Moghadam, N., A. A. Abdollahi, H. Aghabalayi Fakhim, and Z. Borna. “In Vitro Sealing Properties of Calcium-Enriched Mixture and Mineral Trioxide Aggregate Orifice Barriers During Intra-Coronal Bleaching”. Iranian Endodontic Journal, vol. 12, no. 2, Mar. 2017, pp. 231-5, doi:10.22037/iej.v12i2.14359.