Correlation between condylar assymetry and gonial angle

Objective: To investigate the correlation between gonial angle measurement and asymmetry of condyle and ramus. Materials and Methods: The study sample consisted of 60 patients reported to the dept of Orthodontics, K.V.G dental college, Sullia for orthodontic treatment. The preoperative orthopantamogram of these patients were taken and divided into 3 groups based on gonial angle as average angle, high angle and low angle. Condylar, ramal, and condylar plus ramal asymmetry values were computed for all of the subjects on orthopantomograms. Data was analysed statistically by means of individual t test and one-way analysis of variance by bonferroni test. Results: Student ‘t’ test showed that there was no statistically significant difference (p>0.05) among the three groups regarding the condylar, ramal and combined lengths. The effect of gonial angle on the asymmetry measurements was investigated by variance analysis (Bonferroni test). No statistically significant difference was found between the groups (p>0.05). Conclusion: From the study it was concluded that the vertical condylar, ramus and condylar plus ramus asymmetry index measurements were not affected by the gonial angle.