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Effect of the smear layer in the removal of calcium hydroxide from root canal walls

BACKGROUND: The aim of this study was to investigate whether the smear layer influences the removal of calcium hydroxide from the root canal with manual or rotary instruments. MATERIALS AND METHODS: The root canals of 48 freshly extracted single-rooted maxillary incisors were prepared to apical size...

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Autores principales: Arslan, Hakan, Topcuoglu, H Sinan, Karatas, Ertugrul, Barutcigil, Cagatay, Aladag, Halit, Topcu, K Melten
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3339002/
https://www.ncbi.nlm.nih.gov/pubmed/22557806
http://dx.doi.org/10.4103/0972-0707.94574
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author Arslan, Hakan
Topcuoglu, H Sinan
Karatas, Ertugrul
Barutcigil, Cagatay
Aladag, Halit
Topcu, K Melten
author_facet Arslan, Hakan
Topcuoglu, H Sinan
Karatas, Ertugrul
Barutcigil, Cagatay
Aladag, Halit
Topcu, K Melten
author_sort Arslan, Hakan
collection PubMed
description BACKGROUND: The aim of this study was to investigate whether the smear layer influences the removal of calcium hydroxide from the root canal with manual or rotary instruments. MATERIALS AND METHODS: The root canals of 48 freshly extracted single-rooted maxillary incisors were prepared to apical size 40 (n=40) and finally irrigated with sodium hypochlorite (group A), or ethylene diamine tetra acetic acid (EDTA) followed by sodium hypo chlorite (group B). 20 teeth were assigned to each group, while the remaining eight teeth served as positive and negative controls. Each group was divided into two subgroups of 10 teeth (subgroup I - calcium hydroxide was removed with master apical file; subgroup II - with profile file); and, in all removal procedures, citric acid was used for irrigation. The percentage of calcium hydroxide- [Ca(OH)(2)] coated surface area was calculated by image processing analysis. RESULTS: Considering the root canal as a whole, the removal of Ca(OH)(2) from the dentinal walls in group B showed significantly better results (P<0.05) as compared to group A. CONCLUSIONS: Under the conditions of this study, it can be concluded that the smear layer is important in the removal of calcium hydroxide.
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spelling pubmed-33390022012-05-03 Effect of the smear layer in the removal of calcium hydroxide from root canal walls Arslan, Hakan Topcuoglu, H Sinan Karatas, Ertugrul Barutcigil, Cagatay Aladag, Halit Topcu, K Melten J Conserv Dent Original Article BACKGROUND: The aim of this study was to investigate whether the smear layer influences the removal of calcium hydroxide from the root canal with manual or rotary instruments. MATERIALS AND METHODS: The root canals of 48 freshly extracted single-rooted maxillary incisors were prepared to apical size 40 (n=40) and finally irrigated with sodium hypochlorite (group A), or ethylene diamine tetra acetic acid (EDTA) followed by sodium hypo chlorite (group B). 20 teeth were assigned to each group, while the remaining eight teeth served as positive and negative controls. Each group was divided into two subgroups of 10 teeth (subgroup I - calcium hydroxide was removed with master apical file; subgroup II - with profile file); and, in all removal procedures, citric acid was used for irrigation. The percentage of calcium hydroxide- [Ca(OH)(2)] coated surface area was calculated by image processing analysis. RESULTS: Considering the root canal as a whole, the removal of Ca(OH)(2) from the dentinal walls in group B showed significantly better results (P<0.05) as compared to group A. CONCLUSIONS: Under the conditions of this study, it can be concluded that the smear layer is important in the removal of calcium hydroxide. Medknow Publications & Media Pvt Ltd 2012 /pmc/articles/PMC3339002/ /pubmed/22557806 http://dx.doi.org/10.4103/0972-0707.94574 Text en Copyright: © Journal of Conservative Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Arslan, Hakan
Topcuoglu, H Sinan
Karatas, Ertugrul
Barutcigil, Cagatay
Aladag, Halit
Topcu, K Melten
Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title_full Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title_fullStr Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title_full_unstemmed Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title_short Effect of the smear layer in the removal of calcium hydroxide from root canal walls
title_sort effect of the smear layer in the removal of calcium hydroxide from root canal walls
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3339002/
https://www.ncbi.nlm.nih.gov/pubmed/22557806
http://dx.doi.org/10.4103/0972-0707.94574
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