Chohayeb, A A Microleakage comparison of apical seal of plastic versus metal Thermafil root canal obturators. [electronic resource] - Journal of endodontics Dec 1992 - 613-5 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0099-2399 Standard No.: 10.1016/S0099-2399(06)81332-4 doi Subjects--Topical Terms: Dental LeakageHumansMetalsPlasticsRoot Canal Obturation--instrumentation