Nikzadjamnani, sakineh, Abbas Azari, Somayeh Niakan, and Seyedeh Fatemeh Namdar. 2017. “Fracture Resistance of Zirconia Restorations With a Modified Framework Design”. Frontiers in Dentistry 14 (6), 321-28. http://jdt.tums.ac.ir/index.php/jdt/article/view/1475.