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Antimicrobial activity of calcium hydroxide and chlorhexidine on intratubular Candida albicans

International Journal of Oral Science 2013年第1期5卷 32-36页

作者： Ronan Jacques Rezende Delgado Thaís Helena Gasparoto carla renata sipert Claudia Ramos Pinheiro Ivaldo Gomes de Moraes Roberto Brandao Garcia Marco Antnio Hungaro Duarte Clóvis Monteiro Bramante Srgio Aparecido Torres Gustavo Pompermaier Garlet Ana Paula Campanelli Norberti Bernardineli Department of Biological Sciences Bauru School of DentistryUniversity of Sao Paulo Department of Operative Dentistry Endodontics and Dental MaterialsBauru School of DentistryUniversity of Sao Paulo

This study investigated the efficacy of calcium hydroxide and chlorhexidine gel for the elimination of intratubular Candida albicans (***).Human single-rooted teeth contaminated with *** were treated with calcium hydroxide,2%chlorhexidine gel, calcium hydroxide plus 2%chlorhexidine gel,or saline(0.9%sodium chloride) as a positive *** samples obtained at depths of 0-100 and 100-200μm from the root canal system were analyzed for *** load by counting the number of colony forming units and for the percentage of viable *** using fluorescence ***,the antimicrobial activity of calcium hydroxide and the 2%chlorhexidine gel was evaluated by counting the number of colony forming *** 14 days of intracanal medication,there was a significant decrease in the number of *** colony forming units at a depth of 0-100μm with chlorhexidine treatment either with or without calcium hydroxide compared with the calcium hydroxide only ***,there were no differences in the number of colony forming units at the 100-200μm depth for any of the medications *** viability was also evaluated by vital staining techniques and fluorescence microscopy *** activity against *** significantly increased at both depths in the chlorhexidine groups with and without calcium hydroxide compared with the groups treated with calcium hydroxide *** with only chlorhexidine or chlorhexidine in combination with calcium hydroxide were effective for elimination of ***.

关键词： calcium hydroxide Candida albicans chlorhexidine endodontics

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