Ziaei M, Bajoghli F, Sabouhi M, Jowkar M, Nadian F, Manshaei F.
Evaluating the Marginal and Internal Discrepancy of Nickel–Chrome Copings Made on Fixed Partial Denture Implants with Conventional and 3D Printing Techniques. 
J Contemp Dent Pract
2023;
24
(11):826-833.