Özet:

Purpose: A large number of sefalometric analyses have been suggested in order to diagnose the sagittal incompatibility of the craniofacial structures. The aim of this study is to compare the reliability and validity of different sefalometric skeletal analyses. Material-Method: Our study included the lateral sephalometric radiography records of 72 patients with different skeletal anomalies (35 men, 37 women; average age: 19.6 ± 2.3 years). In the lateral sefalometric radiographs of patients, the ANB angle, the Wits measurement, the Beta angle, the Yen angle, the Downs convexity angle and the W angle are measured. Patients are classified in classes I, II and III according to the ANB angle used in lateral sephalograms. Pearson has made a correlation to verify the validity of the analyses made among themselves. The ANOVA test has been applied to find the relationship between the analyses and the skeletal classifications. Results: All the analyses made showed a statistically meaningful difference for the values of each of the three skeletal classifications (p<0,05). The correlation values of all the sagittal direction analyses measured were high (±0.8

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