Scanning electron microscopic evaluation of the root apex of mandibular premolars.

Detalhes bibliográficos
Autor(a) principal: Sant'Anna-Júnior, Arnaldo
Data de Publicação: 2010
Outros Autores: Duarte, Marco A H, Guerreiro-Tanomaru, Juliane M, Tanomaru-Filho, Mário
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://www.actaodontologicalat.com/archivo/v23n1/fulltext/articulo7.pdf
http://hdl.handle.net/11449/71873
Resumo: This aim of this study was to evaluate the root apex of mandibular premolars regarding the presence of main and accessory foramina. The root apexes from fifty extracted mandibular single-rooted premolars were examined by scanning electron microscopy (SEM). The apical openings had their diameter measured and were identified as main or accessory foramina. Double blinded and calibrated examiners analyzed the SEM photographs and classified the premolar roots into three types, based on the presence and size of the apical openings. Type I: roots with a single main apical foramen and no accessory foramina; type II: roots with a main foramen and one or more accessory foramina; type III: roots with accessory foramina only. For the first premolar, 16 roots were classified as type I (48.48%), 4 as type II (12.12%) and 13 as type III (39.40%). For the second premolars, 10 roots were classified as type I (58.83%), 3 as type II (17.65%) and 4 as type III (23.52%). The high incidence of roots with accessory foramina only (type III), mainly in the first premolar, warns of the need for caution during working length determination and apical debridement.
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spelling Scanning electron microscopic evaluation of the root apex of mandibular premolars.humanmandiblepremolar toothscanning electron microscopytooth rootultrastructureBicuspidHumansMandibleMicroscopy, Electron, ScanningTooth ApexThis aim of this study was to evaluate the root apex of mandibular premolars regarding the presence of main and accessory foramina. The root apexes from fifty extracted mandibular single-rooted premolars were examined by scanning electron microscopy (SEM). The apical openings had their diameter measured and were identified as main or accessory foramina. Double blinded and calibrated examiners analyzed the SEM photographs and classified the premolar roots into three types, based on the presence and size of the apical openings. Type I: roots with a single main apical foramen and no accessory foramina; type II: roots with a main foramen and one or more accessory foramina; type III: roots with accessory foramina only. For the first premolar, 16 roots were classified as type I (48.48%), 4 as type II (12.12%) and 13 as type III (39.40%). For the second premolars, 10 roots were classified as type I (58.83%), 3 as type II (17.65%) and 4 as type III (23.52%). The high incidence of roots with accessory foramina only (type III), mainly in the first premolar, warns of the need for caution during working length determination and apical debridement.Universidade Estadual Paulista (Unesp)Sant'Anna-Júnior, ArnaldoDuarte, Marco A HGuerreiro-Tanomaru, Juliane MTanomaru-Filho, Mário2014-05-27T11:24:47Z2014-05-27T11:24:47Z2010-09-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article38-41http://www.actaodontologicalat.com/archivo/v23n1/fulltext/articulo7.pdfActa odontológica latinoamericana : AOL, v. 23, n. 1, p. 38-41, 2010.0326-4815http://hdl.handle.net/11449/718732-s2.0-77956195203Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengActa Odontológica Latinoamericana (AOL)0,264info:eu-repo/semantics/openAccess2024-09-27T18:05:03Zoai:repositorio.unesp.br:11449/71873Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-27T18:05:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Scanning electron microscopic evaluation of the root apex of mandibular premolars.
title Scanning electron microscopic evaluation of the root apex of mandibular premolars.
spellingShingle Scanning electron microscopic evaluation of the root apex of mandibular premolars.
Sant'Anna-Júnior, Arnaldo
human
mandible
premolar tooth
scanning electron microscopy
tooth root
ultrastructure
Bicuspid
Humans
Mandible
Microscopy, Electron, Scanning
Tooth Apex
title_short Scanning electron microscopic evaluation of the root apex of mandibular premolars.
title_full Scanning electron microscopic evaluation of the root apex of mandibular premolars.
title_fullStr Scanning electron microscopic evaluation of the root apex of mandibular premolars.
title_full_unstemmed Scanning electron microscopic evaluation of the root apex of mandibular premolars.
title_sort Scanning electron microscopic evaluation of the root apex of mandibular premolars.
author Sant'Anna-Júnior, Arnaldo
author_facet Sant'Anna-Júnior, Arnaldo
Duarte, Marco A H
Guerreiro-Tanomaru, Juliane M
Tanomaru-Filho, Mário
author_role author
author2 Duarte, Marco A H
Guerreiro-Tanomaru, Juliane M
Tanomaru-Filho, Mário
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Sant'Anna-Júnior, Arnaldo
Duarte, Marco A H
Guerreiro-Tanomaru, Juliane M
Tanomaru-Filho, Mário
dc.subject.por.fl_str_mv human
mandible
premolar tooth
scanning electron microscopy
tooth root
ultrastructure
Bicuspid
Humans
Mandible
Microscopy, Electron, Scanning
Tooth Apex
topic human
mandible
premolar tooth
scanning electron microscopy
tooth root
ultrastructure
Bicuspid
Humans
Mandible
Microscopy, Electron, Scanning
Tooth Apex
description This aim of this study was to evaluate the root apex of mandibular premolars regarding the presence of main and accessory foramina. The root apexes from fifty extracted mandibular single-rooted premolars were examined by scanning electron microscopy (SEM). The apical openings had their diameter measured and were identified as main or accessory foramina. Double blinded and calibrated examiners analyzed the SEM photographs and classified the premolar roots into three types, based on the presence and size of the apical openings. Type I: roots with a single main apical foramen and no accessory foramina; type II: roots with a main foramen and one or more accessory foramina; type III: roots with accessory foramina only. For the first premolar, 16 roots were classified as type I (48.48%), 4 as type II (12.12%) and 13 as type III (39.40%). For the second premolars, 10 roots were classified as type I (58.83%), 3 as type II (17.65%) and 4 as type III (23.52%). The high incidence of roots with accessory foramina only (type III), mainly in the first premolar, warns of the need for caution during working length determination and apical debridement.
publishDate 2010
dc.date.none.fl_str_mv 2010-09-07
2014-05-27T11:24:47Z
2014-05-27T11:24:47Z
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://www.actaodontologicalat.com/archivo/v23n1/fulltext/articulo7.pdf
Acta odontológica latinoamericana : AOL, v. 23, n. 1, p. 38-41, 2010.
0326-4815
http://hdl.handle.net/11449/71873
2-s2.0-77956195203
url http://www.actaodontologicalat.com/archivo/v23n1/fulltext/articulo7.pdf
http://hdl.handle.net/11449/71873
identifier_str_mv Acta odontológica latinoamericana : AOL, v. 23, n. 1, p. 38-41, 2010.
0326-4815
2-s2.0-77956195203
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Acta Odontológica Latinoamericana (AOL)
0,264
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 38-41
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 repositoriounesp@unesp.br
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