The dentin matrix creates a barrier between the dental papilla and the preameloblasts. With the resulting fluid shift and change in polarity, the preameloblast becomes an ameloblast.
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

The barrier between the dentin matrix and dental papilla adversely affects the nutrient supply of the preameloblast. To compensate new vascular channels penetrate the enamel organ, enabling fluid nutrients to access the preameloblasts. With the resulting change in polarity the preameloblast becomes an ameloblast and is ready to secrete the enamel matrix.

The Dentin Matrix Creates a Barrier Between the Dental Papilla