Valverde Huaranga, Juan Carlos, Gerson Lara Baldeon, and Stefany Caballero-García. 2017. “Comment on ‘In Vitro Sealing Properties of Calcium-Enriched Mixture and Mineral Trioxide Aggregate Orifice Barriers During Intra-Coronal Bleaching’”. Iranian Endodontic Journal 12 (4):540-41. https://doi.org/10.22037/iej.v12i4.17797.