A histologic evidence of widespread formation of globular hypocalcified dentin and pulp horns reaching the dentinoenamel junction, absence of lamina dura around the tooth in radiograph are the characteristic features of_____________?

Correct answer: A. Vitamin -D resistant rickets

A. Vitamin -D resistant rickets
B. Hypophosphatasia
C. Hypervitaminosis-A
D. Vitamin-A deficiency

Explanation

Vitamin D-resistant rickets produces defective dentin mineralization, including globular dentin, enlarged pulp horns and sometimes loss of the lamina dura. These dental findings distinguish it from vitamin A deficiency and hypophosphatasia.

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

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