Torsional properties of the Canal Master instrument.
作者： Gary R. Massa , Jack I. Nicholls , Gerald W. Harrington
DOI: 10.1016/S0099-2399(06)81264-1
关键词:
摘要: The torsional properties of a new type endodontic hand instrument, the Canal Master, were compared with conventional machined K-type files. Sizes 20 through 50 tested in clockwise (CW) and counterclockwise (CCW) directions. Master instruments exhibited significantly less torque at yield failure both CW CCW Rotation was greater for There no significant difference either or amount rotation when comparing versus rotation. clinically visible evidence deformation prior to failure.
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