Phased Growth Pattern of the Cephalofacial Measurements on the Children in Taiwn

Abstract

The growth patterns of the cephalometrical measurement show possible phased changes in some groups. In this report, phased growth patterns are searched on the aboriginals in Taiwan.
The cephalometries are carried out on the aboriginal and Chinese children from 6 to 15 years old in Taiwan, namely the Paiwan, Ami, Bunun, Atayal and Chinese from middle China.
Differences between annual measurements are shown in the charts as the dots. The lacks of dots for three or more years are decided as a phased retardation of growth. The comparisons of the charts reveal the following results.
The phased growths of cephalic breadth are revealed in the all inquired groups and those of cephalic length are shown in about half of the groups. In the facial measurements, any phased growth patterns are not detected. Phased patterns show mainly two step growths but three step growth patterns are scarce.
There is no sexuality on the appearances of phased patterns. Phased growth patterns on cephalic measurements are common in all the groups, but facial measurements do not show any phased growth patterns. A study of the phased growth patten requires a most precise measurement.