Document Detail

A comparison of canal preparation with nickel-titanium and stainless steel instruments.
MedLine Citation:
PMID:  7673815     Owner:  NLM     Status:  MEDLINE    
Maintaining the original canal path during instrumentation is a challenge in narrow curved canals. This study compared the maintenance of the original canal path of curved root canals during instrumentation with nickel-titanium (Mac) hand files, nickel-titanium engine-driven files, and stainless steel (K-Flex) files. Canal path maintenance was determined by superimposing instrumentation radiographs over an initial file radiograph and examining for discrepancies. Nickel-titanium hand and engine-driven instruments maintained the original canal path in all cases. The incidence of deviation from the original canal path during instrumentation with stainless steel files increased with file size. The difference between nickel-titanium groups and stainless steel became statistically significant with instruments larger than size 30. In this study, nickel-titanium files were more effective in maintaining the original canal path of curved root canals when the apical preparation was enlarged beyond size 30.
P T Esposito; C J Cunningham
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of endodontics     Volume:  21     ISSN:  0099-2399     ISO Abbreviation:  J Endod     Publication Date:  1995 Apr 
Date Detail:
Created Date:  1995-10-17     Completed Date:  1995-10-17     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7511484     Medline TA:  J Endod     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  173-6     Citation Subset:  D    
Department of Endodontics, University of Florida, College of Dentistry, Gainesville 32610-0436, USA.
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MeSH Terms
Dental High-Speed Technique
Dental Pulp Cavity / anatomy & histology
Root Canal Therapy / instrumentation*
Stainless Steel*
Tooth Root / anatomy & histology
Reg. No./Substance:
0/Alloys; 12597-68-1/Stainless Steel; 52013-44-2/nitinol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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