Sleep Apnea, ObstructiveSleep Apnea SyndromesPolysomnographyContinuous Positive Airway PressureSnoringUvulaSleepAdenoidectomyTonsillectomyPalate, SoftMandibular AdvancementPositive-Pressure RespirationPharynxDisorders of Excessive SomnolenceAdenoidsSyndromeSleep, REMSleep Apnea, CentralSleep StagesPharyngeal MusclesSeverity of Illness IndexWakefulnessTongueSleep DisordersOximetryOrthodontic Appliances, RemovableNasal ObstructionMouth BreathingOropharynxBody Mass IndexAnoxiaRespirationAirway ObstructionArousalAirway ResistanceObesity Hypoventilation SyndromeCase-Control StudiesObesityOxygenCephalometryRisk FactorsProspective StudiesCircadian RhythmPatient CompliancePalatine TonsilPulmonary VentilationTreatment OutcomeMonitoring, AmbulatoryRespiratory MechanicsNosePrevalenceQuestionnairesVentilators, Negative-PressurePalateGlossectomyOcclusal SplintsHypercapniaRespiratory Function TestsFollow-Up StudiesWakefulness-Promoting AgentsHypertrophyTokyoRespiration DisordersPulmonary Disease, Chronic ObstructiveComorbidityMandibleMacroglossiaElectroencephalographyStatistics, NonparametricPostureDown SyndromeStroop TestRetrospective StudiesMetabolic Syndrome XTime FactorsBlood PressureNasal CavityHypertensionLung Diseases, ObstructiveHeart RateHyoid BoneCross-Over StudiesApnea