Norms of size and annual increments of six anatomical measures of the cranium in boys and girls from four to fifteen years of age

Abstract

Norms of size and annual increments of six cranial dimensions are presented. The sample consists of 20 boys and 23 girls observed longitudinally from 4 to 15 years of age. The reported measurements are corrected for magnification of distortion and represent actual size rather than a roentgenographic projection. The dimensions of the cranial vault are observed to be closer to the adult size at age four years than the dimension involving the cranial base. The cranial base dimension continues to grow until adolescence. The elongation in cranial base dimensions during adolescence may be attributed to bone deposition on glabella.

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