Efficacy of the OrthoApnea NOA® Mandibular Advancement Device in the Management of Obstructive Sleep Apnea.

The efficacy of the appliance for the management of OSA will be stablished based on two criteria. Criterion I: \> 50% reduction of AHI/RDI. Criterion II: AHI/RDI \< 5 events/hour or \<15 events/hour with a significative reduction of OSA associates symptoms as defined before. Therapeutic failure will be established when at 100% of advancement of the device, there is less than 50% of reduction of the AHI/RDI with a residual AHI/RDI \>5 events/hour with OSA associates symptoms.