Comparative evaluation of rotary ProTaper, Profile, and conventional stepback technique on reduction in Enterococcus faecalis colony-forming units and vertical root fracture resistance of root canals.

@article{Singla2010ComparativeEO,
  title={Comparative evaluation of rotary ProTaper, Profile, and conventional stepback technique on reduction in Enterococcus faecalis colony-forming units and vertical root fracture resistance of root canals.},
  author={Mamta Singla and Vivek K. Aggarwal and Ajay Logani and Naseem Munawar Shah},
  journal={Oral surgery, oral medicine, oral pathology, oral radiology, and endodontics},
  year={2010},
  volume={109 3},
  pages={
          e105-10
        }
}
OBJECTIVE The purpose of this in vitro study was to evaluate the effect of various root canal instrumentation techniques with different instrument tapers on cleaning efficacy and resultant vertical root fracture (VRF) strength of the roots. STUDY DESIGN Fifty human mandibular first premolar roots were enlarged to ISO size 20, inoculated with Enterococcus faecalis [ATCC2912] for 72 hours and divided into 5 groups: group I: prepared with .02 taper hand instruments ISO size 40; group II: Profile… CONTINUE READING

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