Avulsion Antibiotics Children — ORE Part 1 MCQ
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Correct answer: D — Amoxicillin (weight-appropriate dose) for 7 days
Current guidelines recommend systemic antibiotic therapy (SAT) following replantation of avulsed permanent teeth. Amoxicillin at weight-appropriate dose for 7 days is the recommended first-line prophylactic antibiotic. Option C (doxycycline) is contraindicated in children under 12 years due to risk of permanent yellow-brown discoloration of developing teeth. Option A (metronidazole) targets anaerobes and is not indicated for post-operative prophylaxis in this context. Option E contradicts current guideline recommendations which explicitly support systemic antibiotic use. Option B (clindamycin) is not standard for avulsed tooth replantation. The discriminating feature is appropriate drug selection and dosing for a paediatric patient, combined with knowledge of guideline-supported management.
Reference: Hinckfuss SE, Messer LB. An evidence-based assessment of the clinical guidelines for replanted avulsed teeth. Part II: prescription of systemic antibiotics. Dental Traumatology. 2009 Apr;25(2):158-64. https://pubmed.ncbi.nlm.nih.gov/19290893/