ERROR OF THE METHOD AND STATISTICAL ANALYSIS
Ten cephalograms were randomly selected and retraced after a two-weeks interval, to determine the intra and inter-operator reliability. Allocation of all the traced cephalograms was done by a random list created online (https://www.random.org/). The reliability of recorded measurements was determined using intra-class correlation coefficient (ICC): ICC closer to 1 indicated highly reliable measurement. The data collected were compiled in Excel spreadsheet (Microsoft, Redmond, Wash) and transferred to SPSS v. 22.0 software (SPSS Inc., Chicago, IL, USA). Normality of the data distribution was verified using the Shapiro-Wilk test, and was found to be non-significant for all the variables. Gender comparison was performed using the Mann-Whitney U test. Age and treatment duration of the groups were compared using Student 