Khademi, Abbasali, Masoud Saatchi, Mohammad Mehdi Shokouhi, and Badri Baghaei. 2015. “Scanning Electron Microscopic Evaluation of Residual Smear Layer Following Preparation of Curved Root Canals Using Hand Instrumentation or Two Engine-Driven Systems”. Iranian Endodontic Journal 10 (4):236-39. https://doi.org/10.22037/iej.v10i4.9111.