Pain ThresholdToothachePainPain PerceptionPain MeasurementSensory ThresholdsMouthwashesOral HealthTranscutaneous Electric Nerve StimulationStomatitisDental Health SurveysPain ManagementMouth DiseasesMouth MucosaHyperalgesiaChronic PainThermosensingSalicylatesPain, ReferredPain, PostoperativeAnalgesicsEar, ExternalDental CariesDental Pulp TestAnalgesiaNociceptorsFibromyalgiaFacial PainLow Back PainHot TemperaturePressurePhysical StimulationNeck PainAcupuncture PointsAcupuncture AnalgesiaWristBack PainHypesthesiaMyofascial Pain SyndromesAnalgesics, OpioidSensationNociceptive PainNeuralgiaAbdominal PainAnalgesics, Non-NarcoticPain, IntractableDifferential ThresholdElectric Stimulation TherapyAuditory ThresholdPelvic PainAcupuncture TherapyHyperesthesiaElectroacupunctureSomatosensory DisordersElectric StimulationDouble-Blind Methodbeta-EndorphinAcute PainIrritable Bowel SyndromeCold TemperatureRadial NerveMorphineTemporomandibular Joint Dysfunction SyndromeSkin TemperatureAnalysis of VarianceVibrationWhiplash InjuriesLidocaineMigraine DisordersAnesthetics, LocalTime FactorsCross-Over StudiesShoulder PainChronic DiseaseMusculoskeletal PainSkin Physiological PhenomenaEvoked Potentials, SomatosensoryPerceptionTouchNAV1.7 Voltage-Gated Sodium ChannelSpinal CordPreanesthetic MedicationSkinNAV1.8 Voltage-Gated Sodium ChannelInjections, SpinalSensation DisordersRats, Sprague-DawleyThoracic WallBehavior, AnimalNAV1.9 Voltage-Gated Sodium ChannelPeriaqueductal GrayLasersAcetaminophenEndorphinsDiabetic NeuropathiesNaloxoneQuestionnairesTreatment OutcomePeripheral NervesReproducibility of Results