Table 3 Mean (SD) of ARI at T1 to T3
| Time point | Conventional brackets ARI | Precoated brackets ARI | P value |
|---|---|---|---|
| T1 (immediately after) | 1.97 (0.81) | 1.47 (0.90) | 0.027 |
| T2 (24 h after) | 1.73 (0.79) | 1.30 (0.84) | 0.043 |
| T3 (after thermocycling) | 1.67 (0.92) | 1.40 (0.93) | 0.270 |