This lecture and seminar course for students in Year 1 of the MSc Orthodontics program comprises lectures, preclinical seminars, and diagnostic case analyses. The objective is to teach students to recognize and diagnose the various forms of malocclusion, and understand the etiologic factors associated with the genesis of orthodontic abnormalities. Cephalometric and model analyses are studied as the basis for providing knowledge of normal and abnormal facial development. Students participate in lectures and lead case analysis seminars and preclinical diagnostic exercises they conduct with DDS2 and International Dentist Advanced Placement Program students, designed to prepare them for future clinical practice.