title: Effects of 15 vs 60 second enamel acid conditioning on adhesion and morphology.
mesh_terms: D000134:Acid Etching, Dental; D003188:Composite Resins; D001840:Dental Bonding; D003743:Dental Enamel / Q000648:ultrastructure*; D006801:Humans; D008855:Microscopy, Electron, Scanning; D010756:Phosphoric Acids; D013314:Stress, Mechanical; D013997:Time Factors
chemical_list: D003188:Composite Resins; D010756:Phosphoric Acids; C030242:phosphoric acid