Cargando…
Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study
The purpose of this in vitro study was to evaluate the shaping ability of reciprocating and continuous rotary systems after root canal retreatment. After preparation and root canal filling, mesial canals of 54 mandibular molars were distributed into 3 groups (n=18), according to the filling material...
Autores principales: | , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Fundação Odontológica de Ribeirão Preto
2022
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9645160/ https://www.ncbi.nlm.nih.gov/pubmed/35508032 http://dx.doi.org/10.1590/0103-6440202204772 |
_version_ | 1784826907117748224 |
---|---|
author | Suzuki, Eduardo Hideki Sponchiado-Júnior, Emílio Carlos Pandolfo, Mariana Travi Garcia, Lucas da Fonseca Roberti de Carvalho, Fredson Márcio Acris Marques, André Augusto Franco |
author_facet | Suzuki, Eduardo Hideki Sponchiado-Júnior, Emílio Carlos Pandolfo, Mariana Travi Garcia, Lucas da Fonseca Roberti de Carvalho, Fredson Márcio Acris Marques, André Augusto Franco |
author_sort | Suzuki, Eduardo Hideki |
collection | PubMed |
description | The purpose of this in vitro study was to evaluate the shaping ability of reciprocating and continuous rotary systems after root canal retreatment. After preparation and root canal filling, mesial canals of 54 mandibular molars were distributed into 3 groups (n=18), according to the filling material removal and re-instrumentation protocols: WOG group - WaveOne Gold system; PTN group - ProTaper Next system; and PTU group - ProTaper Universal system. Cone-beam computed tomographic (CBCT) images acquisition of the mesial root canals was performed at different moments: (1) before instrumentation (unprepared root canals), (2) after preparation and filling, (3) after filling material removal and (4) re-instrumentation. The apical transportation (AT), centering ability (CA) and change in root canal diameter were assessed by CBCT analysis. The remaining filling material quantification was performed by radiographic examination. The statistical analyses were performed using the 3-way ANOVA, Tukey-Kramer, Kruskal-Wallis and Dunn multiple Comparison tests (p<0.05). The tested instruments did not show full CA (=1.0). PTN group had greater AT at the 5th mm in comparison with the WOG group (p<0.05). After re-instrumentation, WOG group had greater root canal diameter change at the 1st and 5th mm than PTN and PTU groups (p<0.05). There was no significant difference among groups when comparing the amount of remaining filling material after re-instrumentation (p>0.05). The tested systems provided minimal alteration in root canal morphology at the apical portion after root canal retreatment. However, WOG promoted greater change in root canal diameter. |
format | Online Article Text |
id | pubmed-9645160 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | Fundação Odontológica de Ribeirão Preto |
record_format | MEDLINE/PubMed |
spelling | pubmed-96451602022-11-14 Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study Suzuki, Eduardo Hideki Sponchiado-Júnior, Emílio Carlos Pandolfo, Mariana Travi Garcia, Lucas da Fonseca Roberti de Carvalho, Fredson Márcio Acris Marques, André Augusto Franco Braz Dent J Article The purpose of this in vitro study was to evaluate the shaping ability of reciprocating and continuous rotary systems after root canal retreatment. After preparation and root canal filling, mesial canals of 54 mandibular molars were distributed into 3 groups (n=18), according to the filling material removal and re-instrumentation protocols: WOG group - WaveOne Gold system; PTN group - ProTaper Next system; and PTU group - ProTaper Universal system. Cone-beam computed tomographic (CBCT) images acquisition of the mesial root canals was performed at different moments: (1) before instrumentation (unprepared root canals), (2) after preparation and filling, (3) after filling material removal and (4) re-instrumentation. The apical transportation (AT), centering ability (CA) and change in root canal diameter were assessed by CBCT analysis. The remaining filling material quantification was performed by radiographic examination. The statistical analyses were performed using the 3-way ANOVA, Tukey-Kramer, Kruskal-Wallis and Dunn multiple Comparison tests (p<0.05). The tested instruments did not show full CA (=1.0). PTN group had greater AT at the 5th mm in comparison with the WOG group (p<0.05). After re-instrumentation, WOG group had greater root canal diameter change at the 1st and 5th mm than PTN and PTU groups (p<0.05). There was no significant difference among groups when comparing the amount of remaining filling material after re-instrumentation (p>0.05). The tested systems provided minimal alteration in root canal morphology at the apical portion after root canal retreatment. However, WOG promoted greater change in root canal diameter. Fundação Odontológica de Ribeirão Preto 2022-04-29 /pmc/articles/PMC9645160/ /pubmed/35508032 http://dx.doi.org/10.1590/0103-6440202204772 Text en https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License |
spellingShingle | Article Suzuki, Eduardo Hideki Sponchiado-Júnior, Emílio Carlos Pandolfo, Mariana Travi Garcia, Lucas da Fonseca Roberti de Carvalho, Fredson Márcio Acris Marques, André Augusto Franco Shaping Ability of Reciprocating and Rotary Systems After Root Canal Retreatment: a CBCT Study |
title | Shaping Ability of Reciprocating and Rotary Systems After Root Canal
Retreatment: a CBCT Study |
title_full | Shaping Ability of Reciprocating and Rotary Systems After Root Canal
Retreatment: a CBCT Study |
title_fullStr | Shaping Ability of Reciprocating and Rotary Systems After Root Canal
Retreatment: a CBCT Study |
title_full_unstemmed | Shaping Ability of Reciprocating and Rotary Systems After Root Canal
Retreatment: a CBCT Study |
title_short | Shaping Ability of Reciprocating and Rotary Systems After Root Canal
Retreatment: a CBCT Study |
title_sort | shaping ability of reciprocating and rotary systems after root canal
retreatment: a cbct study |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9645160/ https://www.ncbi.nlm.nih.gov/pubmed/35508032 http://dx.doi.org/10.1590/0103-6440202204772 |
work_keys_str_mv | AT suzukieduardohideki shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy AT sponchiadojunioremiliocarlos shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy AT pandolfomarianatravi shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy AT garcialucasdafonsecaroberti shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy AT decarvalhofredsonmarcioacris shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy AT marquesandreaugustofranco shapingabilityofreciprocatingandrotarysystemsafterrootcanalretreatmentacbctstudy |