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| Outcome or subgroup title | No. of studies | No. of participants | Statistical method | Effect size |
|---|---|---|---|---|
| 8.1 Change in maxillary incisor crowding | 1 | 40 | Mean Difference (IV, Fixed, 95% CI) | 0.28 [‐0.33, 0.89] |
| 8.1.1 Change in maxillary incisor crowding | 1 | 40 | Mean Difference (IV, Fixed, 95% CI) | 0.28 [‐0.33, 0.89] |
