Table 2.
Color Change Value (Mean ± Standard Deviation) at T0, T1, T6, and T12 of the Two Treatments, Along With P Values
| Group |
Time |
P Value |
||||||
| T0 |
T1 |
T6 |
T12 |
T0 vs T1 |
T1 vs T6 |
T1 vs T12 |
T6 vs T12 |
|
| Infiltration | 6.57 ± 2.48 | 2.21 ± 0.99 | 2.20 ± 0.82 | 2.03 ± 0.82 | <.0001 | .9285 | .1704 | .1249 |
| Microabrasion | 5.62 ± 2.04 | 2.66 ± 1.02 | 2.26 ± 0.93 | 2.08 ± 1.06 | <.0001 | .0003 | <.0001 | .0996 |
| P value | .1291 | .1034 | .7941 | .8470 | ||||
T0: before treatment; T1: 1 week after treatment; T6: 6 months after treatment; T12: 12 months after treatment.