title: Microleakage of several acid-etch composite resin systems: a laboratory study.
mesh_terms: D000134:Acid Etching, Dental / Q000379:methods*; D003188:Composite Resins / Q000032:analysis*; D001840:Dental Bonding / Q000379:methods*; D003793:Dental Restoration, Permanent / Q000379:methods*; D005069:Evaluation Studies as Topic; D006801:Humans; D066298:In Vitro Techniques; D010539:Permeability; D014466:Ultraviolet Rays
chemical_list: D003188:Composite Resins