Busquim, Sandra Soares Kühne Cervical shaping in curved root canals: comparison of the efficiency of two endodontic instruments. [electronic resource] - Pesquisa odontologica brasileira = Brazilian oral research - 327-31 p. digital Publication Type: Comparative Study; Journal Article ISSN: 1517-7491 Standard No.: 10.1590/s1517-74912002000400008 doi Subjects--Topical Terms: Dental InstrumentsDental Pulp Cavity--pathologyDentin--pathologyDentition, PermanentHumansMolarRoot Canal Preparation--instrumentation