Hasan, Arshad, and Omer Shahid. “Esthetic Restorations, The Putty Matrix Technique”. Journal of the Dow University of Health Sciences (JDUHS) 7, no. 3 (December 28, 2013): 122–125. Accessed July 2, 2024. https://jduhs.com/index.php/jduhs/article/view/1542.