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Int J Antimicrob Agents. 2002 Dec;20(6):451-6.

Antibacterial activity of moxifloxacin against periodontal anaerobic pathogens involved in systemic infections.

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Department of Microbiological and Gynaecological Sciences - Section of Microbiology, University of Catania, Via Androne, 81, 95124 Catania, Italy.


The in vitro activity of moxifloxacin was compared with that of penicillin G, amoxycillin/clavulanate, cefoxitin, erythromycin, clindamycin and metronidazole against 158 isolates associated with periodontal infections. MIC(50)/MIC(90) values of moxifloxacin were respectively 0.06/0.5 mg/l for Porphyromonas gingivalis (35), for Prevotella spp. (28) and Actinomyces spp. (35), 0.12/0.25 mg/l for Fusobacterium nucleatum (20) and 0.06/0.12 mg/l for Peptostreptococcus spp. (30). The minimum inhibitory concentration (MIC) range of moxifloxacin for Bacteroides forsythus (6) and Campylobacter rectus (4) was 0.06-0.12 mg/l. The minimum bactericidal concentrations were equal to or 2-4 times the MIC values. Moxifloxacin produced a bactericidal effect at 8 h. Our results show that moxifloxacin has good antibacterial activity against periodontal pathogens comparable with that of cefoxitin and amoxycillin/clavulanate, and better than that of clindamycin, metronidazole and penicillin.

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