Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402014000300232 |
Resumo: | The aim of this study was to evaluate the root canal anatomy of mandibular incisors before and after endodontic instrumentation, identifying regions inaccessible to the action of files (Critical instrumentation Area - CA) in a three-dimensional perspective. Thirty human mandibular central incisors were selected, assigned to two groups (n=15) and instrumented using ProTaper Universal rotary files. In the RX group, longitudinal digital radiographic images were obtained in the buccolingual (BL) and mesiodistal (MD) views. In the CT group, cross-sectional micro-computed tomography (µCT) images were obtained at 3, 9 and 15 mm from the apex. The canal area of the specimens was evaluated before and after instrumentation using digital images from each group. Data were analyzed using t-test, one-way ANOVA with subdivided parcels and Tukey's test (α=0.05). The canal area found in the MD radiographs was larger than in the BL radiographs, which was also confirmed in the transversal images (p<0.01). The CA was only detected in the MD radiographs and µCT scans. On the root canal configuration, a continuous reduction in the canal conicity was observed in BL radiographs, while in MD view there was a constriction at the cervical third and subsequent increase at the middle third (p<0.01). The conical shape of the root canal was observed only in the BL view. The canal enlargement in BL radiographs was not indicative of homogeneous instrumentation, since unprepared areas (CA) were also verified on the buccal and lingual walls in different images |
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Brazilian Dental Journal |
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Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparationmicro-computed tomographycritical instrumentation areadigital radiographyendodontic preparationroot canal anatomyThe aim of this study was to evaluate the root canal anatomy of mandibular incisors before and after endodontic instrumentation, identifying regions inaccessible to the action of files (Critical instrumentation Area - CA) in a three-dimensional perspective. Thirty human mandibular central incisors were selected, assigned to two groups (n=15) and instrumented using ProTaper Universal rotary files. In the RX group, longitudinal digital radiographic images were obtained in the buccolingual (BL) and mesiodistal (MD) views. In the CT group, cross-sectional micro-computed tomography (µCT) images were obtained at 3, 9 and 15 mm from the apex. The canal area of the specimens was evaluated before and after instrumentation using digital images from each group. Data were analyzed using t-test, one-way ANOVA with subdivided parcels and Tukey's test (α=0.05). The canal area found in the MD radiographs was larger than in the BL radiographs, which was also confirmed in the transversal images (p<0.01). The CA was only detected in the MD radiographs and µCT scans. On the root canal configuration, a continuous reduction in the canal conicity was observed in BL radiographs, while in MD view there was a constriction at the cervical third and subsequent increase at the middle third (p<0.01). The conical shape of the root canal was observed only in the BL view. The canal enlargement in BL radiographs was not indicative of homogeneous instrumentation, since unprepared areas (CA) were also verified on the buccal and lingual walls in different imagesFundação Odontológica de Ribeirão Preto2014-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402014000300232Brazilian Dental Journal v.25 n.3 2014reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201300013info:eu-repo/semantics/openAccessOliveira,Maria Antonieta Veloso Carvalho deVenâncio,Jessyca FigueiraPereira,Analice GiovaniRaposo,Luís Henrique AraújoBiffi,João Carlos Gabriellieng2014-09-16T00:00:00Zoai:scielo:S0103-64402014000300232Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2014-09-16T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
title |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
spellingShingle |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation Oliveira,Maria Antonieta Veloso Carvalho de micro-computed tomography critical instrumentation area digital radiography endodontic preparation root canal anatomy |
title_short |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
title_full |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
title_fullStr |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
title_full_unstemmed |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
title_sort |
Critical Instrumentation Area: Influence of Root Canal Anatomy on the Endodontic Preparation |
author |
Oliveira,Maria Antonieta Veloso Carvalho de |
author_facet |
Oliveira,Maria Antonieta Veloso Carvalho de Venâncio,Jessyca Figueira Pereira,Analice Giovani Raposo,Luís Henrique Araújo Biffi,João Carlos Gabrielli |
author_role |
author |
author2 |
Venâncio,Jessyca Figueira Pereira,Analice Giovani Raposo,Luís Henrique Araújo Biffi,João Carlos Gabrielli |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Oliveira,Maria Antonieta Veloso Carvalho de Venâncio,Jessyca Figueira Pereira,Analice Giovani Raposo,Luís Henrique Araújo Biffi,João Carlos Gabrielli |
dc.subject.por.fl_str_mv |
micro-computed tomography critical instrumentation area digital radiography endodontic preparation root canal anatomy |
topic |
micro-computed tomography critical instrumentation area digital radiography endodontic preparation root canal anatomy |
description |
The aim of this study was to evaluate the root canal anatomy of mandibular incisors before and after endodontic instrumentation, identifying regions inaccessible to the action of files (Critical instrumentation Area - CA) in a three-dimensional perspective. Thirty human mandibular central incisors were selected, assigned to two groups (n=15) and instrumented using ProTaper Universal rotary files. In the RX group, longitudinal digital radiographic images were obtained in the buccolingual (BL) and mesiodistal (MD) views. In the CT group, cross-sectional micro-computed tomography (µCT) images were obtained at 3, 9 and 15 mm from the apex. The canal area of the specimens was evaluated before and after instrumentation using digital images from each group. Data were analyzed using t-test, one-way ANOVA with subdivided parcels and Tukey's test (α=0.05). The canal area found in the MD radiographs was larger than in the BL radiographs, which was also confirmed in the transversal images (p<0.01). The CA was only detected in the MD radiographs and µCT scans. On the root canal configuration, a continuous reduction in the canal conicity was observed in BL radiographs, while in MD view there was a constriction at the cervical third and subsequent increase at the middle third (p<0.01). The conical shape of the root canal was observed only in the BL view. The canal enlargement in BL radiographs was not indicative of homogeneous instrumentation, since unprepared areas (CA) were also verified on the buccal and lingual walls in different images |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402014000300232 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402014000300232 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440201300013 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.25 n.3 2014 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204093095608320 |