Document Detail


Antibacterial efficacy of MTAD final rinse and two percent chlorhexidine gel medication in teeth with apical periodontitis: a randomized double-blinded clinical trial.
MedLine Citation:
PMID:  19840635     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
INTRODUCTION: Clinical assessment of the efficacy of novel root canal disinfection protocols is an important focus in endodontic research. This randomized double-blinded study assessed the antibacterial efficacy of a final rinse with BioPure MTAD (MTAD) and intracanal medication with 2% chlorhexidine gel (CHX) in teeth with apical periodontitis. METHODS: Canals in 30 teeth (single-rooted and multi-rooted) were prepared by using 1.3% NaOCl, rinsed with MTAD or saline in random sequence, medicated with CHX for 7 days, irrigated with 1.3% NaOCl, and filled. Bacteriologic root canal samples were obtained by aspiration before (1A) and after (1B) canal preparation, after the final rinse (1C), after CHX was flushed (2A), and after final irrigation (2B). Bacteria were enumerated by epifluorescence-microscopy (EFM) by using 2 staining methods and by colony-forming-unit (CFU) counts after 14 days of incubation. RESULTS: Bacterial counts (EFM) in 1B were greater than 95% decreased from 1A. Low bacterial densities in 1B, 1C, 2A, and 2B did not differ significantly from each other. EFM counts were consistently higher than CFU counts. CONCLUSIONS: The final rinse with MTAD and medication with CHX did not reduce bacterial counts beyond levels achieved by canal preparation with NaOCl.
Authors:
Gevik Malkhassian; Aldo J Manzur; Milos Legner; Edward D Fillery; Sheela Manek; Bettina R Basrani; Shimon Friedman
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't     Date:  2009-09-18
Journal Detail:
Title:  Journal of endodontics     Volume:  35     ISSN:  1878-3554     ISO Abbreviation:  J Endod     Publication Date:  2009 Nov 
Date Detail:
Created Date:  2009-10-20     Completed Date:  2010-01-26     Revised Date:  2010-03-26    
Medline Journal Info:
Nlm Unique ID:  7511484     Medline TA:  J Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1483-90     Citation Subset:  D    
Affiliation:
Department of Endodontics, Faculty of Dentistry, University of Toronto, Ontario, Canada. gevik.malkhassian@dentistry.utoronto.ca
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MeSH Terms
Descriptor/Qualifier:
Adult
Aged
Anti-Bacterial Agents / therapeutic use*
Anti-Infective Agents, Local / therapeutic use*
Bacteria, Aerobic / isolation & purification
Bacteria, Anaerobic / isolation & purification
Chlorhexidine / therapeutic use*
Citric Acid / therapeutic use*
Cohort Studies
Colony Count, Microbial
Dental Pulp Cavity / microbiology
Dental Restoration, Permanent / methods
Double-Blind Method
Doxycycline / therapeutic use*
Female
Glass Ionomer Cements
Gutta-Percha / therapeutic use
Humans
Male
Microscopy, Fluorescence
Middle Aged
Periapical Periodontitis / microbiology,  therapy*
Polysorbates / therapeutic use*
Resins, Synthetic
Root Canal Filling Materials / therapeutic use
Root Canal Irrigants / therapeutic use*
Root Canal Obturation
Root Canal Preparation / instrumentation,  methods*
Sodium Hypochlorite / therapeutic use
Chemical
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Anti-Infective Agents, Local; 0/Glass Ionomer Cements; 0/MTAD (intracanal irrigant); 0/Photac-Fil; 0/Polysorbates; 0/Resins, Synthetic; 0/Root Canal Filling Materials; 0/Root Canal Irrigants; 55-56-1/Chlorhexidine; 564-25-0/Doxycycline; 7681-52-9/Sodium Hypochlorite; 77-92-9/Citric Acid; 9000-32-2/Gutta-Percha
Comments/Corrections
Comment In:
J Endod. 2010 Apr;36(4):596; author reply 596-7   [PMID:  20307729 ]

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


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