Comparison of Steiner Cephalometric analysis of lateral skull X-ray images with CBCT in a group of students of the dental school of the University of Cuenca

Abstract

The Steiner analysis from images obtained from cone beam computed tomography is one of the essential tools today for diagnosis in the area of orthodontics, within this aspect its high value for the study of points, angles and cephalometric planes allows the prediction of the possible treatment plan for each patient according to the specific characteristics resulting in each patient. Objective: To compare the results in Steiner cephalometric measurements obtained in 2D lateral skull radiographs and in 3D cephalograms generated from Cone Beam Computed Tomography (CBCT). Methodology: Type of comparative analytical study. A non-probabilistic sample was established by convenience consisting of 29 diagnostic studies divided into: 29 lateral skull X-rays and 29 standardized CBCT. Subsequent localization, tracing and measurement of skeletal and dental angles were performed according to Steiner's cephalometric analysis using Nemostudio 2022 software. The study and analysis was performed using the Intraclass Correlation Coefficient. Results: The mean difference between the skeletal angles SNA, SNB, ANB, SND and Occlusal Plane Angle showed that there is no significant discrepancy when performing a cephalometric analysis in three-dimensional images compared to two-dimensional images. Conclusion: There is a high degree of reliability and accuracy of cephalometric measurements for obtaining skeletal and dental angles in two-dimensional images obtained from a CBCT with respect to a lateral radiograph.