Comparative Evaluation of Skeletal, Dentoalveolar and Soft Tissue Effects between the Forsus FRD and Advansync2 Fixed Functional Appliances in Treating Skeletal Class II Malocclusion -- A Randomised Clinical Trial.

Aim: To evaluate and Compare Skeletal, Dentoalveolar and Soft tissue effects of the Forsus FRD and AdvanSync2 Fixed Functional Appliances for correction of Angle's Class II Division 1 Malocclusion. Material and Methods: Twenty Participants were selected and randomly divided into Group 1 (Forsus FRD) and Group 2 (AdvanSync2). In Group I: After alignment and levelling, with tightly cinched 0.019*0.025 Stainless Steel Arch Wires in both upper and lower arches along with Trans-Palatal Arch in Maxilla for additional Anchorage, Forsus FRD Fixed Functional Appliance were inserted. In Group II: Pre-Adjusted Edgewise fixed Mechanotherapy with 0.022 MBT bracket system were bonded in both the upper and the lower arches. AdvanSync2 Appliance was installed simultaneously along with initiation of Aligning and levelling on the same appointment. Lateral Cephalograms were taken at time intervals T0 (Before Starting Fixed-Functional appliance therapy) & T1 (After completion of Fixed-Functional appliance therapy) were analyzed with selected skeletal, dental and soft-tissue parameters on Dolphin Imaging Software (Version 11.5). Results: Comparison between two groups suggest that the Forsus FRD group and AdvanSync2 Group showed similar pre and post treatment Skeletal, Dentoalveolar and soft tissue Effects except AdvanSync2 group showed significantly higher Angle SNA-T1-T0 difference (p < 0.001) and Advansync2 group has a significantly greater angle FMA-T1 and FMA-T1-T0 (p < 0.001) difference compared to the Forsus FRD group. U6-NF Angular-T1 and U6-NF Angular-T1-T0 difference is significantly higher (p < 0.001) in Forsus FRD group and that L6- MP Angular-T1 and L6- MP Angular-T1-T0 (p < 0.001) difference is significantly higher in AdvanSync2 group. Conclusion: Both Forsus FRD and Advansync2 Fixed Functional Appliance aid in the treatment of Class II malocclusion in post-pubertal patients with maximum Dentoalveolar alterations, minimum Skeletal alterations and mild Soft Tissue alteration. AdavnSync2 Fixed Functional Appliance reported headgear effect on maxilla unlike Forsus FRD. Compared to Forsus FRD, AdavnSync2 Fixed Functional Appliance reported significant increase in facial divergence. AdavnSync2 Fixed Functional Appliance reported mesial tipping of mandibular first permanent molars unlike Forsus FRD. Compared to AdavnSync2, Forsus FRD appliance reported significant distal tipping of maxillary first molars. [ABSTRACT FROM AUTHOR]