Snoring is a sign of airway narrowing. Snoring or obstructive sleep apnea (OSA) affects 90 million Americans. Of habitually loud snorers, 16% will have OSA. People with OSA are 10 times more likely to die in a car accident. Oral appliances can be used to reposition the lower jaw and eliminate upper airway obstruction. Oral appliances are less effective than CPAP but are better tolerated by patients. Oral appliances are safe and effective therapy in patients with mild- moderate OSA , snoring difficulties, and in severe OSA patients that cannot tolerate the CPAP.