Fig. (4) Graph comparing the torque expression capacities of active and passive self-ligating brackets. According to Badawi et al. [3], active self-ligating brackets express torque more effectively and efficiently than passive ones. Self-ligating brackets start to generate clinically effective momentum between 15° and 31°, compared to passive brackets that need higher torsion to generate the same momentum (between 22.5° and 34.5°).