Antimicrobial potential of medicaments used in healing process in dog´s teeth with apical periodontitis
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Data
2004
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Resumo
The objective of this study was to evaluate the influence of irrigants on the antimicrobial potential of calcium hydroxide paste in dogs'
teeth with apical periodontitis. Forty-eight premolar teeth of adult mongrel dogs had their root canals opened to the oral environment
for 6 months. The root canals were prepared and treated with different irrigating solutions and intracanal medicaments, according to
the following groups: 1) 2.5% sodium hypochlorite (NaOCl) + calcium hydroxide paste (CHP); 2) 2% chlorhexidine (CHX) + CHP;
3) vinegar + CHP; 4) vinegar + vinegar. In group 4, both the irrigating solution and intracanal medicament were vinegar, which was
renewed every 7 days. Each sample was collected by using two paper points maintained in position for 1 min, and individually
transported and immersed in 7 mL of Letheen broth (LB), followed by incubation at 37 o C for 48 h. Microbial growth was analyzed by
two methods: turbidity of the culture medium and subculture on a specific nutrient broth (brain heart infusion). After 21 days, all
experimental groups had microbial growth, however, in different percentages: group 1 - 30%; group 2 - 30%; group 3 - 40%; group 4
- 60%. All materials tested had antimicrobial potential; however, the influence of calcium hydroxide paste on the control of
microorganisms must be remembered.
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Palavras-chave
Calcium hydroxide, Antimicrobial activity, Sodium hypochlorite, Chlorhexidine, Vinegar
Citação
ESTRELA, Carlos et al. Antimicrobial potential of medicaments used in healing process in dog´s teeth with apical periodontitis. Brazilian Dental Journal, Ribeirão Preto, v. 15, n.3, p. 12-16, 2004.