Efficacy of a modified mandibular advancement device for a totally edentulous patient with severe obstructive sleep apnea

Background It has been asserted that the success rate of oral appliances was more satisfactory for mild to moderate obstructive sleep apnea (OSA) than severe ones; besides, there is a lack of literature about mandibular advancement device (MAD) application for edentulous patients with OSA. Report This clinical case shows fabrication method and treatment efficacy of a modified MAD, which is aiming to displace bulky masseter muscles laterally, to provide more space for tongue on totally edentulous patient with severe OSA.