Dental EnamelDental Enamel SolubilityTooth DemineralizationTooth RemineralizationCariostatic AgentsTooth ErosionDental Enamel ProteinsHardnessEnamel OrganMicroradiographyDental Enamel HypoplasiaFluoridesPolyurethanesAcid Etching, DentalToothpastesTin FluoridesDentinAmelogenesisCarbonated BeveragesFluorides, TopicalShear StrengthMaterials TestingDental BondingAmelogeninComposite ResinsAmeloblastsDental Stress AnalysisSurface PropertiesMicroscopy, Electron, ScanningTooth CalcificationResin CementsEnamel MicroabrasionMatrix Metalloproteinase 20MolarToothDental Enamel PermeabilityAnalysis of VarianceIncisorAmelogenesis ImperfectaPhosphoric AcidsOdontogenesisOrthodontic BracketsTooth, DeciduousFluorosis, DentalDental CariesHardness TestsTooth DiscolorationTooth AbrasionDentifricesTooth Bleaching AgentsBicuspidDental EtchingTooth CrownDental CementsBisphenol A-Glycidyl MethacrylateAdhesivesDental PellicleTooth WearMethacrylatesDentin-Bonding AgentsTooth ResorptionDental Restoration, PermanentDentition, PermanentAcrylic ResinsAluminum SilicatesCariogenic AgentsSodium FluorideGlass Ionomer CementsDental MaterialsDurapatiteCalcium PhosphatesPaleodontologyTooth Abnormalities