title: Susceptibilities of Actinobacillus actinomycetemcomitans biofilms to oral antiseptics.
abstract: The susceptibilities of Actinobacillus actinomycetemcomitans cultures, grown as 1- or 3-day-old biofilms or as planktonic suspensions, to concentrations of chlorhexidine digluconate, cetylpyridinium chloride or triclosan used in commercial mouthwashes were compared. Three-day biofilms were the most resistant form of the organism and chlorhexidine was the most active antiseptic. Comparison of solutions of the pure antibacterial agent with commercial products containing the same concentration of antiseptic showed little difference in in-vitro activities. The results emphasise that the testing of antimicrobial mouthwashes should be performed on bacteria grown as biofilms.
authors.affiliation: Department of Pharmaceutics, School of Pharmacy, University of London.
authors.forename: Y
authors.initials: Y
authors.lastname: Thrower
authors.forename: R J
authors.initials: RJ
authors.lastname: Pinney
authors.forename: M
authors.initials: M
authors.lastname: Wilson
mesh_terms: D016976:Aggregatibacter actinomycetemcomitans / Q000187:drug effects* / Q000254:growth & development; D000818:Animals; D000891:Anti-Infective Agents, Local / Q000494:pharmacology*; D001565:Benzoates / Q000494:pharmacology; D018441:Biofilms / Q000187:drug effects* / Q000254:growth & development; D002594:Cetylpyridinium / Q000494:pharmacology; D002710:Chlorhexidine / Q000031:analogs & derivatives / Q000494:pharmacology; D015169:Colony Count, Microbial; D006801:Humans; D008826:Microbial Sensitivity Tests; D009067:Mouthwashes / Q000494:pharmacology*; D012967:Sodium Dodecyl Sulfate / Q000494:pharmacology; D014260:Triclosan / Q000494:pharmacology
chemical_list: D000891:Anti-Infective Agents, Local; D001565:Benzoates; D009067:Mouthwashes; C070868:Plax; D012967:Sodium Dodecyl Sulfate; D014260:Triclosan; D002594:Cetylpyridinium; C010882:chlorhexidine gluconate; D002710:Chlorhexidine