Which material is appropriate given this 12-year-old has 8 erupted permanent teeth (4 incisors + 4 first molars)?
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.
A 12-year-old arrives after a bicycle accident. Three teeth are involved: Tooth A (11) — closed apex, replanted by bystander at scene 20 minutes ago but rotated 30 degrees. Tooth B (21) — closed apex, stored in milk for 45 minutes after 5 minutes dry, not yet replanted. Tooth C (22) — open apex, found dry on the road after 70 minutes. All sockets are intact. No alveolar fractures. The dentist must manage all three teeth in one session. For the splinting of all three teeth, the dentist has both stainless steel wire (0.4mm) and nylon fishing line available. Which material is appropriate given this 12-year-old has 8 erupted permanent teeth (4 incisors + 4 first molars)?
- A. Nylon fishing line for all three — it is more flexible and promotes better healing than wire in children
- B. Stainless steel wire for all three — nylon is not recommended when there are only a few permanent teeth for stabilisation
- C. Nylon for Teeth A and B, wire for Tooth C — delayed replantation requires rigid stabilisation
- D. Either material can be used interchangeably — both produce identical healing outcomes at 2 weeks
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Integration: (1) 8 permanent teeth = 'only a few' → nylon not recommended. (2) No alveolar fracture → flexible (not rigid) regardless of Group. (3) All three teeth get the same splint type — wire ≤0.4mm bonded with composite. (4) Standard 2-week duration for all (no fracture). SOURCE — Fouad AF et al. IADT Avulsion Guidelines, Dent Traumatol 2020;36:331-342, Sections 3.1.1, 3.1.3, 8
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