A Comparative Evaluation Of Retention Of Implant Supported Crown Obtained By Laser Metal Sintering Technique Fabricated On Gypsum Abutment And Epoxy Resin Abutment Dies. Journal of Pharmaceutical Negative Results [Internet]. 2022 Apr. 1 [cited 2026 Jun. 3];:2417-22. Available from: https://www.pnrjournal.com/index.php/home/article/view/9976