Mehrvarzfar, P., Saghiri, M.A., Karamifar, K., Khalilak, Z. and Maalek, N. 2010. A Comparative Study Between Resilon and Gutta-Percha as a Secondary Root Canal Filling Materials: An In Vitro Study. Iranian Endodontic Journal. 5, 3 (Oct. 2010), 117–120. DOI:https://doi.org/10.22037/iej.v5i3.1832.