Coffae, K P The effect of serial preparation versus nonserial preparation on tissue removal in the root canals of extracted mandibular human molars. [electronic resource] - Journal of endodontics Jun 1975 - 211-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0099-2399 Standard No.: 10.1016/S0099-2399(75)80199-3 doi Subjects--Topical Terms: HumansMandibleMolarRoot Canal Preparation--methods