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Anatomy & Histology · single question

Which correctly sequences embryologic tooth development?

  1. Bell → Cap → Bud → Apposition → Calcification
  2. Calcification → Apposition → Bell → Cap → Bud
  3. Apposition → Calcification → Bud → Cap → Bell
  4. Bud → Cap → Bell → Apposition → Calcification
Show answer and explanation

Correct answer: D. Bud → Cap → Bell → Apposition → Calcification

  • A. Incorrect. Bell does not precede cap — the correct order is bud, then cap, then bell.
  • B. Incorrect. The early morphologic stages (bud, cap, bell) precede matrix apposition and calcification.
  • C. Incorrect. This is reversed — bud comes before cap and bell, not after apposition and calcification.
  • D. Correct. The correct sequence of tooth development is: BUD → CAP → BELL → APPOSITION (matrix deposition) → CALCIFICATION (mineralization). These stages reflect the progressive morphodifferentiation of the tooth germ followed by histodifferentiation and then hard tissue formation.

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