Preparation of severely curved simulated root canals using engine-driven rotary and conventional hand instruments


This in vitro study evaluated the efficacy and safety of six different nickel-titanium engine-driven instruments used with a torque-controlled engine device and nickel-titanium hand and stainless steel hand instruments in preparation of curved canals. A total of 80 curved (36°) simulated root canals were prepared. Images before and after were superimposed… (More)
DOI: 10.1007/PL00010680

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