Document Detail


The effectiveness of different endodontic irrigation procedures on the removal of the smear layer: a scanning electron microscopic study.
MedLine Citation:
PMID:  2513277     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
To compare the effectiveness of different irrigation procedures on the removal of the smear layer, 40 curved canals were manually prepared in vitro under copious irrigation with 3 per cent NaOCl. Ten canals served as controls. The remaining 30 were equally distributed in three experimental groups and subsequently irrigated with the following: ultrasound with NaOCl; EDTA; ultrasound with EDTA. In the scanning electron microscope, the appearance of the smear layer was rated over the distribution of dentinal tubule openings for the coronal, middle and apical segments of the canals. Irrigation with NaOCl produced consistently smeared surfaces. Ultrasonic stirring of NaOCl removed the smear layer moderately, while EDTA produced almost smear-free surfaces. Ultrasound in association with EDTA did not enhance the dissolving capability of this chelating agent. A definite decline in the efficiency of the irrigation procedures was also observed along the apical part of the canals.
Authors:
B Ciucchi; M Khettabi; J Holz
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  International endodontic journal     Volume:  22     ISSN:  0143-2885     ISO Abbreviation:  Int Endod J     Publication Date:  1989 Jan 
Date Detail:
Created Date:  1990-02-02     Completed Date:  1990-02-02     Revised Date:  2008-08-07    
Medline Journal Info:
Nlm Unique ID:  8004996     Medline TA:  Int Endod J     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  21-8     Citation Subset:  D    
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MeSH Terms
Descriptor/Qualifier:
Dentin / ultrastructure*
Edetic Acid*
Evaluation Studies as Topic
Humans
Root Canal Irrigants*
Root Canal Therapy / methods*
Sodium Hypochlorite*
Ultrasonics
Chemical
Reg. No./Substance:
0/Root Canal Irrigants; 60-00-4/Edetic Acid; 7681-52-9/Sodium Hypochlorite

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


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