Table 3.
% reduction in mean wound size between the 2 extraction sites in the 600/1,500 group (600 mg vitamin C/d vs. 1,500 mg vitamin C/d).
| Mean difference | % reduction of the extraction wound at the 600 mg vitamin C/d side | % reduction of the extraction wound at the 1,500 mg vitamin C/d side | P valuea |
|---|---|---|---|
| Immediate and 7 days | |||
| Bucco-lingual | 48.2 | 42.3 | 0.767 |
| Mesio-distal | 45.0 | 44.6 | 0.953 |
| Depth | 69.4 | 70.0 | 0.753 |
|
| |||
| Immediate and 21 days | |||
| Bucco-lingual | 58.1 | 56.4 | 0.953 |
| Mesio-distal | 52.7 | 53.0 | 0.674 |
| Depth | 86.6 | 83.0 | 0.237 |
|
| |||
| 7 days and 21 days | |||
| Bucco-lingual | 20.2 | 22.0 | 0.674 |
| Mesio-distal | 14.1 | 13.8 | 1.000 |
| Depth | 53.0 | 41.1 | 0.160 |
SD, standard deviation. aP value, Wilcoxon signed-rank test. ∗P < 0.05.