Conscious SedationMidazolamDeep SedationHypnotics and SedativesAnesthesia, DentalPropofolPreanesthetic MedicationHydroxyzineAnesthetics, IntravenousAnesthesia, LocalAnesthesia Recovery PeriodDental AnxietyAnesthesia, GeneralChloral HydrateAnesthesia, IntravenousConsciousnessAnesthesia, RectalMeperidineDiazepamDexmedetomidineAlphaprodineEndoscopy, Digestive SystemFentanylDentistry, OperativeBurns, ElectricManifest Anxiety ScaleAnti-Anxiety AgentsNitrous OxideTooth ExtractionDental ImplantationEndoscopy, GastrointestinalAdjuvants, AnesthesiaGastric BalloonKetamineDouble-Blind MethodFlumazenilProspective StudiesBenzodiazepinesAnesthetics, CombinedColonoscopyAnalgesiaInjections, IntravenousIntubation, IntratrachealPatient SatisfactionAnesthetics, DissociativeConsciousness MonitorsBronchoscopyCholangiopancreatography, Endoscopic RetrogradeGABA ModulatorsAlfentanilPainAnalgesics, OpioidElectroencephalographyLorazepamPilot ProjectsAnesthesiaCytochrome P-450 CYP3AOxygenTreatment OutcomeRespiration, ArtificialAnxietyTime FactorsHeart RateDroperidolPremedicationNeurosurgical ProceduresMedetomidineIntensive Care UnitsInfusions, IntravenousTriazolamBlood PressureAnalgesicsDose-Response Relationship, DrugDrug InteractionsEquipment DesignAnestheticsPsychomotor AgitationMethohexitalAnesthetics, Inhalation