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13.02.2019 | Original Article | Ausgabe 3/2019

Odontology 3/2019

Aerobic and anaerobic microorganisms and antibiotic sensitivity of odontogenic maxillofacial infections

Zeitschrift:
Odontology > Ausgabe 3/2019
Autoren:
Emmanuel López-González, Marlen Vitales-Noyola, Ana María González-Amaro, Verónica Méndez-González, Antonio Hidalgo-Hurtado, Rosaura Rodríguez-Flores, Amaury Pozos-Guillén
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Abstract

This study aimed to identify the aerobic and anaerobic causal microorganisms of odontogenic infections and their antibiotic sensitivity. Purulent exudates were taken from patients with odontogenic infections by transdermal puncture, and aerobic and anaerobic microorganisms were identified using biochemical tests. Susceptibility to antibiotics was tested using the Kirby-Bauer method; the inhibition halos were measured according to NCCLS, and based on the results, the microorganisms were classified as susceptible, intermediate or resistant to each antibiotic. Frequencies of species and percentages of resistance were calculated. The microorganisms associated with odontogenic infections were principally anaerobic (65.3% anaerobic vs. 35.7% aerobic), and the susceptibility to antibiotics was higher in anaerobic than in aerobic microorganisms. The majority of isolated microorganisms (82%) showed susceptibility to amoxicillin/clavulanic acid. The causal agents of odontogenic infections were anaerobic microorganisms, which exhibited high resistance to antibiotics.

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