cost of oral appliance for sleep apnea : Sleep apnea is a severe sleep disorder that can be treated using an oral appliance. At a sleep apnea treatment clinic, the cost of a dental device to help with sleep apnea can vary based on the severity of the condition, the type of appliance used, and if any additional treatments are needed. If you're looking for a sleep apnea dental appliance, visiting a sleep apnea treatment clinic is best, and we will be able to provide the best possible device for your individual needs. We also offer more cost-effective treatments, such as CPAP machines, and help you pick the best appliance for your case.