The Efficacy of Mandibular Advancement Appliances as a Treatment Alternative to Continuous Positive Airway Pressure in Moderate OSAHS

A long-term prospective observational study was undertaken in which patients with moderate OSAHS and in whom CPAP use had failed, to determine treatment compliance with MAA therapy, after a minimum period of 18 months, using an objective monitor. Treatment outcomes included both objective sleep monitoring and a determination of the therapeutic efficacy based on the calculation of the mean disease alleviation (MDA).