From Great Lakes Orthodontics, the Apnea Guard® prefabricated oral appliance predicts the patient’s therapeutic position and produces outcomes equivalent to a custom appliance. Ideal for immediate placement, the Apnea Guard Combo Kit accommodates a full range of arch widths with three vertical sizes, and advances the mandible in 1mm increments for up to 29 nights. Apnea Guard uses PVS impression material common to most dental offices, and settings can be precisely transferred to a custom device. The convenient Combo Kit includes five Apnea Guards: 1-Low (5.5mm), 3-Medium (6.5mm), and 1-High (8mm).