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Article Abstract
Purpose: To establish the standard values of roentgengraphic cephalometry in children with normal occlusion in Shandong district and to make the facial model.
Methods: 156 children were selected to take lateral cephalograph, and were divided into two groups: mixed dentition and early permanent dentition. Cephalograms were analyzed for all subjects with WinCeph7.0. Data were obtained for student's t test between the two groups and between males and females.
Results: The norms with derivation for all measurement of X ray cephalometrical analysis on hard tissues were established. Meanwhile, the difference between males and females was compared and the facial model of children with normal occlusion was made.
Conclusion: Gender difference was shown in linear measurements, with greater growth in males in general. The growing tendency of children from mixed dentition to early permanent dentition was that the maxilla of the male grows faster while the mandible of the female grows faster.
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