Aim: The main objective of the study is to assess and compare the skeletal and dental changes obtained before and after treatment using centrographic analysis in patients with class II skeletal base using three different treatment modalities - Functional, Fixed Functional and Surgical (BSSO advancement). Materials and methods: A sample of 240 retrospectively collected pre-and post-treatment lateral cephalograms of class II malocclusion treated by orthodontics or orthodontic-surgical combined approach are included. The samples are grouped as Group I - Functional appliances (Twin Block appliance), Group II - Fixed functional appliances (AdvnSync II) and Group III - Surgical (BSSO advancement). The lateral cephalograms are traced and analysed using Centro-graphic analysis on FACAD 3.10 (Ilexis AB, Sweden). The post-treatment cephalograms are analysed to compare the treatment outcomes amongst the groups. Results: The results show high statistical significance in post-treatment class II skeletal correction among the three groups — also, a sharp reduction in the prognathic maxilla in the fixed functional group. The post-treatment mandibular prognathism was observed in the functional and surgical group. In terms of vertical component, the most significant neutral position of FC was found to be in the fixed functional group. Conclusion: This study primarily establishes a non-numerical method of evidence of highly significant mandibular changes were observed across the three groups. The most effectively treated subjects were found to be of the BSSO advancement group followed by functional and fixed functional groups, respectively.