KUMAR, A., ANDRABI, S.M. -U.-N., TEWARI, R.K., MISHRA, S.K. and IFTEKHAR, H. 2012. An In Vitro SEM Study on the Effectiveness of Smear Layer Removal of Four Different Irrigations. Iranian Endodontic Journal. 7, 4 (Oct. 2012), 171–176. DOI:https://doi.org/10.22037/iej.v7i4.2802.