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"In vitro" comparative experimental study of antimicrobial action of mouth washing products
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Regular use of mouth rinses modifies the oral habitat, since bacterial populations are submitted to a high selective pressure during the treatment exercised by the active presence of the disinfectant. Mostly mouth rinses are based on the antibacterial effect of Chlorhexidine, Triclosan, essential oils and other antibacterials although other pharmaceutical characteristics can also affect their effectiveness. In this paper we compare"in vitro" the antibacterial effect of different oral rinsing solutions. Minimal Inhibitory Concentrations (MIC) and Minimal Bactericidal Concentrations (MBC) were determined as well as the kinetics of bacterial death in the presence of letal concentrations of the mouth rinses. MIC values expressed as Maximal Inhibitory Dilution (MID) of the mouth rinse ranged from 1 to 1/2048 depending on the microorganism and product, whereas Minimal Biocidal Concentration (MBC), expressed as Maximal Biocidal Dilution (MBD) ranged from 1 to 1/1024, being in general one dilution less than MIC. Maximal Biocidal Dilution is a good tool to measure the actual efficiency of mouth washing solutions. However, kinetics of death seems to be better in our work killing curves demonstrate that bacterial populations are mostly eliminated during the first minute after the contact of bacterial suspension and the mouth-washing solution. In all tested bacterial species mouth-washing solutions tested were able to reduce until suspension treated except 1 and 5
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RUIZ MARTÍNEZ, Lidia, ESCRIBANO PATÓN, César, VEIGA CRESPO, Patricia, VILLA, Tomás g., VINUESA AUMEDES, Teresa. "In vitro" comparative experimental study of antimicrobial action of mouth washing products. _Bulletin du GIRSO_. 2007. Vol. 48, núm. 1, pàgs. 32-38. [consulta: 21 de gener de 2026]. ISSN: 0250-4693. [Disponible a: https://hdl.handle.net/2445/55627]