Post-treatment clinical examination showed that crowding was relieved by a 4 mm increase in the intermolar width of the maxillary and mandibular arches. Additionally, a class I molar and canine relationship was achieved with good occlusion (Figure 5) and a pleasing smile (Figure 6). Post-treatment lateral cephalometric radiographs showed that the mandible had grown forward in the sagittal dimension, improving the skeletal profile (Figure 7b). The upper incisors were proclined by 15 degrees to achieve ideal labio-lingual inclination for optimum aesthetics; the lower incisor was optimally positioned to achieve ideal overjet and overbite (Figure 7b). Mandibular anterior teeth were intruded to correct the impinging overbite and level the Curve of Spee. Finally, the patient was referred to an oral surgeon for extraction of the third molars.