Over the past two decades, several studies have demonstrated that mandibular retrusion is a common skeletal feature in patients with Class II malocclusion.1, 2 Therefore, a common treatment strategy involves repositioning the mandible in a mesial direction to correct the Class II relationship. It has been suggested that forward repositioning of the mandible in patients with a Class II malocclusion can be achieved during the late mixed dentition and early adolescence period, usually at cervical vertebral maturation Stages 1–4 and ages 8–16 years,3 as remodelling of the temporomandibular area has been shown to be capable of adapting to condylar displacement.4, 5