Table 4.
Comparison of soft tissue changes between mini-implant and conventional anchorage group.
| Study | Naso-labial angle (°) | Angle of convexity (°) | Ls to E line (mm) | Li to E line (mm) | ||||
|---|---|---|---|---|---|---|---|---|
| Mini-implant group | Conventional anchorage group | Mini-implant group | Conventional anchorage group | Mini-implant group | Conventional anchorage group | Mini-implant group | Conventional anchorage group | |
| Al-Sibaie et al.(22) | -9.08 | -5.93 | NR | NR | -2.98 | -2.47 | -2.50 | -1.42 |
| Benson et al.(23) | NR | NR | NR | NR | NR | NR | NR | NR |
| Feldmann et al.(24) | NR | NR | NR | NR | NR | NR | NR | NR |
| Liu et al.(25) | -6.94 | -5.94 | -1.82 | -1.26 | -4.71 | -3.38 | NR | NR |
| Ma et al.(26) | NR | NR | NR | NR | NR | NR | NR | NR |
| Upadhyay et al.(27) | -11.67 | -5 | -2.33 | -1.17 | -2.89 | -2.56 | -4.78 | -3.11 |