A yearly two days crash course given to the second year orthodontic board residents enrolled in the Saudi Orthodontic Specialty Prgram (Saudi Orthodontic Board). It covers areas such as: Adhesives and cements in orthodntics, enamel etching and its alternatives, Bonding to non-conventional surfaces, orthodontic wires, friction in orthodontics, esthetic appliances in orthodontics, clear aligner therapy, temporary anchorage devices.