Comparison of Three-Dimensional Cephalometric Measurements of Different Populations

Abstract

Objective: The purpose of this study is to compare three-dimensional cephalometric measurements of the skeleton and dentoalveolar region between Turkish individuals and individuals from other populations. Methods: This is a single-center, retrospective study using cone beam computed tomography images (CBCT). Individuals have no missing teeth, are between the ages of 18 and 30, have a balanced profile, and have an Angle Class I relationship. The CBCT images were obtained in DICOM format and analyzed in DOLPHIN 11.8 software. 61 parameters were measured on the CBCT images, and 14 parameters were contrasted with individuals from other populations. Results: Mandibular values were more protrusive in Korean and Chinese populations than in Turkish and Cypriot individuals. Similarly, upper facial height (N- ANS distance) was found to be much higher. It was found that the length of the mandibular corpus was shorter and the angle of convexity was higher in Turks and Cypriots than in Koreans and Chinese populations. Conclusion: Ethnic facial and skeletal characteristics play a fundamental role in the outcome and course of orthodontic treatment. Gender differences also play an important role when facial sizes and proportions are compared in different societies.