length on endodontically treated teeth: fracture resistance
title_sort Effect of post length on endodontically treated teeth: fracture resistance
author Pereira, Jefferson Ricardo
author_facet Pereira, Jefferson Ricardo
Valle, Accácio Lins do
Juvêncio, Talita Magro
Ghizoni, Janaina Salomon
Só, Marcus Vinícius de Reis
author_role author
author2 Valle, Accácio Lins do
Juvêncio, Talita Magro
Ghizoni, Janaina Salomon
Só, Marcus Vinícius de Reis
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pereira, Jefferson Ricardo
Valle, Accácio Lins do
Juvêncio, Talita Magro
Ghizoni, Janaina Salomon
Só, Marcus Vinícius de Reis
dc.subject.por.fl_str_mv Post and core technique
Composite resin
Fracture strength
Odontology
topic Post and core technique
Composite resin
Fracture strength
Odontology
description Aim: This study compared the fracture resistance of endodontically treated teeth restored with posts and cores systems with different post lengths. Methods: Sixty extracted intact canines were randomly divided in 6 groups of 10 teeth each, as follows: groups 1, 2 and 3 were restored with custom cast post-and-core, and groups 4, 5 and 6 were restored with prefabricated post and composite resin core, with different post lengths (5.0, 7.5 and 10 mm, respectively). A compressive load was applied at a 45-degree angle to the long axis until failure occurred. Results: Two-way analysis of variance (á=0.05) showed statistically significant difference between the groups (p<0.001). However, when the mean fracture forces for the groups were compared (group 1: 254.4 N; groups 2, 3, 4, 5, 6 – 331.7 N, 434.7 N, 405.4 N, 395.6 N and 393.8 N, respectively), no significant differences could be detected among the three groups restored with prefabricated post and group 3. Conclusions: This study showed that an increased post length in teeth restored with prefabricated posts does not significantly increase the fracture resistance of endodontically treated teeth. On the other hand, endodontically treated teeth restored with custom cast-post and core showed significant increase on fracture resistance when the post length is increased.
publishDate 2015
dc.date.none.fl_str_mv 2015-11-18
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641800
10.20396/bjos.v9i3.8641800
url https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641800
identifier_str_mv 10.20396/bjos.v9i3.8641800
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641800/9298
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual de Campinas
publisher.none.fl_str_mv Universidade Estadual de Campinas
dc.source.none.fl_str_mv Brazilian Journal of Oral Sciences; v. 9 n. 3 (2010): Jul./Sep.; 371-375
Brazilian Journal of Oral Sciences; Vol. 9 No. 3 (2010): Jul./Sep.; 371-375
1677-3225
reponame:Brazilian journal of oral sciences (Online)
instname:Universidade Estadual de Campinas (UNICAMP)
instacron:UNICAMP
instname_str Universidade Estadual de Campinas (UNICAMP)
instacron_str UNICAMP
institution UNICAMP
reponame_str Brazilian journal of oral sciences (Online)
collection Brazilian journal of oral sciences (Online)
repository.name.fl_str_mv Brazilian journal of oral sciences (Online) - Universidade Estadual de Campinas (UNICAMP)
repository.mail.fl_str_mv brjorals@fop.unicamp.br||brjorals@fop.unicamp.br
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