Postdebridement retention of endodontic reagents: a quantitative measurement with radioactive isotope.
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.
Zurbriggen
T
T
Department of Endodontics, Fort Benning, Ga., USA.
del Rio
C E
CE
Brady
J M
JM
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
D002250:Carbon Radioisotopes; D004338:Drug Combinations; D010545:Peroxides; D012388:Root Canal Irrigants; D000077463:Carbamide Peroxide; D011092:Polyethylene Glycols; D014508:Urea; D004492:Edetic Acid