“Evaluation of the Effects of an Iraqi Phosphate Bonded Investment and Two Commercial Types on the Marginal Fitness of Porcelain- Fused- To- Metal Copings . ”. Mustansiria Dental Journal, vol. 2, no. 2, Mar. 2024, pp. 183-9, https://doi.org/10.32828/mdj.v2i2.1066.