Lotfi, M.; Ghasemi, N.; Rahimi, S.; Bahari, M.; Vosoughhosseini, S.; Saghiri, M. A.; Zand, V. Effect of Smear Layer on the Push-Out Bond Strength of Two Endodontic Biomaterials to Radicular Dentin. Iran Endod J 2013, 9, 41-44.