Anatomy & Histology · single question

Which of the following correctly sequences the stages of embryologic tooth development?

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

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

Tooth development proceeds through the bud stage (initial proliferation of dental lamina), cap stage (early differentiation, enamel organ takes a cap shape), bell stage (further differentiation, cytodifferentiation of ameloblasts/odontoblasts begins), followed by the apposition stage (matrix secretion of enamel/dentin) and calcification stage (mineralization of the secreted matrix).

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