Shaping ability of Ni-Ti Rotary files in combination with GT Rotary Ni-Ti file

  • Shin, D.R. (Department of Conservative Dentistry, Kyung-Hee Univ.) ;
  • Park, S.J. (Department of Conservative Dentistry, Kyung-Hee Univ.) ;
  • Choi, G.W. (Department of Conservative Dentistry, Kyung-Hee Univ.)
  • Published : 2001.11.01

Abstract

The objective of this study was to compare the apical shaping ability of the ProFile .04 taper, Lightspeed and HERO 642 rotary instruments and to assess the combined effect of GT Rotary files to Lightspeed and HERO 642 instruments. Forty-eight resin simulated root canal blocks divided into 4 groups with 12 canals. Forty-eight blocks were prepared by one operator with GT Rotary files using a high torque handpiece at 300 rpm. Thirty-six blocks in the three experimental groups were prepared with ProFile 04 taper file, Lightspeed file, HERO 642 file.(omitted)

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