Document Detail

Bacterial leakage in root canals filled with calcium hydroxide paste associated with different vehicles.
MedLine Citation:
PMID:  18949297     Owner:  NLM     Status:  MEDLINE    
This in vitro study evaluated, using a bacterial leakage model, whether intracanal medication with calcium hydroxide [Ca(OH)2]-based pastes prepared with different vehicles, has inhibitory effect on corono-apical leakage of bacteria. Forty instrumented human canines were dressed with Ca(OH)2 p.a. associated with: G1 = distilled water; G2 = polyethylene glycol (PG); G3 = PG + CMCP; and G4 = glycerin. Five teeth with intact crowns served as negative controls and 5 instrumented teeth without temporary dressing served as positive controls. All teeth were mounted in a 2-chamber apparatus and then exposed to human saliva for 63 days. Leakage was recorded when turbidity was observed in the lower chamber. Fifty percent of the samples of G1 and G2, 10% of G3 and 80% of G4 were fully contaminated after 9 weeks. Statistically significant differences were observed with paired comparisons G3 and G4 (p=0.0069), with G3 achieving better seal against bacterial leakage than G4.
Cristiana Murad; Luiz Fernando Fariniuk; Sandra Fidel; Rivail Antonio Sergio Fidel; Luciana Moura Sassone
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Brazilian dental journal     Volume:  19     ISSN:  1806-4760     ISO Abbreviation:  Braz Dent J     Publication Date:  2008  
Date Detail:
Created Date:  2008-10-24     Completed Date:  2009-03-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9214652     Medline TA:  Braz Dent J     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  232-7     Citation Subset:  D    
ProClin Department, State University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
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MeSH Terms
Anti-Infective Agents, Local / administration & dosage
Calcium Hydroxide / administration & dosage,  therapeutic use*
Camphor / administration & dosage
Chlorophenols / administration & dosage
Dental Leakage / microbiology*
Dental Pulp Cavity / microbiology*
Drug Carriers
Drug Combinations
Edetic Acid / therapeutic use
Glycerol / administration & dosage
Materials Testing
Polyethylene Glycols / administration & dosage
Root Canal Irrigants / administration & dosage,  therapeutic use*
Root Canal Preparation
Saliva / microbiology
Smear Layer
Sodium Hypochlorite / therapeutic use
Solvents / administration & dosage
Time Factors
Tooth Apex / microbiology
Reg. No./Substance:
0/Anti-Infective Agents, Local; 0/Chlorophenols; 0/Drug Carriers; 0/Drug Combinations; 0/Polyethylene Glycols; 0/Root Canal Irrigants; 0/Solvents; 0/Vehicles; 1305-62-0/Calcium Hydroxide; 56-81-5/Glycerol; 60-00-4/Edetic Acid; 76-22-2/Camphor; 7681-52-9/Sodium Hypochlorite; 7732-18-5/Water; 8003-18-7/camphorated parachlorophenol

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

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