S shape of dentinal tubules is due to______________?

Correct answer: B. Crowding of odontoblasts

A. Incremental deposition
B. Crowding of odontoblasts
C. Peritubular dentin
D. Due to excess amount of organic component

Explanation

The S-shaped course of dentinal tubules results mainly from the crowding and changing movement of odontoblasts as they retreat toward the pulp during dentin formation. Peritubular dentin is deposited around the tubules but does not create their overall S-shaped path.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated 18 September 2026

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S shape of dentinal tubules is due to______________?

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