clear aligners are rapidly growing sector of orthodontic treatment. Increased esthetic perception and increased demand for orthodontic care from adults have contributed to demand for a more esthetic technique for orthodontic treatment. For diagnosis, therapeutic preparation, and designing the nal occlusal result, clear aligners use digital technology. Clear aligners allow the biomechanics to be optimized by staging tooth movements in a particular sequence in the software program. The rate of tooth movement can also be modied according to the bone physiology of the individual by adjusting the scheduled number of days for aligner adjustments, depending on the individual's bone physiology