Document Detail

Apical negative pressure irrigation versus conventional irrigation plus triantibiotic intracanal dressing on root canal disinfection in dog teeth.
MedLine Citation:
PMID:  20123368     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The aim of this study was to compare in vivo the efficacy of 2 root canal disinfection techniques (apical negative pressure irrigation versus apical positive pressure irrigation plus triantibiotic intracanal dressing) in immature dog teeth with apical periodontitis. STUDY DESIGN: Two groups of root canals with pulp necrosis and apical periodontitis were evaluated according to the disinfection technique: group 1: apical negative pressure irrigation (EndoVac system); and group 2: apical positive pressure irrigation (conventional irrigation) plus triantibiotic intracanal dressing. The first sample (S1) was collected after lesions were radiographically visible, and the second sample (S2) was collected after apical negative pressure irrigation (group 1) or conventional irrigation/triantibiotic dressing (group 2). All samples were seeded in a culture medium for anaerobic bacteria. Colony-forming unit counts were analyzed statistically by the Mann-Whitney test (alpha = .05). RESULTS: Microorganisms were present in 100% of canals of both groups in S1. In S2, microorganisms were absent in 88.6% of group 1's canals and 78.28% of group 2's canals. There was no significant difference between the groups in either S1 (P = .0963) or S2 (P = .0566). There was significant (P < .05) bacterial reduction from S1 to S2 in both groups. CONCLUSION: In immature teeth with apical periodontitis, use of the EndoVac system can be considered to be a promising disinfection protocol, because it provided similar bacterial reduction to that of apical positive pressure irrigation (conventional irrigation) plus intracanal dressing with the triantibiotic paste, and the use of intracanal antibiotics might not be necessary.
Nestor Cohenca; Carlos Heilborn; James D Johnson; Daniel Silva Herzog Flores; Izabel Yoko Ito; Lea Assed Bezerra da Silva
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics     Volume:  109     ISSN:  1528-395X     ISO Abbreviation:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Publication Date:  2010 Jan 
Date Detail:
Created Date:  2010-02-03     Completed Date:  2010-04-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9508562     Medline TA:  Oral Surg Oral Med Oral Pathol Oral Radiol Endod     Country:  United States    
Other Details:
Languages:  eng     Pagination:  e42-6     Citation Subset:  D; IM    
Copyright Information:
Copyright 2010 Mosby, Inc. All rights reserved.
Department of Endodontics, Dental School, University of Washington, Seattle, Washington, USA.
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MeSH Terms
Anti-Bacterial Agents / administration & dosage*
Bacteria, Anaerobic
Dental Pulp Cavity / microbiology*
Dental Pulp Necrosis / microbiology*,  therapy
Drug Combinations
Irrigation / methods
Periapical Periodontitis / microbiology*,  therapy
Random Allocation
Root Canal Irrigants / administration & dosage*
Root Canal Preparation / methods*
Reg. No./Substance:
0/Anti-Bacterial Agents; 0/Drug Combinations; 0/Root Canal Irrigants

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

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