Pedullà , E., Plotino , G., Grande , N.M., Pappalardo , A. and Rapisarda , E. 2022. Cyclic fatigue resistance of four nickel-titanium rotary instruments: a comparative study. Annali di stomatologia. 3, 2 (Aug. 2022), 59–63. DOI:https://doi.org/10.59987/ads/2012.2.59-63.