الفهرس | Only 14 pages are availabe for public view |
Abstract Aim: the aim of this study is to compare the rate of alignment per month of two different frequencies of archwire activation Methodology: 19 patients were divided into 2 groups. In the intervention group the archwire was changed every 6 weeks while in the control group the archwire was changed every 4 weeks. Impressions were taken monthly and digitized so that Little‘s irregularity index was measured on digital models. Results: the difference in the rate of alignment between both groups was statistically insignificant, while the inclination of upper incisors in both groups increased in a statistically significant manner Conclusion: both activation frequencies achieved alignment of the arch and relieved crowding with the near rate of alignment. |