Nickel-titanium (NiTi) archwires are routinely used for initial leveling and alignment of enamel in orthodontic therapy. This analyze aimed to clinically Look at the extent of ache and tooth alignment in orthodontic therapy having a-NiTi versus Cu-NiTi archwires. The introduction of nickel–titanium (NiTi) alloys while in the late 1980s led to