Comparative Evaluation of Hard-Tissue and Soft-Tissue Changes following Fixed Functional Appliance Treatment in a Skeletal Class II Malocclusion Using Forsus and PowerScope

Abstract Introduction The purpose of this study was to evaluate and compare the skeletal, dentoalveolar soft-tissue effects 2 fixed functional appliance; Forsus Fatigue Resistance Device (FFRD) PowerScope appliance in treating patients with skeletal class II division 1 malocclusion. Materials Methods This comparative prospective two-group included 20 a mean age 11.2 ± 1.6 years malocclusion retrognathic mandible. One group treated FFRD, second appliance. Lateral cephalograms were evaluated at T1 (pre-functional treatment)) T2 (postappliance treatment). Cephalometric values calculated assessed changes. Results Sagittal correction appeared be mainly achieved by changes group. FFRD able induce both A favorable influence on facial convexity groups. significant increase upper pharynx lower dimension seen statistically decrease lip protrusion, increased nasolabial angle, inferior labial sulcus noted Lower incisors proclined more Conclusion Both appliances effective correcting had mandible, whereas less mandible effects, contributing correction. groups showed improvement profile. airway dimensions.