Evaluation of the Treatment Outcomes for Class II Malocclusion by Using PowerScope Appliance

Objective: This study was designed to evaluate the treatment outcomes for ClassII 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 skeletalClass 2 and Angle Class II division 1 malocclusion. All patients didn’t undergo anyorthodontic treatment previously and were free of systemic diseases that affect craniofacialgrowth. Pre and post‑treatment lateral cephalograms were obtained, cephalometricanalysis was performed. Class I relation were obtained in with a substantialimprovement in facial profile, skeletal jaw relationship, and overall esthetic appearanceof the patient. A significant forward displacement of the mandible was the principalelement for successful correction of Class II malocclusion. Results: Restrictionof maxillary growth with significant mandibular growth were observed with Power-Scope appliance. The Class II correction was obtained mainly by slight maxillary molardistalization and intrusion, in addition to mesial migration of the mandibular molarsand flaring of the lower incisors. Soft tissue profile improvements was observed withthis appliance. Conclusions: PowerScope appliance provides an effective correctionof Class II division 1 malocclusion in adolescent patients as it promotes restrictionof anterior maxillary displacement with significant forward mandibular repositioningwhich reduces both skeletal and soft tissue profile convexities. PowerScope appliancecaused dentoalveolar changes including slight maxillary molar distalization, in additionto mesialization of the lower molars and proclination of the lower incisors which resultsin correction of Class II malocclusion.