Background: The evaluation of skeletal, dental & soft tissue is a prime importance in Class II malocclusion in orthodontics. Various treatment protocols used for correction of Class II malocclusion bring about changes in the skeletal, dental &soft tissue. Therefore, a need was felt for comparing the changes in skeletal, dental and soft tissue parameters in Class II subjects treated with Twin block, Forsus fixed functional appliance and BSSO mandibular advancement surgery.
Materials and Methods: Standardized lateral cephalograms of patients were screened according to treatment methodology-Twin Block, Forsus fixed functional appliance and BSSO mandibular advancement surgery. 45 patients thus selected were divided into Twin Block, Forsus fixed appliance group and BSSO mandibular advancement group (15 each). Pre and post treatment cephalograms of each patient were analysed for linear and angular measurements.
Results: On comparing Twin block pre and post treatment values in relation to skeletal, dental and soft tissue parameters. There was highly significant change in the SNB, ANB, ANS-Me and U1-to NA-Angle, U1-to NA-Linear. S line to U-LIP values were also clinically significant.
On comparing Forsus pre and post treatment values in relation to skeletal, dental and soft tissue parameters. There was highly significant change in the Go-Gn -SN, S line to L-LIP and SNB, ANB, ANS-Me, Maxillary length and U1-to NB-Angle, U1-to NA-Linear, S line to U-LIP values were clinically significant.
Conclusion: It can be concluded from the present study that skeletal parameters improve more with BSSO advancement followed by Twin block as compared to Forsus fixed functional. There is more improvement in ANB, lower anterior facial height in all the three groups.
Keywords: Forsus fixed functional appliance, BSSO mandibular advancement surgery, Twin block.
