ADC Practice Question — Replantation Protocols — Closed & Open Apex

After replantation, what is the complete immediate post-operative protocol — antibiotics, oral hygiene, diet, and splint?

Dental trauma questions test protocol-level decisions — splint type, duration, follow-up timing — where one wrong detail means a wrong answer. This high-difficulty vignette tests your ability to work through clinical details and arrive at the correct management.

Two 14-year-olds present simultaneously. Patient X: closed apex incisor replanted by parent at scene 10 minutes post-injury (Group 1). Patient Y: closed apex incisor stored in saliva for 50 minutes after 8 minutes dry (Group 2). Both teeth are well-positioned. The dentist must plan both cases. Patient Y's tooth was in saliva for 50 minutes. After replantation, what is the complete immediate post-operative protocol — antibiotics, oral hygiene, diet, and splint?

A. Amoxicillin, chlorhexidine 0.12% twice daily for 2 weeks, soft diet for 2 weeks, passive flexible splint 0.4mm for 2 weeks
B. No antibiotics needed for Group 2, chlorhexidine once daily for 1 week, normal diet immediately, rigid splint for 4 weeks
C. Amoxicillin, no mouthwash recommended, soft diet for 1 week only, flexible splint for 4 weeks
D. Doxycycline for its anti-resorptive properties, chlorhexidine twice daily for 4 weeks, soft diet for 4 weeks, rigid splint

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Sources cited

Therapeutic Guidelines v4 Odell's 3rd & 4th Ed IADT 2020 Code of Conduct CMS (Evans) Infection Control + more

Show the answer and cited explanation

Correct answer: A

Complete post-op: (1) systemic antibiotics (amoxicillin first-line), (2) CHX 0.12% 2×/day for 2 weeks, (3) soft diet up to 2 weeks, (4) passive flexible splint ≤0.4mm for 2 weeks. Four protocol elements from Sections 5, 8, 9. SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Sections 3.1.2, 5, 8, 9

Source: Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Sections 5, 8, 9

Remy's study tip — Trauma questions hinge on: tooth maturity (open vs closed apex), time out of mouth, storage medium, and fracture type.

Exam preparation FAQ

How should I prepare for Dental Traumatology in the ADC exam?

Build competence across all topics. The exam tests application of guidelines to clinical scenarios, not memorisation.

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Extract key clinical data from the stem before reading options. There are usually 3–4 critical variables that determine the correct answer.

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