Pediatric Dentistry · single question
A 7-year-old male's tooth #24 (mandibular left central incisor, primary) is intruded 4 mm after a fall. What is the most appropriate treatment option?
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Correct answer: D. Wait for tooth to re-erupt
For INTRUSION of a PRIMARY (baby) tooth, the treatment depends on the direction of intrusion and whether it endangers the permanent successor. The preferred management for primary tooth intrusion is usually to OBSERVE AND WAIT for spontaneous re-eruption (which occurs in most cases within 1-3 months). Repositioning is not recommended because manipulation risks damaging the permanent tooth bud. Extraction is indicated only if the tooth is intruded toward the permanent bud (labially displaced, pointing into the bud).
- A. INCORRECT. Flexible splinting and RCT are for permanent tooth intrusions or after repositioning — not for primary tooth intrusions where spontaneous re-eruption is expected.
- B. INCORRECT. Rigid splinting is used for certain permanent tooth luxations — it is not appropriate for primary tooth intrusion management.
- C. INCORRECT. Extraction of the primary tooth is indicated ONLY if the apex is displaced labially toward the permanent tooth bud — in this case it is a simple intrusion without this concern.
- D. CORRECT. The preferred management for primary tooth intrusion (especially when the tooth is directed away from the permanent successor) is to WAIT for spontaneous re-eruption. Most primary intruded teeth re-erupt within 1-3 months.
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