Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment

Background: This study aimed to compare the continuous rotation and reciprocating movements of rotary files in achieving apical patency in root canal retreatment.Materials and Methods: This in vitro, experimental study evaluated 64 extracted mandibular molars. The teeth were prepared up to F3 with P...

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Autores principales:	Hadi Nouri, Kamal Amini, Maryam Zare Jahromi
Formato:	article
Lenguaje:	EN
Publicado:	Wolters Kluwer Medknow Publications 2021
Materias:	retreatment root canal preparation rotation Dentistry RK1-715
Acceso en línea:	https://doaj.org/article/7603c47d57ec43efa750cf7c27d0984f
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spelling	oai:doaj.org-article:7603c47d57ec43efa750cf7c27d0984f2021-11-12T10:10:18ZComparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment1735-33272008-025510.4103/1735-3327.328753https://doaj.org/article/7603c47d57ec43efa750cf7c27d0984f2021-01-01T00:00:00Zhttp://www.drjjournal.net/article.asp?issn=1735-3327;year=2021;volume=18;issue=1;spage=85;epage=85;aulast=Nourihttps://doaj.org/toc/1735-3327https://doaj.org/toc/2008-0255Background: This study aimed to compare the continuous rotation and reciprocating movements of rotary files in achieving apical patency in root canal retreatment.Materials and Methods: This in vitro, experimental study evaluated 64 extracted mandibular molars. The teeth were prepared up to F3 with ProTaper Universal and obturated using lateral compaction technique. The teeth were divided into four groups (n = 16) based on the mesiobuccal canal curvature (Schneider's method) and type of rotational movement. Groups 1 and 2 included straight canal teeth retreated with WaveOne Gold and ProTaper Universal Retreatment system, respectively. Groups 3 and 4 included teeth with moderately curved root canals retreated with WaveOne Gold and ProTaper Universal, respectively. Apical patency was ensured by observing the tip of a hand K-file at the apical foramen. Data were analyzed using the Fisher's exact test. P < 0.05 was considered statistically significant.Results: Apical patency was successfully achieved in all 16 teeth in group 1 (100%) and 15 teeth in group 2 (93.75%). No significant difference was noted between continuous rotation and reciprocating movements in straight canals (P = 1.00). Apical patency was successfully achieved in 15 teeth in group 3 (93.75%) and 12 teeth in group 4 (75%). No significant difference was noted between continuous rotation and reciprocating movements in moderately curved canals either (P = 0.333).Conclusion: Both continuous rotation and reciprocating movements are equally effective in achieving apical patency in straight or moderately curved mesiobuccal canal of mandibular molars.Hadi NouriKamal AminiMaryam Zare JahromiWolters Kluwer Medknow Publicationsarticleretreatmentroot canal preparationrotationDentistryRK1-715ENDental Research Journal, Vol 18, Iss 1, Pp 85-85 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	retreatment root canal preparation rotation Dentistry RK1-715
spellingShingle	retreatment root canal preparation rotation Dentistry RK1-715 Hadi Nouri Kamal Amini Maryam Zare Jahromi Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
description	Background: This study aimed to compare the continuous rotation and reciprocating movements of rotary files in achieving apical patency in root canal retreatment.Materials and Methods: This in vitro, experimental study evaluated 64 extracted mandibular molars. The teeth were prepared up to F3 with ProTaper Universal and obturated using lateral compaction technique. The teeth were divided into four groups (n = 16) based on the mesiobuccal canal curvature (Schneider's method) and type of rotational movement. Groups 1 and 2 included straight canal teeth retreated with WaveOne Gold and ProTaper Universal Retreatment system, respectively. Groups 3 and 4 included teeth with moderately curved root canals retreated with WaveOne Gold and ProTaper Universal, respectively. Apical patency was ensured by observing the tip of a hand K-file at the apical foramen. Data were analyzed using the Fisher's exact test. P < 0.05 was considered statistically significant.Results: Apical patency was successfully achieved in all 16 teeth in group 1 (100%) and 15 teeth in group 2 (93.75%). No significant difference was noted between continuous rotation and reciprocating movements in straight canals (P = 1.00). Apical patency was successfully achieved in 15 teeth in group 3 (93.75%) and 12 teeth in group 4 (75%). No significant difference was noted between continuous rotation and reciprocating movements in moderately curved canals either (P = 0.333).Conclusion: Both continuous rotation and reciprocating movements are equally effective in achieving apical patency in straight or moderately curved mesiobuccal canal of mandibular molars.
format	article
author	Hadi Nouri Kamal Amini Maryam Zare Jahromi
author_facet	Hadi Nouri Kamal Amini Maryam Zare Jahromi
author_sort	Hadi Nouri
title	Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
title_short	Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
title_full	Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
title_fullStr	Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
title_full_unstemmed	Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
title_sort	comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment
publisher	Wolters Kluwer Medknow Publications
publishDate	2021
url	https://doaj.org/article/7603c47d57ec43efa750cf7c27d0984f
work_keys_str_mv	AT hadinouri comparisonoffullrotationandreciprocatingmovementsinregainingapicalpatencyduringendodonticretreatment AT kamalamini comparisonoffullrotationandreciprocatingmovementsinregainingapicalpatencyduringendodonticretreatment AT maryamzarejahromi comparisonoffullrotationandreciprocatingmovementsinregainingapicalpatencyduringendodonticretreatment
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Comparison of full rotation and reciprocating movements in regaining apical patency during endodontic retreatment

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