This course is limited to orthodontics graduate residents in the second year of their specialty training. An analysis of standard orthodontic appliances discussing the theory, indications, and contraindications of each is carried out. Extensive technique and seminar courses are presented and include practice administration considerations. This course aims to expand the graduate orthodontic resident's expertise in advanced orthodontic diagnosis and treatment planning that was introduced in Orthodontics 1. A multidisciplinary and, where indicated, interdisciplinary approach to the various orthodontic mechanisms is stressed.