Document Detail

Comparison of apical transportation between two rotary file systems and two hybrid rotary instrumentation sequences.
MedLine Citation:
PMID:  20630304     Owner:  NLM     Status:  In-Process    
INTRODUCTION: The aim of this study was to evaluate apical transportation of 2 rotary file systems and 2 hybrid rotary instrumentation sequences. METHODS: One hundred twenty-four mesiobuccal canals of extracted molars were instrumented by 4 nickel-titanium rotary sequences. Group PF (n = 32) was instrumented with ProFile Series 29 to size #6 (#36/.06) at working length (WL). Group ES (n = 28) used EndoSequence to #35/.06. Group PFLS (n = 32) used ProFile Series 29 followed by LightSpeed in a hybrid technique to a final size #50. Group PTLS (n = 32) was instrumented with ProTaper and additional enlargement with LightSpeed to #50 in a hybrid technique. A double-digital radiographic technique was used to measure canal transportation at 0.5-5.0 mm from WL. Statistical analysis was carried out with one-way analysis of variance. RESULTS: There was no statistically significant difference for apical transportation between the groups at any level from the WL (0.5 mm, P = .74; 1.0 mm, P = .09; 2.0 mm, P = .29; 3.0 mm, P = .65; 4.0 mm, P = .21; 5.0 mm, P = .12). CONCLUSIONS: indicated that combining different file systems does not lead to increased levels of apical transportation. Hybrid instrumentation might be a valid alternative to achieve larger apical diameters without higher risk of procedural errors.
Frank C Setzer; Tae-Kyung Kwon; Bekir Karabucak
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Publication Detail:
Type:  Journal Article     Date:  2010-04-09
Journal Detail:
Title:  Journal of endodontics     Volume:  36     ISSN:  1878-3554     ISO Abbreviation:  J Endod     Publication Date:  2010 Jul 
Date Detail:
Created Date:  2010-07-15     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7511484     Medline TA:  J Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1226-9     Citation Subset:  D    
Copyright Information:
Copyright 2010 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.
Department of Endodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA.
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