Yavari, H.R., Samiei, M., Shahi, S., Aghazadeh, M., Jafari, F., Abdolrahimi, M. and Asgary, S. 2011. Microleakage comparison of four dental materials as intra-orifice barriers in endodontically treated teeth. Iranian Endodontic Journal. 7, 1 (Dec. 2011), 25–30. DOI:https://doi.org/10.22037/iej.v7i1.2727.