title: Letter: Acid etching studies: a danger.
mesh_terms: D000056:Accident Prevention; D001840:Dental Bonding; D003743:Dental Enamel / Q000187:drug effects; D005782:Gels; D010756:Phosphoric Acids / Q000008:administration & dosage / Q000494:pharmacology*; D010895:Pit and Fissure Sealants
chemical_list: D005782:Gels; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants