4. Please describe embryonic development of mandible and its innervation. (30%)

You can use either English or Chinese to answer these questions. For treating a 12-year-old boy with Class II division 2 malocctusion, 1. Please describe the biomechanics of how you would design to distalize upper dentition in this boy with drawings to show the vectors and forces, what kinds of side effects you expected, and how to prevent them. (25%)