Bonetti Filho, I Microscopic evaluation of three endodontic files pre- and postinstrumentation. [electronic resource] - Journal of endodontics Jul 1998 - 461-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0099-2399 Standard No.: 10.1016/s0099-2399(98)80046-0 doi Subjects--Topical Terms: AlloysAnalysis of VarianceDental InstrumentsEquipment FailureEvaluation Studies as TopicHumansRoot Canal Preparation--instrumentationStainless Steel