Peg-shaped incisors that narrow towards the biting edge are commonly observed in all of the following disorders EXCEPT which one?

Explanation

Peg-shaped incisors, characterized by their tapered appearance towards the incisal edge, are typically found in conditions such as congenital syphilis, anhidrotic ectodermal dysplasia, and cases involving supernumerary teeth. However, this dental feature is not associated with rickets.