THE APPLICATION OF TEMPLATE CONSTRUCTED BY CEPHALOMETRIC ROENTGENOGRAMS IN HELLMAN DENTAL AGE FA WITH NORMAL OCCLUSION

Hellman 치령(齒齡) IV A 정상교합자(正常咬合者)의 두부방사선규격사진(頭部放射線規格寫眞)에 의(依)한 Template의 응용(應用)

The templates for male and female were constructed respectively by use of 36 male and 52 female cephalometric roentgenograms in Hellman Dental Age IV A with normal occlusion. The grids were drawn to show 1 standard deviation and 2 standard deviation on every reference point. 1. When the template is used for cephalometric analysis, w e can obtain comparatively accurate diagnosis even one or two refernces are distorted, because several references are used for analysis. 2. The method of using the template is simple enough to perform cephalometric analysis easily. 3. If the templates are constructed for every age and sex, we can predict the growth patterns of the patients in the period of growth.