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  • Title: Comparison of the antibacterial activity of an ozonated oil with chlorhexidine digluconate and povidone-iodine. A disk diffusion test.
    Author: Montevecchi M, Dorigo A, Cricca M, Checchi L.
    Journal: New Microbiol; 2013 Jul; 36(3):289-302. PubMed ID: 23912871.
    Abstract:
    Ozonated oils are antiseptics obtained from the chemical reaction between ozone and unsaturated fatty acids of vegetable oils. The aim of this study was to investigate the antimicrobial effectiveness of a commercially available ozonated oil (O3-Oil), in comparison with 0.2% chlorhexidine digluconate (CHX) and 10% povidone-iodine (PVP-I) through a disk diffusion test. For each antiseptic a series of two-fold dilutions was made, obtaining seven dilutions: 1:2, 1:4, 1:8, 1:16, 1:32, 1:64 and 1:128. The undiluted antiseptics and the seven dilutions were tested against two freeze-dried bacterial strains: Staphylococcus aureus (Sa) and Porphyromonas gingivalis (Pg). O3-Oil showed significantly greater diameters of growth inhibition (p<0.01) than CHX and PVP-I in all dilutions for both tested strains. CHX lost any antibacterial efficacy when diluted more than 1:32. At the highest dilution, the diameters of growth inhibition against Sa were 20.67±0.58 mm and 15.33±0.58 mm, for O3-Oil and PVP-I, respectively. At the same dilution, the diameters of growth inhibition against Pg were: 19.00 mm for O3-Oil and 13.67±0.58 mm for PVP-I. The promising results obtained for the O3-Oil, against the opportunistic Sa, and Pg, one of the main periodontal pathogens, suggest its potential applicability for periodontal treatment. Further preclinical and clinical investigations are warranted.
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