M.O. AL-Ashou, W. , A. Al-Sabawi , N. and M. Yahya , M. 2022. Comparison of push out bond strength of various root perforation repair materials. Mustansiria Dental Journal. 18, 2 (Dec. 2022), 346–358. DOI:https://doi.org/10.32828/mdj.v18i2.980.