Antibacterial power of sodium hypochlorite combined with surfactants and acetic acid
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Data
2014
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Resumo
The aim of this ex vivo study was to compare the antibacterial power of 1% NaOCl with
1% acetic acid, 5.25% NaOCl and two commercially available NaOCl modified with
surfactants in bovine root dentin. A total of 120 dentin tubes prepared from intact bovine
incisors were infected for 21 days with Enterococcus faecalis and randomly divided into
six groups as follows: 5.25%NaOCl; Hypoclean; Chlor-Xtra; 1% NaOCl with 1% acetic
acid; infected dentin tubes (positive control); and sterile dentin tubes (negative control).
At experimental times of 0, 7, 14, 21 and 28 days, dentin chips were collected using
sequential round burs with increasing diameters in separate test tubes containing 3 mL
of freshly prepared BHI. Statistical analysis were performed using parametric methods
(one-way ANOVA, and Bonferroni’s multiple comparisons test, α=0.01). After culturing,
the number of colony-forming units (CFU) was counted. All the NaOCl solutions showed
small number of CFU over 28 days. ChlorXtra and Hypoclean had the smallest number
of CFU at all times with greater antimicrobial efficacy than 5.25% NaOCl and 1% NaOCl
solution with 1% acetic acid.
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Palavras-chave
Sodium hypochlorite, Irrigant, Acetic acid, Enterococcus faecalis, Surfactant
Citação
GIARDINO, Luciano et al. Antibacterial power of sodium hypochlorite combined with surfactants and acetic acid. Brazilian Dental Journal, Ribeirão Preto, v. 25, n. 4, p. 289-294, 2014.