Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth

Detalhes bibliográficos
Autor(a) principal: Santini, Manuela Favarin
Data de Publicação: 2014
Outros Autores: Rippe, Marília Pivetta [UNESP], Franciscatto, Gisele Jung, da Rosa, Ricardo Abreu, Valandro, Luiz Felipe, Só, Marcus Vinícius Reis, Bier, Carlos Alexandre Souza
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/0103-6440201302392
http://hdl.handle.net/11449/171664
Resumo: The purpose of this study was to assess the fracture resistance of extensively damaged teeth after two root canal preparation techniques (hand and rotary files) and after two filling techniques (active and passive compaction). Sixty-eight maxillary canines roots with an apical diameter equal to that of a #25 K-file were embedded in acrylic resin and the periodontal ligament was simulated by using a polyether impression material. The roots were randomly distributed into four groups (n=17): hand preparation and active compaction (HA), hand preparation and passive compaction (HP), rotary preparation and active compaction (RA), and rotary preparation and passive compaction (RP). All roots were restored with glass fiber post and metallic crown. The specimens were mechanically cycled (500,000 cycles, 45°, 37°C, 133 N, 2 Hz) and then subjected to a fracture resistance test. A single blinded examiner analyzed the external root surface and classified the failure pattern as favorable or unfavorable. The fracture resistance values ranged between 621.15 N (HP) and 785.71 N (HA). However, the Kruskal-Wallis test did not reveal differences in the fracture resistance values among the four groups (p =0.247). Under the tested conditions, root canal preparation and filling techniques had no influence on the fracture resistance of extensively damaged teeth restored with fiber post and metallic crown.
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spelling Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teethGlass fiber postRoot canal filling techniquesRoot canal preparation techniquesVertical root fractureThe purpose of this study was to assess the fracture resistance of extensively damaged teeth after two root canal preparation techniques (hand and rotary files) and after two filling techniques (active and passive compaction). Sixty-eight maxillary canines roots with an apical diameter equal to that of a #25 K-file were embedded in acrylic resin and the periodontal ligament was simulated by using a polyether impression material. The roots were randomly distributed into four groups (n=17): hand preparation and active compaction (HA), hand preparation and passive compaction (HP), rotary preparation and active compaction (RA), and rotary preparation and passive compaction (RP). All roots were restored with glass fiber post and metallic crown. The specimens were mechanically cycled (500,000 cycles, 45°, 37°C, 133 N, 2 Hz) and then subjected to a fracture resistance test. A single blinded examiner analyzed the external root surface and classified the failure pattern as favorable or unfavorable. The fracture resistance values ranged between 621.15 N (HP) and 785.71 N (HA). However, the Kruskal-Wallis test did not reveal differences in the fracture resistance values among the four groups (p =0.247). Under the tested conditions, root canal preparation and filling techniques had no influence on the fracture resistance of extensively damaged teeth restored with fiber post and metallic crown.Department of Conservative Dentistry, UFRGS - Federal University of Rio Grande do Sul, Porto Alegre, RSDepartment of Dental Materials and Prosthodontics, School of Dentistry of São José dos Campos, UNESP - Univ Estadual Paulista, São José dos Campos, SPDepartment of Stomatology, UFSM - Federal University of Santa Maria, Santa Maria, RSDepartment of Restorative Dentistry, UFSM - Federal University of Santa Maria, Santa Maria, RSDepartment of Dental Materials and Prosthodontics, School of Dentistry of São José dos Campos, UNESP - Univ Estadual Paulista, São José dos Campos, SPUniversidade Estadual Paulista (Unesp)Universidade Federal de Sergipe (UFS)Santini, Manuela FavarinRippe, Marília Pivetta [UNESP]Franciscatto, Gisele Jungda Rosa, Ricardo AbreuValandro, Luiz FelipeSó, Marcus Vinícius ReisBier, Carlos Alexandre Souza2018-12-11T16:56:29Z2018-12-11T16:56:29Z2014-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article129-135application/pdfhttp://dx.doi.org/10.1590/0103-6440201302392Brazilian Dental Journal, v. 25, n. 2, p. 129-135, 2014.1806-47600103-6440http://hdl.handle.net/11449/17166410.1590/0103-6440201302392S0103-644020140002001292-s2.0-84906346254S0103-64402014000200129.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2023-12-09T06:24:40Zoai:repositorio.unesp.br:11449/171664Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:53:03.708513Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
title Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
spellingShingle Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
Santini, Manuela Favarin
Glass fiber post
Root canal filling techniques
Root canal preparation techniques
Vertical root fracture
title_short Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
title_full Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
title_fullStr Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
title_full_unstemmed Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
title_sort Canal preparation and filling techniques do not influence the fracture resistance of extensively damaged teeth
author Santini, Manuela Favarin
author_facet Santini, Manuela Favarin
Rippe, Marília Pivetta [UNESP]
Franciscatto, Gisele Jung
da Rosa, Ricardo Abreu
Valandro, Luiz Felipe
Só, Marcus Vinícius Reis
Bier, Carlos Alexandre Souza
author_role author
author2 Rippe, Marília Pivetta [UNESP]
Franciscatto, Gisele Jung
da Rosa, Ricardo Abreu
Valandro, Luiz Felipe
Só, Marcus Vinícius Reis
Bier, Carlos Alexandre Souza
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
Universidade Federal de Sergipe (UFS)
dc.contributor.author.fl_str_mv Santini, Manuela Favarin
Rippe, Marília Pivetta [UNESP]
Franciscatto, Gisele Jung
da Rosa, Ricardo Abreu
Valandro, Luiz Felipe
Só, Marcus Vinícius Reis
Bier, Carlos Alexandre Souza
dc.subject.por.fl_str_mv Glass fiber post
Root canal filling techniques
Root canal preparation techniques
Vertical root fracture
topic Glass fiber post
Root canal filling techniques
Root canal preparation techniques
Vertical root fracture
description The purpose of this study was to assess the fracture resistance of extensively damaged teeth after two root canal preparation techniques (hand and rotary files) and after two filling techniques (active and passive compaction). Sixty-eight maxillary canines roots with an apical diameter equal to that of a #25 K-file were embedded in acrylic resin and the periodontal ligament was simulated by using a polyether impression material. The roots were randomly distributed into four groups (n=17): hand preparation and active compaction (HA), hand preparation and passive compaction (HP), rotary preparation and active compaction (RA), and rotary preparation and passive compaction (RP). All roots were restored with glass fiber post and metallic crown. The specimens were mechanically cycled (500,000 cycles, 45°, 37°C, 133 N, 2 Hz) and then subjected to a fracture resistance test. A single blinded examiner analyzed the external root surface and classified the failure pattern as favorable or unfavorable. The fracture resistance values ranged between 621.15 N (HP) and 785.71 N (HA). However, the Kruskal-Wallis test did not reveal differences in the fracture resistance values among the four groups (p =0.247). Under the tested conditions, root canal preparation and filling techniques had no influence on the fracture resistance of extensively damaged teeth restored with fiber post and metallic crown.
publishDate 2014
dc.date.none.fl_str_mv 2014-01-01
2018-12-11T16:56:29Z
2018-12-11T16:56:29Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/0103-6440201302392
Brazilian Dental Journal, v. 25, n. 2, p. 129-135, 2014.
1806-4760
0103-6440
http://hdl.handle.net/11449/171664
10.1590/0103-6440201302392
S0103-64402014000200129
2-s2.0-84906346254
S0103-64402014000200129.pdf
url http://dx.doi.org/10.1590/0103-6440201302392
http://hdl.handle.net/11449/171664
identifier_str_mv Brazilian Dental Journal, v. 25, n. 2, p. 129-135, 2014.
1806-4760
0103-6440
10.1590/0103-6440201302392
S0103-64402014000200129
2-s2.0-84906346254
S0103-64402014000200129.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian Dental Journal
0,476
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 129-135
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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