Improvement in Daytime Sleepiness by the Use of an Oral Appliance in a Patient with Upper Airway Resistance Syndrome.

This case report details the treatment outcome of an oral appliance (OA) used in a patient suffering from excessive daytime sleepiness (EDS) caused by an upper airway resistance syndrome (UARS). The patient demonstrated significant improvement in the multiple sleep latency test (MSLT) and the maintenance of wakefulness test (MWT) after treatment with an OA. The presented case suggests that an OA may be considered as a further treatment option for UARS.