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The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation
OBJECTIVE: The aim of the present study was to investigate the incidence of dentinal microcracks caused by different preparation techniques. MATERIALS AND METHODS: 120 extracted human mandibular incisor teeth were divided into five experimental groups and one control group (n = 20): Group 1: Hand pr...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Medknow Publications & Media Pvt Ltd
2015
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4319298/ https://www.ncbi.nlm.nih.gov/pubmed/25713483 http://dx.doi.org/10.4103/1305-7456.149638 |
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author | Ustun, Yakup Aslan, Tugrul Sagsen, Burak Kesim, Bertan |
author_facet | Ustun, Yakup Aslan, Tugrul Sagsen, Burak Kesim, Bertan |
author_sort | Ustun, Yakup |
collection | PubMed |
description | OBJECTIVE: The aim of the present study was to investigate the incidence of dentinal microcracks caused by different preparation techniques. MATERIALS AND METHODS: 120 extracted human mandibular incisor teeth were divided into five experimental groups and one control group (n = 20): Group 1: Hand preparation with balanced force technique up to #25 K-file. Group 2: Preparation with only ProTaper F2 instrument in a reciprocating movement. Group 3: Preparation with Reciproc R25 instrument in a reciprocating movement. Group 4: Preparation with ProTaper instruments up to F2 instrument. Group 5: Preparation with ProTaper Next instruments up to X2 instrument. No procedure was applied to control group. The roots were sectioned horizontally at 3, 6 and 9 mm from the apex and examined. Absence or presence of dentinal microcracks was noted. RESULTS: The Chi-square test was performed to compare the appearance of cracked roots between all groups. There were no significant differences among the groups (P > 0.05). CONCLUSIONS: In conclusion, except the hand file and control group, all experimental groups showed microcrack formations. |
format | Online Article Text |
id | pubmed-4319298 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2015 |
publisher | Medknow Publications & Media Pvt Ltd |
record_format | MEDLINE/PubMed |
spelling | pubmed-43192982015-02-24 The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation Ustun, Yakup Aslan, Tugrul Sagsen, Burak Kesim, Bertan Eur J Dent Original Article OBJECTIVE: The aim of the present study was to investigate the incidence of dentinal microcracks caused by different preparation techniques. MATERIALS AND METHODS: 120 extracted human mandibular incisor teeth were divided into five experimental groups and one control group (n = 20): Group 1: Hand preparation with balanced force technique up to #25 K-file. Group 2: Preparation with only ProTaper F2 instrument in a reciprocating movement. Group 3: Preparation with Reciproc R25 instrument in a reciprocating movement. Group 4: Preparation with ProTaper instruments up to F2 instrument. Group 5: Preparation with ProTaper Next instruments up to X2 instrument. No procedure was applied to control group. The roots were sectioned horizontally at 3, 6 and 9 mm from the apex and examined. Absence or presence of dentinal microcracks was noted. RESULTS: The Chi-square test was performed to compare the appearance of cracked roots between all groups. There were no significant differences among the groups (P > 0.05). CONCLUSIONS: In conclusion, except the hand file and control group, all experimental groups showed microcrack formations. Medknow Publications & Media Pvt Ltd 2015 /pmc/articles/PMC4319298/ /pubmed/25713483 http://dx.doi.org/10.4103/1305-7456.149638 Text en Copyright: © European Journal of 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 Ustun, Yakup Aslan, Tugrul Sagsen, Burak Kesim, Bertan The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title | The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title_full | The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title_fullStr | The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title_full_unstemmed | The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title_short | The effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
title_sort | effects of different nickel-titanium instruments on dentinal microcrack formations during root canal preparation |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4319298/ https://www.ncbi.nlm.nih.gov/pubmed/25713483 http://dx.doi.org/10.4103/1305-7456.149638 |
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