Zevallos-Quiroz, C. A., Perez, I. E., & Garcia-Rupaya, C. R. (2019). Efficacy of Controlled Memory and Shape Memory Nickel Titanium Instruments in Removing Filling Material from Severely Curved Root Canals: An Ex Vivo Study. Iranian Endodontic Journal, 14(2), 115–121. https://doi.org/10.22037/iej.v14i2.23644