ADC Practice Question — Endodontic Considerations

What is the minimum duration the corticosteroid paste should remain in situ before replacement?

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

Two replanted closed-apex incisors in the same patient. Tooth X will receive calcium hydroxide. Tooth Y will receive a corticosteroid/antibiotic paste. The dentist reviews timing for each. What is the minimum duration the corticosteroid paste should remain in situ before replacement?

A. Up to 1 month — matching the calcium hydroxide protocol for consistency
B. At least 6 weeks — significantly longer than the calcium hydroxide duration
C. Exactly 2 weeks — it should be removed at the same time as the splint
D. Only 48 hours — corticosteroids lose effectiveness rapidly in the root canal environment

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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: B

IADT: corticosteroid paste 'left in situ for at least 6 weeks.' Compare Ca(OH)2: 'up to 1 month followed by root canal filling.' Different timing reflects different therapeutic mechanisms. SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 10

Source: Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 10

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 do I approach an unfamiliar Endodontic Considerations vignette?

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

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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What is the minimum duration the corticosteroid paste should remain in situ before replacement?

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