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Tooth affected with dentinogenesis imperfecta are generally of which shape

 # Tooth affected with dentinogenesis imperfecta are generally of which shape?
A. Tulip
B. Conical
C. Shell
D. Ovoid


The correct answer is A. Tulip.

Aberration in chromosome 4 (loci4q21.3) is associated with Dentinogenesis imperfecta. It encodes dentin specific sialophospho protein (DSPP) gene. Deficiency of sialoprotein is also suggested as a causative factor for Dentinogenesis imperfecta. Tooth affected with dentinogenesis imperfecta are generally tulip shaped. 

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