Which combination of findings is most incompatible…
Paediatric dentistry questions combine clinical management with age-appropriate considerations — LA dosing by weight, behaviour management. This exam-level vignette tests your ability to work through clinical details and arrive at the correct management.
A 4-year-old presents with a torn upper labial frenum, bilateral ear bruising, and bruises at different stages of healing on the arms. The parent says the child fell off a swing. Which combination of findings is most incompatible with the stated mechanism of injury?
- A. All findings are consistent with a swing fall
- B. Bilateral ear bruising is the most incompatible finding
- C. The torn frenum alone confirms abuse
- D. Only fractures are incompatible with a fall
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Bilateral ear bruising is the most incompatible finding — ears are "protected sites" that are very rarely injured in falls but commonly injured by slapping or grabbing. Combined with: torn labial frenum (can occur in falls but is a sentinel injury for forced feeding or direct facial trauma), and bruises at different stages of healing (indicating injuries sustained at DIFFERENT times, not a single incident). A swing fall would produce unilateral abrasions with a consistent age, not bilateral protected-site bruising with multi-age bruises. The history does not match the injuries — this triggers mandatory reporting obligations regardless of certainty
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