Evaluation of the effects of an Iraqi phosphate bonded investment and two commercial types on the marginal fitness of porcelain- fused- to- metal copings . . MDJ [Internet]. 2024 Mar. 17 [cited 2025 May 12];2(2):183-9. Available from: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/1066