Sadeghi, Shiva, and Haniyeh Haji Sadeghi. 2009. “Density and Apical Sealing Ability of Lateral Compaction Using Two Different Spreaders and Vertical Compaction Using BeeFill Device”. Iranian Endodontic Journal 4 (1):10-14. https://doi.org/10.22037/iej.v4i1.1131.