Ali DAA-A, Sabea DNR. Comparison of marginal adaptation, internal fitness and microleakage of Zolid, Zirconia and Empress 2 all-ceramic crown materials (An in vitro study). MDJ [Internet]. 2018 Feb. 26 [cited 2024 Apr. 26];10(2):184-92. Available from: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/216