Comparison of collum angle and labial crown-root angle of maxillary central incisor in Class I and Class II division 2 malocclusion

Introduction: Variation in tooth morphology widely influences the achievement of optimum esthetics and stable occlusal relationship. This study was conducted to compare collum angle labial crown root angles class I, II division 2 malocclusions, using cephalometric radiographs, find a correlation between these angles. Methods: cross-sectional from March 2018 January 2021 among patients visiting department Orthodontics at Gandaki Medical College. A total 62 lateral cephalograms were included equally divided into groups: Angle’s Class I 2. Cephalometric tracing done measure maxillary central incisors. Pearson’s test independent t-test used. Results: There weak positive (r=+0.348) group, (p=0.27) moderate (r=+0.547) group (p<0.001). The mean found be greater (11.90±6.86) than (4.51±4.13) which statistically significant (39.65±8.57) (30.23±5.20) Conclusions: no crown-root groups. both