Materials & Methods: Study was conducted on 30 patients. Two groups were formed. 15 patients of both gender in each group. Patients selected were of moderate dental crowding. First group patients (group I) was treated with self-ligating pre-adjusted edgewise brackets (MBT 0.022) and second group (group II) with conventional pre-adjusted edgewise brackets (MBT 0.022).

Results: Among the 30 patients 17 females and 13 males were selected. In group I male female ratio was 7:8 and in group II it was 6:9. Irregularity index (mm) in maxilla at T0 in group I was 2.65 and in group II was 3.15, at T1 was 0.56 in group I and 1.04 in group II and at T2 was 0.0 in both groups. The difference was significant (P< 0.05). Irregularity index (mm) in mandible at T0 in group I was 3.62 and in group II was 4.76, at T1 was 1.18 in group I and 1.72 in group II and at T2 was 0.0 in both groups. The difference was significant (P< 0.05).

Conclusion: We found in our study that self-ligating pre-adjusted edgewise brackets were superior to conventional pre-adjusted edgewise brackets