Evaluation of the apical infiltration after root canal disruption and obturation
Main Author: | |
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Publication Date: | 2008 |
Other Authors: | , , , , |
Format: | Article |
Language: | eng |
Source: | Journal of applied oral science (Online) |
Download full: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572008000500008 |
Summary: | The aim of this study was to evaluate two root canal filling techniques used in teeth that had their apical foramen disrupted and compare the apical infiltration with an ideal clinical situation. Twenty-seven freshly extracted single-rooted teeth were selected and radiographed to confirm the existence of a single and straight root canal. The crowns were removed at a mean distance of 11 mm from the apex. The teeth had the root canals instrumented and were randomly assigned to 3 groups (n=9): ND group - root canals were filled using the lateral compaction technique and no disruption was performed; DRF group - the apical constriction was disrupted by advancing a #40 K-file 1 mm beyond the original working length, the canals were reinstrumented to create an apical ledge at 1 mm from the apical foramen and were obturated with a master gutta-percha cone with same size as the last file used for reinstrumentation; DF group - the teeth had the apical constriction disrupted and the canals were obturated with a master gutta-percha cone that fit at 1 mm from the apex. The teeth were submitted to dye leakage test with Rhodamine B for 7 days, using vaccum on the initial 5 min. The teeth were sectioned longitudinally and the leakage was measured in a linear fashion from apex to crown. There was no statistically significant difference (p>0.05) between the groups that had the apical foramen disrupted (DF, DRF), but significant difference was found between the disrupted groups and the non-disrupted one (p<0.01). In conclusion, none of the evaluated techniques was able to prevent apical infiltration, so working length so the working length determination has to be established and maintained carefully. |
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Evaluation of the apical infiltration after root canal disruption and obturationRoot canal fillingApical infiltrationApical disruptionThe aim of this study was to evaluate two root canal filling techniques used in teeth that had their apical foramen disrupted and compare the apical infiltration with an ideal clinical situation. Twenty-seven freshly extracted single-rooted teeth were selected and radiographed to confirm the existence of a single and straight root canal. The crowns were removed at a mean distance of 11 mm from the apex. The teeth had the root canals instrumented and were randomly assigned to 3 groups (n=9): ND group - root canals were filled using the lateral compaction technique and no disruption was performed; DRF group - the apical constriction was disrupted by advancing a #40 K-file 1 mm beyond the original working length, the canals were reinstrumented to create an apical ledge at 1 mm from the apical foramen and were obturated with a master gutta-percha cone with same size as the last file used for reinstrumentation; DF group - the teeth had the apical constriction disrupted and the canals were obturated with a master gutta-percha cone that fit at 1 mm from the apex. The teeth were submitted to dye leakage test with Rhodamine B for 7 days, using vaccum on the initial 5 min. The teeth were sectioned longitudinally and the leakage was measured in a linear fashion from apex to crown. There was no statistically significant difference (p>0.05) between the groups that had the apical foramen disrupted (DF, DRF), but significant difference was found between the disrupted groups and the non-disrupted one (p<0.01). In conclusion, none of the evaluated techniques was able to prevent apical infiltration, so working length so the working length determination has to be established and maintained carefully.Faculdade De Odontologia De Bauru - USP2008-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572008000500008Journal of Applied Oral Science v.16 n.5 2008reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S1678-77572008000500008info:eu-repo/semantics/openAccessGomes-Filho,João EduardoHopp,Renato NicolásBernabé,Pedro Felício EstradaNery,Mauro JuvenalOtoboni Filho,José ArlindoDezan Júnior,Elóieng2008-10-10T00:00:00Zoai:scielo:S1678-77572008000500008Revistahttp://www.scielo.br/jaosPUBhttps://old.scielo.br/oai/scielo-oai.php||jaos@usp.br1678-77651678-7757opendoar:2008-10-10T00:00Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Evaluation of the apical infiltration after root canal disruption and obturation |
title |
Evaluation of the apical infiltration after root canal disruption and obturation |
spellingShingle |
Evaluation of the apical infiltration after root canal disruption and obturation Gomes-Filho,João Eduardo Root canal filling Apical infiltration Apical disruption |
title_short |
Evaluation of the apical infiltration after root canal disruption and obturation |
title_full |
Evaluation of the apical infiltration after root canal disruption and obturation |
title_fullStr |
Evaluation of the apical infiltration after root canal disruption and obturation |
title_full_unstemmed |
Evaluation of the apical infiltration after root canal disruption and obturation |
title_sort |
Evaluation of the apical infiltration after root canal disruption and obturation |
author |
Gomes-Filho,João Eduardo |
author_facet |
Gomes-Filho,João Eduardo Hopp,Renato Nicolás Bernabé,Pedro Felício Estrada Nery,Mauro Juvenal Otoboni Filho,José Arlindo Dezan Júnior,Elói |
author_role |
author |
author2 |
Hopp,Renato Nicolás Bernabé,Pedro Felício Estrada Nery,Mauro Juvenal Otoboni Filho,José Arlindo Dezan Júnior,Elói |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Gomes-Filho,João Eduardo Hopp,Renato Nicolás Bernabé,Pedro Felício Estrada Nery,Mauro Juvenal Otoboni Filho,José Arlindo Dezan Júnior,Elói |
dc.subject.por.fl_str_mv |
Root canal filling Apical infiltration Apical disruption |
topic |
Root canal filling Apical infiltration Apical disruption |
description |
The aim of this study was to evaluate two root canal filling techniques used in teeth that had their apical foramen disrupted and compare the apical infiltration with an ideal clinical situation. Twenty-seven freshly extracted single-rooted teeth were selected and radiographed to confirm the existence of a single and straight root canal. The crowns were removed at a mean distance of 11 mm from the apex. The teeth had the root canals instrumented and were randomly assigned to 3 groups (n=9): ND group - root canals were filled using the lateral compaction technique and no disruption was performed; DRF group - the apical constriction was disrupted by advancing a #40 K-file 1 mm beyond the original working length, the canals were reinstrumented to create an apical ledge at 1 mm from the apical foramen and were obturated with a master gutta-percha cone with same size as the last file used for reinstrumentation; DF group - the teeth had the apical constriction disrupted and the canals were obturated with a master gutta-percha cone that fit at 1 mm from the apex. The teeth were submitted to dye leakage test with Rhodamine B for 7 days, using vaccum on the initial 5 min. The teeth were sectioned longitudinally and the leakage was measured in a linear fashion from apex to crown. There was no statistically significant difference (p>0.05) between the groups that had the apical foramen disrupted (DF, DRF), but significant difference was found between the disrupted groups and the non-disrupted one (p<0.01). In conclusion, none of the evaluated techniques was able to prevent apical infiltration, so working length so the working length determination has to be established and maintained carefully. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10-01 |
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=S1678-77572008000500008 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572008000500008 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1678-77572008000500008 |
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 |
Faculdade De Odontologia De Bauru - USP |
publisher.none.fl_str_mv |
Faculdade De Odontologia De Bauru - USP |
dc.source.none.fl_str_mv |
Journal of Applied Oral Science v.16 n.5 2008 reponame:Journal of applied oral science (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Journal of applied oral science (Online) |
collection |
Journal of applied oral science (Online) |
repository.name.fl_str_mv |
Journal of applied oral science (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
||jaos@usp.br |
_version_ |
1748936435191250944 |