Effect of post length on endodontically treated teeth: fracture resistance
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , |
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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oai:ojs.periodicos.sbu.unicamp.br:article/8641800 |
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UNICAMP-8 |
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Brazilian journal of oral sciences (Online) |
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|
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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 |
_version_ |
1800216399997566976 |