Patients with Class II malocclusion are one the most commonly treated cases in a routine orthodontic practice. The kind of treatment modality chosen depends on various factors out of which the patient’s age growth status is an important one. In cases of patients in the growing age group, growth modulation therapy is usually the treatment of choice followed by a fixed orthodontic therapy. Various functional appliances have been developed over the years to achieve this goal. The twin Block appliance is one of the most commonly used which has proven to give great results.