Back PainLow Back PainMuscle StrengthBackTensile StrengthShear StrengthHand StrengthCompressive StrengthBack InjuriesMuscle Strength DynamometerMaterials TestingDental BondingDental Stress AnalysisResin CementsOsmolar ConcentrationPliabilityComposite ResinsDentin-Bonding AgentsBiomechanical PhenomenaResistance TrainingStress, MechanicalMuscle, SkeletalSurface PropertiesAcid Etching, DentalMethacrylatesMuscle WeaknessPain MeasurementDental MaterialsAdhesivenessTime FactorsDentinSilanesAcrylic ResinsDental CementsDental EtchingWeight LiftingLumbar VertebraeIsometric ContractionFailed Back Surgery SyndromeExercise TherapyDental PorcelainAdhesivesBisphenol A-Glycidyl MethacrylateTorquePhosphoric AcidsDisability EvaluationOrthodontic BracketsDental AlloysAluminum OxideRange of Motion, ArticularLiftingLumbosacral RegionAnalysis of VarianceZirconiumDental EnamelPhysical Therapy ModalitiesQuadriceps MuscleMicroscopy, Electron, ScanningAluminum SilicatesPhysical FitnessNeck PainMethylmethacrylatesChronic PainLight-Curing of Dental AdhesivesWeight-BearingSpineCeramicsPinch StrengthRespiratory MusclesQuestionnairesGlass Ionomer CementsMuscle ContractionPolymethacrylic AcidsTemperatureBone DensityHydrogen-Ion ConcentrationKineticsHardnessHydrofluoric AcidWaterPhysical EnduranceKneePostureGlassOccupational DiseasesMechanical PhenomenaDental VeneersModels, BiologicalBone and BonesReproducibility of ResultsSpinal DiseasesMagnetic Resonance ImagingChiropracticStainless SteelDental Restoration FailurePostural BalancePolyurethanesAgingDenture BasesElectromyography