INBDE (Integrated National Board Dental Examination) Practice Exam

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Radicular cysts derive from what developmental cell?

  1. Epithelial rests of Malassez

  2. Rests of dental lamina

  3. Ghost cells

  4. Calcified falx cerebre

The correct answer is: Epithelial rests of Malassez

Radicular cysts typically arise from the epithelial rests of Malassez, which are remnants of Hertwig's root sheath that form during tooth development. The other options listed are not involved in the formation of radicular cysts. B) Rests of dental lamina are involved in the development of odontogenic cysts, but not specifically radicular cysts. C) Ghost cells are associated with calcifying odontogenic cysts, not radicular cysts. D) Calcified falx cerebre is a normal anatomical structure, not associated with cyst formation.

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