Development of the dentinocemental junction (DCJ) involves newly formed odontoblasts and cementoblasts. The root sheath must separate from the dentinal surface to establish the dentinocemental junction (DCJ).
A) Both statements are true.
B) The first statement is true; the second is false.
C) The first statement is false; the second is true.
D) Both statements are false.

Question

Quizplus · Accepted Answer

As the root sheath grows from the cervical line into deeper connective tissue, cells of the dental papilla become odontoblasts and begin to secrete dentin. Cellular influences cause the root sheath to break up and separate from this newly formed dentinal surface. During this process some of the dental sac cells begin to change into cementoblasts and begin to form cementum. This cementum is laid down against the previously formed dentin and establishes the dentinocemental junction (DEJ).

Development of the Dentinocemental Junction (DCJ) Involves Newly Formed Odontoblasts