CPAP is a very effective treatment method for eliminating sleep apnea in case you can tolerate the mask. Some patients can't sleep with that mask, it bothers them and they often get a dry mouth. Oral appliances are usually better tolerated by patients than a CPAP machine. The devices should be custom made by a dentist or orthodontists. This is a more modern treatment and gives great results in patients with light to moderate obstructive sleep apnea.