Objective: This study was designed to evaluate the treatment outcomes for Class
II malocclusion by using PowerScope Appliance. Patients, materials and methods:
A sample of 10 patients with an age range from 14 to 18 years, suffering from skeletal
Class 2 and Angle Class II division 1 malocclusion. All patients didn't undergo any
orthodontic treatment previously and were free of systemic diseases that affect craniofacial
growth. Pre and post‑treatment lateral cephalograms were obtained, cephalometric
analysis was performed. Class I relation were obtained in with a substantial
improvement in facial profile, skeletal jaw relationship, and overall esthetic appearance
of the patient. A significant forward displacement of the mandible was the principal
element for successful correction of Class II malocclusion. Results: Restriction
of maxillary growth with significant mandibular growth were observed with Power-
Scope appliance. The Class II correction was obtained mainly by slight maxillary molar
distalization and intrusion, in addition to mesial migration of the mandibular molars
and flaring of the lower incisors. Soft tissue profile improvements was observed with
this appliance. Conclusions: PowerScope appliance provides an effective correction
of Class II division 1 malocclusion in adolescent patients as it promotes restriction
of anterior maxillary displacement with significant forward mandibular repositioning
which reduces both skeletal and soft tissue profile convexities. PowerScope appliance
caused dentoalveolar changes including slight maxillary molar distalization, in addition
to mesialization of the lower molars and proclination of the lower incisors which results
in correction of Class II malocclusion.