Odontogenic Infections: Etiology and Management


Background: Odontogenic infection is a common problem facing the dentist and maxillofacialsurgeon in their daily practice.Objectives: To determine the involved fascial spaces, the pathogenic bacteria and their antibioticsensitivity in order to guide clinicians in proper management of odontogenic infections.Materials and methods: Pus samples were obtained from patients with odontogenic infectionsby needle aspiration or sterile swab at the time of abscess drainage. The samples were culturedaerobically and anaerobically conditions, followed by identification of bacteria using differentbiochemical tests and sensitivity test by disk diffusion method.Results: This study included (20) patients, (11) patients were male and (9) female. Thesubmandibular space was the most commonly involved. A mixed facultative anaerobic and strictanaerobic growth was observed in the cultures. Viridans streptococci was the predominant bacteria(42.42%), while the least isolated bacteria was Fusobacterium spp (9.1%). The isolated bacteriawere highly susceptible to azithromycin (87.87%) and least susceptible to amoxicillin (39.39%).Conclusion: Incision and drainage of involved fascial space with the removal of causative toothand the use of appropriate antibiotic remain the ideal treatment option for odontogenic infection.