Comparative analysis of the gonial angle on lateral teleradiography and panoramic radiography in a normal-occlusion population.

Authors: MAMADOU LAMINE NDIAYE, Becaye toure, Babacar Toure, Sankoung SOUMBOUNDOU

DOI: 10.18231/j.ijmi.10923.1758688549

Keywords: Normal occlusion, Gonial angle, Panoramic x-ray Lateral teleradiograph

Abstract: Introduction. The gonial angle is an important parameter in diagnosis and prognosis in orthodontics, human identification, and anthropology. Lateral teleradiography is the examination of choice. It can also be studied on a panoramic radiograph. This study aimed to compare the value of the gonial angle on panoramic radiography and profile teleradiography in a Senegalese population. Materials and Methods. This was a cross-sectional study of 60 patients managed by the orthodontic department with class I skeletal angle. The gonial angle was studied using panoramic radiography and profile teleradiography. Radiographic examinations were carried out by a dental X-ray technician. An analysis of variance was performed to compare the mean values of the gonia angles. The significance level was set at p less than 0.05. Results. The mean values of the gonial angle were 119±6.8º on profile teleradiography. On panoramic radiography they were 119±7.17º on the right side and 120±7.19º on the left side. No statistically significant difference was found for gender (p=0.9). The analysis of variance showed no statistically significant difference between the two methods. Conclusion. In summary, it is possible to use panoramic radiography to measure the gonial angle with the same accuracy as lateral teleradiography. Although lateral teleradiography is considered more accurate for estimating the gonial angle, panoramic radiography can also provide useful information.