Thamer, Mohammed R, and Sami K Al-Joubori. 2015. “The Effect of Acidity Level on Ions Released and Corrosion of Metal Orthodontic Appliances at Different Time Intervals (An In Vitro Study) ”. Journal of Baghdad College of Dentistry 27 (4): 168-74. https://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/969.