Abstract
The orthodontic space closure is one of the most important and long phases of orthodontic treatment. In this sense, numerous mechanics and/or alloys may be used for this procedure. The mechanics without friction with T-loop springs has been widely studied in association with the TMA alloy (Molibdenium Titanium Alloy), whereas, the Nickel-Titanium alloy (NiTi) still needs studies. NiTi pro…