title: [The determination of fluoride in surface enamel with a method of enamel biopsy (author's transl)].
mesh_terms: D000134:Acid Etching, Dental; D001706:Biopsy; D002118:Calcium / Q000032:analysis; D003743:Dental Enamel / Q000032:analysis*; D005459:Fluorides / Q000032:analysis*; D006801:Humans; D066298:In Vitro Techniques; D008274:Magnesium / Q000032:analysis; D010758:Phosphorus / Q000032:analysis*
chemical_list: D010758:Phosphorus; D008274:Magnesium; D005459:Fluorides; D002118:Calcium