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Revista Ciencias de la Salud
Print version ISSN 1692-7273On-line version ISSN 2145-4507
Abstract
CAYO-ROJAS, César Félix et al. Antibacterial Evaluation of Hydrogen Peroxide Compared to Sodium Hypochlorite on Dental Brushes Inoculated with Streptococcus Mutans. Rev. Cienc. Salud [online]. 2021, vol.19, n.1, pp.88-98. Epub Aug 04, 2021. ISSN 1692-7273. https://doi.org/10.12804/revistas.urosario.edu.co/revsalud/a.10226.
Objective:
To assess the antibacterial effect of 6% hydrogen peroxide (H2O2) compared with 1% and 2% sodium hypochlorite, on toothbrushes inoculated with Streptococcus mutans ATCC® 25175™.
Materials and methods:
The study design was an experimental in vitro, cross-sectional prospective and comparative study. Sixty toothbrushes were used, which were divided into four groups of 15 brushes. After conducting a pilot study, the sample number was determined by the means comparison formula and these were selected by simple random sampling. These brushes were inoculated with strains of S. mutans ATCC® 25175™. The disinfectants included H2O2 at 6% and sodium hypochlorite (NaOCl) at 1% and 2%. The Shapiro-Wilk test was used to assess normality and the Mann-Whitney U test was applied for the hypothesis test.
Results:
The 6% H2O2 showed an average growth of 2 * 109 CFU/mL, which indicates that its effectiveness is greater compared to the 1% NaClO that showed a growth average of 4 * 109 CFU/mL which is less than the 2% NaClO that presented 0 CFU/mL of S. mutans (p = 0.004).
Conclusion:
Between 6% H2O2 and 1% and 2% NaClO, specifically antibacterial detection, 2% NaClO was concluded as being the most effective.
Keywords : Disinfection; hydrogen peroxide; sodium hypochlorite; Streptococcus mutans.