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Pathology · single question

Which of the following is an oral manifestation of Down Syndrome (Trisomy 21)?

  1. Macrodontia
  2. Supernumerary teeth
  3. Microglossia
  4. Open anterior bite
Show answer and explanation

Correct answer: D. Open anterior bite

  • A. INCORRECT — Down Syndrome is associated with MICRODONTIA (smaller teeth), not macrodontia.
  • B. INCORRECT — Supernumerary teeth are not a characteristic finding of Down Syndrome. Hypodontia (missing teeth) is more common.
  • C. INCORRECT — Down Syndrome is associated with MACROGLOSSIA (enlarged tongue), not microglossia.
  • D. CORRECT — Open anterior bite is a recognized occlusal finding in Down Syndrome, along with macroglossia (enlarged tongue causing tongue thrust), hypodontia, and delayed eruption. The macroglossia contributes to anterior open bite.

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