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Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment

OBJECTIVES: The aim of the current study was to assess whether the amount of extruded debris differs for straight and severely curved root canals during retreatment using H-files, R-Endo, Reciproc and ProTaper Universal Retreatment (PTU-R) files. Additionally, the area of residual filling material w...

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Autores principales: Serefoglu, Burcu, Kandemir Demirci, Gözde, Miçooğulları Kurt, Seniha, Kaşıkçı Bilgi, İlknur, Çalışkan, Mehmet Kemal
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Academy of Conservative Dentistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7906842/
https://www.ncbi.nlm.nih.gov/pubmed/33680894
http://dx.doi.org/10.5395/rde.2021.46.e5
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author Serefoglu, Burcu
Kandemir Demirci, Gözde
Miçooğulları Kurt, Seniha
Kaşıkçı Bilgi, İlknur
Çalışkan, Mehmet Kemal
author_facet Serefoglu, Burcu
Kandemir Demirci, Gözde
Miçooğulları Kurt, Seniha
Kaşıkçı Bilgi, İlknur
Çalışkan, Mehmet Kemal
author_sort Serefoglu, Burcu
collection PubMed
description OBJECTIVES: The aim of the current study was to assess whether the amount of extruded debris differs for straight and severely curved root canals during retreatment using H-files, R-Endo, Reciproc and ProTaper Universal Retreatment (PTU-R) files. Additionally, the area of residual filling material was evaluated. MATERIALS AND METHODS: Severely curved (n = 104) and straight (n = 104) root canals of maxillary molar teeth were prepared with WaveOne Primary file and obturated with gutta-percha and AH Plus sealer. Root canal filling materials were removed with one of the preparation techniques: group 1: H-file; group 2: R-Endo; group 3: Reciproc; group 4: PTU-R (n = 26). The amount of extruded material and the area of the residual filling material was measured. The data were analyzed with 2-way analysis of variance (ANOVA) and 1-way ANOVA at the 0.05 significance level. RESULTS: Except for Reciproc group (p > 0.05), PTU-R, R-Endo, and H-file systems extruded significantly more debris in severely curved canals (p < 0.05). Each file system caused more residual filling material in severely curved canals than in straight ones (p < 0.05). CONCLUSIONS: All instruments used in this study caused apical debris extrusion. Root canal curvature had an effect on extruded debris, except for Reciproc system. Clinicians should be aware that the difficult morphology of the severely curved root canals is a factor increasing the amount of extruded debris during the retreatment procedure.
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spelling pubmed-79068422021-03-04 Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment Serefoglu, Burcu Kandemir Demirci, Gözde Miçooğulları Kurt, Seniha Kaşıkçı Bilgi, İlknur Çalışkan, Mehmet Kemal Restor Dent Endod Research Article OBJECTIVES: The aim of the current study was to assess whether the amount of extruded debris differs for straight and severely curved root canals during retreatment using H-files, R-Endo, Reciproc and ProTaper Universal Retreatment (PTU-R) files. Additionally, the area of residual filling material was evaluated. MATERIALS AND METHODS: Severely curved (n = 104) and straight (n = 104) root canals of maxillary molar teeth were prepared with WaveOne Primary file and obturated with gutta-percha and AH Plus sealer. Root canal filling materials were removed with one of the preparation techniques: group 1: H-file; group 2: R-Endo; group 3: Reciproc; group 4: PTU-R (n = 26). The amount of extruded material and the area of the residual filling material was measured. The data were analyzed with 2-way analysis of variance (ANOVA) and 1-way ANOVA at the 0.05 significance level. RESULTS: Except for Reciproc group (p > 0.05), PTU-R, R-Endo, and H-file systems extruded significantly more debris in severely curved canals (p < 0.05). Each file system caused more residual filling material in severely curved canals than in straight ones (p < 0.05). CONCLUSIONS: All instruments used in this study caused apical debris extrusion. Root canal curvature had an effect on extruded debris, except for Reciproc system. Clinicians should be aware that the difficult morphology of the severely curved root canals is a factor increasing the amount of extruded debris during the retreatment procedure. The Korean Academy of Conservative Dentistry 2020-12-17 /pmc/articles/PMC7906842/ /pubmed/33680894 http://dx.doi.org/10.5395/rde.2021.46.e5 Text en Copyright © 2021. The Korean Academy of Conservative Dentistry https://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Serefoglu, Burcu
Kandemir Demirci, Gözde
Miçooğulları Kurt, Seniha
Kaşıkçı Bilgi, İlknur
Çalışkan, Mehmet Kemal
Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title_full Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title_fullStr Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title_full_unstemmed Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title_short Impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
title_sort impact of root canal curvature and instrument type on the amount of extruded debris during retreatment
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7906842/
https://www.ncbi.nlm.nih.gov/pubmed/33680894
http://dx.doi.org/10.5395/rde.2021.46.e5
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