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Comparison of mean retentive force between bar and clip attachment system and locator attachment system in the anterior region
| Anterior region | Mean±SD | Mann-Whitney test | P |
|---|---|---|---|
| Group 1 | 30.68±6.80 | 1.000 | 0.043 |
| Group 2 | 21.02±3.12 |
SD: Standard deviation
