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Dentoalveolar Abscess Antibiotics — NDEB AFK MCQ

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EasyPharmacologyDentoalveolar Abscess AntibioticsNDEB AFK

Which antibiotic is the first-line choice for treatment of a dentoalveolar abscess in a non-penicillin-allergic patient in Canada?

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Correct answer: C — Amoxicillin 500 mg TID

Amoxicillin 500 mg three times daily for 5-7 days is the first-line antibiotic for dentoalveolar infections in non-penicillin-allergic patients. It has a broad spectrum covering common oral pathogens (streptococci, Prevotella, Fusobacterium). For penicillin-allergic patients, clindamycin 300 mg QID or azithromycin are alternatives. Metronidazole alone covers only anaerobes and is often combined with amoxicillin for severe infections.

Reference: CDA – Antibiotic Prescribing for Dental Practitioners, 2019