Radiology · single question

A radiopaque mass made of several small tooth-like structures, surrounded by a thin radiolucent halo, located between the premolars. Diagnosis?

  1. Compound odontoma
  2. Complex odontoma
  3. A single supernumerary tooth
  4. Cementoblastoma
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Correct answer: A. Compound odontoma

  • A. Correct. A compound odontoma is composed of multiple small, organized tooth-like denticles with a surrounding radiolucent rim, typically in the anterior/premolar region.
  • B. Incorrect. A complex odontoma is a disorganized, amorphous radiopaque mass with NO tooth-like forms, usually posterior.
  • C. Incorrect. A supernumerary tooth is a single, fully-formed extra tooth, not a cluster of denticles.
  • D. Incorrect. A cementoblastoma is a radiopaque mass fused to a tooth root, not a halo of denticles between teeth.

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