Table 1.
% reduction in mean wound size between the 2 extraction sites in the P/600 group (placebo vs. 600 mg vitamin C/d).
| % reduction of the extraction wound at the placebo side | % reduction of the extraction wound at the 600 mg vitamin C/d side | P valuea | |
|---|---|---|---|
| Immediate and 7 days | |||
| Bucco-lingual | 45.9 | 47.5 | 0.575 |
| Mesio-distal | 48.3 | 57.3 | 0.036∗ |
| Depth | 61.1 | 68.2 | 0.122 |
|
| |||
| Immediate and 21 days | |||
| Bucco-lingual | 54.8 | 58.9 | 0.445 |
| Mesio-distal | 54.6 | 60.2 | 0.262 |
| Depth | 83.3 | 86.2 | 0.398 |
|
| |||
| 7 days and 21 days | |||
| Bucco-lingual | 13.8 | 18.7 | 0.575 |
| Mesio-distal | 11.3 | 5.9 | 0.416 |
| Depth | 56.8 | 49.6 | 0.540 |
SD, standard deviation. aP value, Wilcoxon signed-rank test. ∗P < 0.05.