ADC Practice Question — Replantation Protocols — Closed & Open Apex

this 10-year-old, what specific complication should…

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.

A 10-year-old boy's closed-apex upper central incisor was dry for 2 hours before being found and brought to the clinic. The tooth is intact. The parents ask about long-term prognosis and what to expect. In this 10-year-old, what specific complication should the parents be warned about as the child grows?

A. The replanted tooth will require root canal retreatment every 2 years throughout adolescence
B. The tooth may become ankylosed and infra-positioned, potentially requiring decoronation later
C. The tooth will erupt more rapidly than adjacent teeth, creating a suprapositioned appearance
D. Adjacent teeth will shift and crowd around the replanted tooth causing orthodontic problems

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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: 'Parents should be informed that decoronation or other procedures such as autotransplantation might be necessary later if the replanted tooth becomes ankylosed and infra-positioned, depending on the patient's growth rate.' SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 3.1.3

Source: Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Section 3.1.3

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

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How do I approach an unfamiliar Replantation Protocols — Closed & Open Apex vignette?

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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