Case report Fig. 3: Initial records. PATIENT INFORMATION: * 14-year-old boy. * Chief concern: overbite and crowding. * Orthodontic diagnosis: * Right side: Class II molar and canine (moderate). * Left side: Class II molar and canine (severe). * Overbite: severe deep bite. * Upper arch: moderate crowding, with retroclined incisors. * Lower arch: moderate crowding. Fig. 4 Table 1: Initial key cephalometric values. Measurement (deg) SNA SNB ANB U1-SN L1-MP Intercisal angle FMA Initial 83.1 73.3 9.9 82.8 84.9 138.4 35.5 Norm 82 80 2.0 103 90 135 25 Std Dev 2.0 2.0 1.5 6.0 4.5 6.0 2.0 Treatment Fig. 5: How the precision wings (in blue) appear in the ClinCheck treatment plan setup. Fig. 6: Three-month progress records, with weekly aligner changes. Fig. 7: Six-month progress records, with weekly aligner changes. Class I molar and canine relationship was achieved, but the transverse and posterior vertical dimensions still needed correction. Fig. 8: End of mandibular advancement phase, with weekly aligner changes for 12 months. (Upper and lower: 23, then 26, each.) Fig. 9: Midtreatment cephalometric superimposition. Table 2: Key cephalometric values after mandibular advancement. Measurement (deg) SNA SNB ANB U1-SN L1-MP Intercisal angle FMA Initial 83.1 73.3 9.9 82.8 84.9 138.4 35.5 DECEMBER 2023 | 36 | ORTHOTOWN.COM Post-MBA 81.4 73.9 7.5 96.0 94.9 134.8 34.3 Norm 82 80 2.0 103 90 135 25 Std Dev 2.0 2.0 1.5 6.0 4.5 6.0 2.0http://www.ORTHOTOWN.COM