Defects in GT rotary instruments after use: an SEM study.

@article{Tripi2001DefectsIG,
  title={Defects in GT rotary instruments after use: an SEM study.},
  author={Teresa Roberta Tripi and Alfredo Damiano Bonaccorso and Valeria Tripi and Guglielmo G Condorelli and Ernesto Rapisarda},
  journal={Journal of endodontics},
  year={2001},
  volume={27 12},
  pages={
          782-5
        }
}
Used rotary nickel-titanium instruments require frequent replacement. This laboratory study evaluated defects of GT Rotary instruments before and after usage. The instruments were fixed into custom-made holders and photographed in an SEM at x 260 to x 12,000 magnification at preset points. Instrument sizes 20 with 1.0, 0.8, and 0.6 taper and instrument sizes 35 with 1.2 taper were used in 12 canals. The used instruments were cleaned and then reexamined in an SEM as before. The presence of 11… CONTINUE READING
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