Microorganisms growth in endodontic citric-acid solutions with and without microbiological stabilizer

Made available in DSpace on 2019-09-12T16:53:49Z (GMT). No. of bitstreams: 0 Previous issue date: 2004The purpose of this study was to determine if citric-acid solutions for endodontic use can become contaminated and if the addition of a microbiological stabilizer to the acid would modify this situation. Five types of microorganisms were inoculated in tubes containing 10% citric-acid solutions, pH 1.8 (group A1), and 10% solution, pH 1.8, combined with 0.1 % sodium benzoate (group A2). The results demonstrated that solutions of group A1 were contaminated with Candida albicans in 100% of the tubes, Escherichia coli in 80%, and Enterococcus faecalis in 50%. When stabilizer was added (group A2), C. albicans grew in only 30% of tubes and all bacterial species were neutralized.Ctr Estudos Odontol, Penedo, RJ, Brazil; Ctr Univ Volta Redonda UNIFOA, Sch Dent, Discipline Integrated Clin, Volta Redonda, Brazil; Universidade de Taubaté (Unitau), Dept Dent, Sao Paulo, Brazi