International Endodontic Journal · 2014 · 84 citations · 14 references
Under the conditions of this study, PTN, IR and HF respected original canal curvature well and were safe to use.
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Roentgenographic Investigation of Frequency and Degree of Canal Curvatures in Human Permanent Teeth
Edgar Schäfer, C. Diez, W Hoppe et al. · Journal of Endodontics · 2002 · 255 citations