Question 51 · LDEK · Craniofacial and occlusal development

Which of the following statements correctly describes stage D in the development of single root permanent teeth by Demirijan?

  1. A. mineralization sites merge, forming dental nodules.
  2. B. mineralization of the upper level of the crypt begins.
  3. C. crown formation is completed, up to the enamel-cement border.
  4. D. enamel formation on the chewing surface is completed.
  5. E. root canal walls have a parallel course.
Hint

Demirjian stages A–C describe crown mineralisation and E–H root development; stage D marks the boundary between the two.

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