Fig. 1.
Fig. 2.
Fig. 3.
Fig. 4.
Fig. 5.
The pH value at each time point_
| Time points | Number | pH value of aligner (mean ±S.D.) |
|---|---|---|
| Initial | 8 | 7.72 ± 0.319 |
| Group A-T0 | 8 | 7.72 ± 0.319 |
| Group A-T4 | 8 | 7.62 ± 0.171 |
| Group A-T8 | 8 | 7.53 ± 0.193 |
| Group A-T12 | 8 | 7.43 ± 0.261 |
| Group A-T24 | 8 | 7.42 ± 0.241 |
| Group B-T0 | 8 | 6.93 ± 0.260A |
| Group B-T4 | 8 | 7.43 ± 0.301 |
| Group B-T8 | 8 | 7.45 ± 0.329 |
| Group B-T12 | 8 | 7.23 ± 0.325A |
| Group B-T24 | 8 | 7.38 ± 0.162 |
| Group C-T0 | 8 | 6.83 ± 0.227A |
| Group C-T4 | 8 | 7.46 ± 0.107 |
| Group C-T8 | 8 | 7.47 ± 0.105 |
| Group C-T12 | 8 | 7.37 ± 0.191AB |
| Group C-T24 | 8 | 7.38 ± 0.187 |