Scanning electron microscopic evaluation of the root apex of mandibular premolars.
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , |
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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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 |
_version_ |
1813546530967126016 |