The average diameter of coronal dentinal tubules near the pulp is____________?

Correct answer: B. 2-3 microns

  • A. 0.2-0.5 microns
  • B. 2-3 microns
  • C. 0.2-0.3 microns
  • D. 7 microns

Explanation

Coronal dentinal tubules are widest near the pulp, with an average diameter of about 2 to 3 micrometres, and become narrower toward the dentinoenamel junction. The smaller values describe peripheral tubules.

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