There are several sleep disorders reported by the American Academy of Sleep Medicine. Among them, one of the most common is obstructive sleep apnea-obstructive sleep hypopnea syndrome.

In the last decade, several functional appliances have been developed for the treatment of snoring and obstructive sleep apnea, with the mechanism of action is a change in position of the jaw, tongue and other structures of the upper airway.

Considering these problems the aim was to establish linear and volumetric measurements of the upper airway of five patients with OSA who were using a mandibular advancement device (SOS apnea ^® ) using the software Dolphing Imaging ^® , determining the amount of linear increase and by volume of the upper airway, and the results of the polysomnographic tests with and without the use of the device.

The results show an increase of airway volume and improvement of polysomnographic testing with the use of the mandibular advancement device proving to be a viable alternative when compared to surgical procedures in the treatment of snoring and obstructive sleep apnea.

Conflict of interest: None declared.