Radiology · single question
A patient with Down syndrome has a panoramic radiograph showing numerous (six or more) congenitally missing teeth. This is:
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Correct answer: A. Oligodontia
- A. Correct. Oligodontia is the congenital absence of six or more teeth (excluding third molars) — a common finding in Down syndrome.
- B. Taurodontism describes enlarged pulp chambers, not missing teeth (though it can co-occur).
- C. Anodontia is the complete absence of ALL teeth — too extreme for this description.
- D. Hyperdontia is EXTRA teeth, the opposite of what is shown.