Comparison Between Aesthetic Functional Appliances and Twin Block in Correction of Skeletal Class II

Inclusion Criteria: * Skeletal Class II pattern with ANB angle exceeding 6° and Wits appraisal of 2 mm or more. * Mandibular deficiency (SNB angle less than 77°). * Growing patients. * No prior orthodontic intervention. * The vertical skeletal classification shows a horizontal or neutral growth pattern. * Overjet ≥ 8mm. Exclusion Criteria: * Developmental abnormalities with atypical or irregular patterns of growth and maturation. * Any indications or manifestations, as well as any prior medical records, of Tempro-Mandibular Joint (TMJ) disorders, such as the presence of clicking, pain, limitations, or deviations.