Background: Esthetic treatment is the options of patient seeking orthodontic treatment. Therefore this study was conducted to measure the concentration of Aluminum. Nickel. Chromium and Iron ions released from combination of monocrysralline brackets with different arch wires immersed in artificial saliva at different duration. https://safeersappliancers.shop/product-category/bosch-dia098e50b-serie-6-island-cooker-hood-90-cm-clear-glass-extractor/