Cephalometric norms related to Facial type in eugnathic Chilean adults.

摘要

Objective: The aim of this study was to determine cephalometric standards related to facial type in a eugnathic adult Chilean population and to compare them with the classical cephalometric parameters. Methods: Cross-sectional study. Ninety six eugnathic young Chilean adults (between 18 and 35 years old) were included in this study. Lateral digital standardized cephalometric radiographs were used. The cephalometric analysis used Quick-Ceph 2000? software. Results: The mean value of the gonial angle was 121.96o, the Bi?rk-Jarabak ratio was 67.11%, SN-GoGn angle was 32.65o, interbasal angle (Schwarz) was 23.8o, Ricketts VERT was 2.33 and Ricketts lower facial height 44.1o. There was a significant difference between men and women for the Bi?rk-Jarabak ratio, SN-GoGn, interbasal angle and Ricketts VERT. Conclusion: Cephalometric standards obtained are similar to those established by the original authors, except for the Bj?rk-Jarabak ratio and Ricketts lower facial height. However, there is a significative sexual dimorphism that should be considered when making a patient′s diagnosis.