Bone Demineralization, PathologicBone Demineralization TechniqueTooth DemineralizationRicketsDental EnamelBone and BonesFamilial Hypophosphatemic RicketsTooth RemineralizationHardness TestsCariostatic AgentsMicroradiographyDental Caries Activity TestsHypophosphatemia, FamilialFluorides, TopicalRoot CariesDentinDental CariesDental Enamel SolubilityBone RemodelingTooth ErosionCalcium Signaling