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ANOVA test for all subject BF in T0 regions.
| ROIs | BF |
|---|---|
| ROI 1 | 224.04 ± 50.92cd |
| ROI 2 | 249.69 ± 56.03d |
| ROI 3 | 270.28 ± 49.68a |
| ROI 4 | 282.10 ± 44.93ab |
| P | <.001 |
compared with ROI 1, P < .05.
compared with ROI 2, P < .05.
compared with ROI 3, P < .05.
compared with ROI 4, P < .05.
BF: gingival blood flow.
Significant (P < .05).
BF unit: LSPU.
