Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study
Considering that instrumentation of the apical foramen has been suggested for root canal infection control, this study analyzed the relationship between the files that bind at the apical foramen and the foraminal openings in 50 maxillary central incisors. After preparation of the pulp chamber, access to the canal was obtained with #1 and 2 LA Axxess and K-files with tip cut were inserted up to the apical foramen until binding was felt. The files were fixed with methyl cyanoacrylate and the tooth-file sets were cross-sectioned 10 mm short of the apex. Scanning electron microscopic analysis was carried out and files and foraminal areas were measured using Image Tool software. Statistically significant difference (p<0.0001) was found between files and the apical foraminal areas. The mean foraminal area was 3.8 times larger than the mean file area. The results of this study suggest that it would require 4 files of greater size beyond the one that bound to the foramen in order to allow a better relationship between files and apical openings of maxillary central incisors.
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Fundação Odontológica de Ribeirão Preto
2011
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oai:scielo:S0103-644020110006000032011-12-15Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM studySouza,Ronaldo AraújoSousa,Yara T. Corrêa SilvaFigueiredo,José Antônio Poli deDantas,João Da Costa PintoColombo,SuelyPécora,Jesus Djalma Apical foramen apical patency infection control root canal instrumentation Considering that instrumentation of the apical foramen has been suggested for root canal infection control, this study analyzed the relationship between the files that bind at the apical foramen and the foraminal openings in 50 maxillary central incisors. After preparation of the pulp chamber, access to the canal was obtained with #1 and 2 LA Axxess and K-files with tip cut were inserted up to the apical foramen until binding was felt. The files were fixed with methyl cyanoacrylate and the tooth-file sets were cross-sectioned 10 mm short of the apex. Scanning electron microscopic analysis was carried out and files and foraminal areas were measured using Image Tool software. Statistically significant difference (p<0.0001) was found between files and the apical foraminal areas. The mean foraminal area was 3.8 times larger than the mean file area. The results of this study suggest that it would require 4 files of greater size beyond the one that bound to the foramen in order to allow a better relationship between files and apical openings of maxillary central incisors.info:eu-repo/semantics/openAccessFundação Odontológica de Ribeirão PretoBrazilian Dental Journal v.22 n.6 20112011-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402011000600003en10.1590/S0103-64402011000600003 |
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Souza,Ronaldo Araújo Sousa,Yara T. Corrêa Silva Figueiredo,José Antônio Poli de Dantas,João Da Costa Pinto Colombo,Suely Pécora,Jesus Djalma |
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Souza,Ronaldo Araújo Sousa,Yara T. Corrêa Silva Figueiredo,José Antônio Poli de Dantas,João Da Costa Pinto Colombo,Suely Pécora,Jesus Djalma Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
author_facet |
Souza,Ronaldo Araújo Sousa,Yara T. Corrêa Silva Figueiredo,José Antônio Poli de Dantas,João Da Costa Pinto Colombo,Suely Pécora,Jesus Djalma |
author_sort |
Souza,Ronaldo Araújo |
title |
Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
title_short |
Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
title_full |
Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
title_fullStr |
Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
title_full_unstemmed |
Relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a SEM study |
title_sort |
relationship between files that bind at the apical foramen and foramen openings in maxillary central incisors - a sem study |
description |
Considering that instrumentation of the apical foramen has been suggested for root canal infection control, this study analyzed the relationship between the files that bind at the apical foramen and the foraminal openings in 50 maxillary central incisors. After preparation of the pulp chamber, access to the canal was obtained with #1 and 2 LA Axxess and K-files with tip cut were inserted up to the apical foramen until binding was felt. The files were fixed with methyl cyanoacrylate and the tooth-file sets were cross-sectioned 10 mm short of the apex. Scanning electron microscopic analysis was carried out and files and foraminal areas were measured using Image Tool software. Statistically significant difference (p<0.0001) was found between files and the apical foraminal areas. The mean foraminal area was 3.8 times larger than the mean file area. The results of this study suggest that it would require 4 files of greater size beyond the one that bound to the foramen in order to allow a better relationship between files and apical openings of maxillary central incisors. |
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Fundação Odontológica de Ribeirão Preto |
publishDate |
2011 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402011000600003 |
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