Aahed Alhamamy, Yaman, and Ahmed Asim Al-Ali. 2023. “The Comparison of Retention Between Overdenture Copings Manufactured by DMLS, CAD and Conventional Casting Techniques”. Al-Rafidain Dental Journal 23 (1):180-86. https://doi.org/10.33899/rdenj.2021.130871.1120.