Oral appliances fitted by a dentist or orthodontist may be an option, including:
Mandibular advancement device (MAD): The most widely used mouth device for sleep apnea, MADs look much like a mouth guard used in sports. The devices snap over the upper and lower dental arches and have metal hinges that make it possible for the lower jaw to be eased forward.
Tongue retaining device: Used less commonly than MAD, this device is a splint that holds the tongue in place to keep the airway open.