A longitudinal study of 5 cephalometric plane angles in female children from 7 to 12 years old / 华西口腔医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>The aim of this study was to find the laws of angular changes of 5 cephalometric planes in children with mixed dentitions.</p><p><b>METHODS</b>Nineteen female children were annually examined with X-ray, and the cephalometric analysis was performed in continuous 4 years. Of these children, 10 children were investigated from the age of 7 years old, and the other 9 children from 9 years old. The two groups were longitudinally studied. All of the children were observed almost at the same age (9-10 years old) in the two groups, and the results were analyzed with mixed longitudinal methods. All data were analyzed with SPSS 8.0 software.</p><p><b>RESULTS</b>In the observation period, the angular relationship of FH to BaN remain constant among 5 cephalometric planes, and FH to SN was almost in the same situation.</p><p><b>CONCLUSION</b>In mixed dentition, the angular relationship of FH, BaN and SN barely change.</p>