title: Density and x-ray diffraction studies of enamel surface reactions.
mesh_terms: D000818:Animals; D002130:Calcium Phosphates / Q000378:metabolism*; D002417:Cattle; D002499:Centrifugation, Density Gradient; D011232:Chemical Precipitation; D003720:Densitometry; D003743:Dental Enamel / Q000378:metabolism*; D005459:Fluorides; D007180:Incisor; D012964:Sodium; D014961:X-Ray Diffraction
chemical_list: D002130:Calcium Phosphates; D012964:Sodium; D005459:Fluorides