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Mean first premolar width.
| Group I | Group II | |
|---|---|---|
| Mean premolar width (in mm) | ||
| Maxilla | 7.12 ± 0.87 | 7.00 ± 0.50 |
| Mandible | 7.00 ± 0.48 | 7.00 ± 0.49 |
| Mean treatment duration (months) | ||
| Females | 21.62 ± 1.80 | 21.07 ± 1.81 |
| Males | 21.92 ± 1.24 | 21.25 ± 1.48 |
| Mean anchor loss (%) | ||
| Maxilla | 28.08 | 2.86 |
| Mandible | 30.00 | 2.86 |
