Khalilak, Z., Fallahdoost, A., Dadresanfar, B. and Rezvani, G. 2009. Comparison of Extracted Teeth and Simulated Resin Blocks on Apical Canal Transportation. Iranian Endodontic Journal. 3, 4 (Apr. 2009), 109–112. DOI:https://doi.org/10.22037/iej.v3i4.936.