| A SEM evaluation of debris removal from endodontic files after cleaning and steam sterilization procedures. | |
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MedLine Citation:
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PMID: 15497356 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: In recent times, it has been proposed to classify endodontic files as single-use items due to a perceived inability to adequately clean the instruments. The purpose of the present study was to quantify the surface debris on files removed from the manufacturer's packaging, and after cleaning using an ultrasonic bath or a thermal disinfector. METHODS: Stainless steel and rotary nickel-titanium files were examined after removal from the manufacturer's packaging, after instrumentation in broth-contaminated human teeth, and after various cleaning procedures. The cleaning procedures consisted of either a thermal disinfector cycle, ultrasonication with the files placed in a perforated container or ultrasonication with the files loosely placed in a beaker. The presence of manufacturing debris and biological debris was evaluated using scanning electron microscopy and quantified using image analysis software. RESULTS: The effectiveness of cleaning was not affected by variation in the size or taper of the files when an effective cleaning procedure was used. Cleaning the files in a thermal disinfector or by ultrasonication within a container did not consistently achieve complete removal of biological debris. Placing the files loosely in the ultrasonic bath achieved the most effective cleaning, an average of 98.33 per cent of the file surface area was freed of any biological debris. CONCLUSIONS: A conventional cleaning method is capable of effectively removing biological debris from endodontic files. The efficacy of ultrasonic cleaning was impaired when the files were placed within a perforated container. |
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Authors:
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D A Van Eldik; P S Zilm; A H Rogers; P D Marin |
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Publication Detail:
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Type: Evaluation Studies; Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Australian dental journal Volume: 49 ISSN: 0045-0421 ISO Abbreviation: Aust Dent J Publication Date: 2004 Sep |
Date Detail:
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Created Date: 2004-10-22 Completed Date: 2004-11-16 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0370612 Medline TA: Aust Dent J Country: Australia |
Other Details:
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Languages: eng Pagination: 128-35 Citation Subset: D; IM |
Affiliation:
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Dental School, The University of Adelaide. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Dental Alloys Dental Pulp Cavity / pathology Disinfection / instrumentation, methods Equipment Contamination / prevention & control* Equipment Design Hot Temperature Humans Image Processing, Computer-Assisted Infection Control, Dental Microscopy, Electron, Scanning Nickel Root Canal Preparation / instrumentation* Stainless Steel Steam* Sterilization / methods* Surface Properties Titanium Ultrasonics |
| Chemical | |
Reg. No./Substance:
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0/Dental Alloys; 0/Steam; 12035-60-8/titanium nickelide; 12597-68-1/Stainless Steel; 7440-02-0/Nickel; 7440-32-6/Titanium |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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