Effect from Rotational Speed on Torsional Resistance of
Effect from Rotational Speed on Torsional Resistance of the Nickeltitanium Instruments. Ha JH(1), Kwak SW(2), Kim SK(1), Sigurdsson A(3), Kim HC(4). Author information: (1)Department of Conservative Dentistry, School of Dentistry, Kyungpook National University, Daegu, Korea.