title: Postdebridement retention of endodontic reagents: a quantitative measurement with radioactive isotope.
abstract: Forty freshly extracted human teeth were biomechanically prepared for endodontic obturation using a radioisotopically labeled EDTA-urea peroxide-Carbowax compound. The amount of radiolabeled mixture remaining in the canals after through cleansing was about 3.8% of that originally applied. The amount of residue did not decrease with reinstrumentation and irrigation.
authors.affiliation: Department of Endodontics, Fort Benning, Ga., USA.
authors.forename: T
authors.initials: T
authors.lastname: Zurbriggen
authors.forename: C E
authors.initials: CE
authors.lastname: del Rio
authors.forename: J M
authors.initials: JM
authors.lastname: Brady
mesh_terms: D000077463:Carbamide Peroxide; D002250:Carbon Radioisotopes; D004338:Drug Combinations; D004350:Drug Residues / Q000032:analysis; D004492:Edetic Acid / Q000032:analysis; D006801:Humans; D010545:Peroxides / Q000032:analysis; D011092:Polyethylene Glycols / Q000032:analysis; D012388:Root Canal Irrigants / Q000032:analysis*; D014508:Urea / Q000031:analogs & derivatives / Q000032:analysis
chemical_list: D002250:Carbon Radioisotopes; D004338:Drug Combinations; D010545:Peroxides; D012388:Root Canal Irrigants; D000077463:Carbamide Peroxide; D011092:Polyethylene Glycols; D014508:Urea; D004492:Edetic Acid