Saygili, G. et al. 2017. In Vitro Cytotoxicity of GuttaFlow Bioseal, GuttaFlow 2, AH-Plus and MTA Fillapex. Iranian Endodontic Journal. 12, 3 (Jul. 2017), 354–359. DOI:https://doi.org/10.22037/iej.v12i3.15415.