Deep SedationConscious SedationHypnotics and SedativesAnesthesia, DentalMidazolamPropofolAnesthetics, IntravenousChloral HydrateAnesthesia Recovery PeriodAnesthesia, GeneralHydroxyzineDelayed Emergence from AnesthesiaPreanesthetic MedicationAnesthesia, LocalEuthanasiaDental AnxietyFentanylAnesthetics, DissociativeAnesthesia, RectalInteractive Ventilatory SupportConsciousnessLaryngismusAnesthesia, IntravenousMeperidineAlphaprodineAnesthetics, CombinedEndoscopy, Digestive SystemDexmedetomidineDiazepamSuicide, AssistedDentistry, OperativeBurns, ElectricKetamineManifest Anxiety ScaleDental ImplantationNitrous OxideProspective StudiesGastric BalloonEndoscopy, GastrointestinalTooth ExtractionColonoscopyTerminal CareElectroencephalographyAnalgesiaIntubation, IntratrachealHeart RateBelgiumPatient SatisfactionDouble-Blind MethodCholangiopancreatography, Endoscopic RetrogradeBronchoscopyConsciousness MonitorsInjections, IntravenousPain