Obstructive Sleep Apnea (OSA) is the most common form of sleep apnea. It is a chronic condition that requires long-term treatment and management. There are several types of oral sleep appliances, however, that can successfully treat OSA in most people. Most are versions of a “mandibular repositioning dental appliance” that push the lower jaw forward, but there are oral sleep appliances that also restrain the tongue from falling backward. Both effectively reduce blockage of your airway, helping you to sleep better and decreasing snoring. Oral sleep appliances cannot be purchased over the counter. Only a qualified dentist may prescribe and fit the OSA.