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Rev. clín. pesq. odontol. (Impr.) ; 4(3): 153-159, set.-dez. 2008. tab, ilus
Article in English | LILACS, BBO | ID: lil-617353

ABSTRACT

OBJECTIVES: The purpose of this in vitro study was to evaluate the effectiveness of different antisepticsfor decontamination of gutta-percha cones. MATERIALS AND METHODS: Thirty-six cones werecontaminated with standardized pure cultures of six different microorganisms: Staphylococcus aureus,Enterococcus faecalis, Escherichia coli, Klebsiella pneumoniae and Candida albicans. The cones were treated forfive minutes with different antiseptic solutions: 2% iodine alcohol, 3% sodium hypochlorite, 0.2%chlorohexidine and 5% citric acid. RESULTS: Iodine alcohol was the most effective for all themicroorganisms, except for Candida albicans. For this microorganism, the best results were obtainedwith 3% sodium hypochlorite and 5% citric acid; these two solutions showed moderate activity onother microorganisms. Chlorohexidine was not effective on any of the microorganisms.


OBJETIVOS: Neste trabalho avaliou-se a atividade antimicrobiana in vitro de diferentessoluções antissépticas na desinfecção de cones de guta-percha. MATERIAIS E MÉTODOS:Trinta e seis cones de guta-percha foram contaminados com culturas puras de diferentesmicrorganismos: Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Klebsiellapneumoniae e Candida albicans. Os cones foram imersos em diferentes soluções antissépticas:álcool iodado a 2%, hipoclorito de sódio a 3%, clorhexidina a 0,2% e ácido cítrico a 5%,durante 5 minutos. RESULTADOS: Os resultados indicam que o álcool iodado é o maiseficaz sobre todos os microrganismos, exceto sobre a C. albicans. Sobre esta, o mais eficazfoi o hipoclorito de sódio a 3 %, mostrando moderada eficácia sobre os restantesmicrorganismos, tal como o ácido cítrico. A clorhexidina não mostrou eficácia sobre qualquerdos microrganismos, nestas condições experimentais.


Subject(s)
Anti-Infective Agents, Local/pharmacology , Bacteria/drug effects , Candida albicans/drug effects , Gutta-Percha/chemistry , Bacterial Load , Bacteria/growth & development , Colony Count, Microbial , Candida albicans/growth & development , Citric Acid/pharmacology , Iodine/pharmacology , Sodium Hypochlorite/pharmacology
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