Samiei, M., Torab, A., Hosseini, O., Abbasi, T., Abdollahi, A. A. and Divband, B. (2018) “Antibacterial Effect of Two Nano Zinc Oxide Gel Preparations Compared to Calcium Hydroxide and Chlorhexidine Mixture”, Iranian Endodontic Journal, 13(3), pp. 305–311. doi: 10.22037/iej.v13i3.19866.