“Evaluation of Effect of Saliva pH Change on Release of Nickel and Chromium Ions from Orthodontic Wires (an In vitro study)”, مجلة الجامعة, vol. 1, no. 4, Jul. 2019, Accessed: Apr. 25, 2026. [Online]. Available: https://hama-univ.edu.sy/ojs/index.php/huj/article/view/82