ADC Practice Question — First Aid & PDL Cell Viability

For which patient is replantation potentially NOT indicated?

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.

Three patients present with avulsed teeth: Patient A has well-controlled type 2 diabetes. Patient B has severe caries on the avulsed tooth itself. Patient C is a healthy 14-year-old whose tooth has been dry for 90 minutes. For which patient is replantation potentially NOT indicated?

A. Patient A — diabetes impairs healing and is a contraindication to replantation of avulsed teeth
B. Patient B — severe caries on the avulsed tooth is a listed reason replantation may not be indicated
C. Patient C — a 90-minute dry time means the tooth is unsalvageable and should not be replanted
D. None of them — the IADT recommends replantation in all circumstances without any exceptions

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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: 'There are individual situations when replantation is not indicated (eg, severe caries or periodontal disease).' Patient B's severely carious tooth may not be worth replanting. Patient A's controlled diabetes is not listed, and Patient C should still be replanted despite poor prognosis. SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 1

Source: Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 1

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 First Aid & PDL Cell Viability 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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For which patient is replantation potentially NOT indicated?

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