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Bactericidal effects of povidone-iodine solution to oral pathogenic bacteria in vitro.
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1993
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Antimicrobial SusceptibilityPovidone-iodine SolutionAntibioticsOral MucosaMicrobial ContaminationPvp-i SolutionSeven SpeciesOral MicrobiologyAntibacterial AgentMicrobiologyInfection ControlDisinfectantAntimicrobial CompoundMedicineOral Pathogenic BacteriaClinical MicrobiologyAntimicrobial ResistanceBactericidal Effects
Seven species of periodontal pathogenic bacteria (Bacteroides, gingivalis, Bacteroides intermedius, Bacteroides melaninogenicus, Fusobacterium nucleatum, Actinobacillus actinomycetemcomitans, Capnocytophaga spp., Eikenella corrodens) and two control species (Streptococcus intermedius, Pseudomonas aeruginosa) were selected in order to study the bactericidal effects of 10% povidone-iodine (PVP-I) aqueous solution in vitro. The PVP-I solution was diluted to 10, 20, 50, 100, 200, 400, 800, 1600, 3200, 6400 and 12800 x and contact times were 15, 30 and 60 seconds. The strongest bactericidal effects on the seven periodontal pathogenic bacteria and two control bacteria were seen at a dilution of 400 x and a contact time of 15 seconds. Based on these findings, we advocate a 0.25% solution of 10% aqueous PVP-I for oral mucosa and periodontal pocket irrigation.