
Objective: The purpose of the study was to evaluate and establish norms for the class I subjects of kumaon population using the beta angle
Materials & Method: The sample included pre-treatment lateral cephalograms of 100 subjects belongIng to kumaon and possessing a skeletal class I malocclusion with pleasing profile (age 18-30 years) .
Result: No statistically significant difference were found in the beta angle values of Kumaon and Caucasian population .Beta angle norms for Caucasian population can be applied for both the population.
Conclusion: Beta angle is relatively a stable parameter in population with different ethnicities.