Taking 200 mg Vitamin C Three Times per Day Improved Extraction Socket Wound Healing Parameters: A Randomized Clinical Trial

Table 2

% reduction in mean wound size between the 2 extraction sites in the P/1,500 group (placebo vs. 1,500 mg vitamin C/d).

	% reduction of the extraction wound at the placebo side	% reduction of the extraction wound at the 1,500 mg vitamin C/d side	value^a
Immediate and 7 days
Bucco-lingual	52.2	47.5	0.233
Mesio-distal	37.0	36.5	0.953
Depth	47.1	60.2	0.066
Immediate and 21 days
Bucco-lingual	59.2	58.4	0.575
Mesio-distal	49.4	48.9	0.674
Depth	82.3	88.1	0.069
7 days and 21 days
Bucco-lingual	12.6	20.0	0.225
Mesio-distal	16.6	16.8	0.917
Depth	66.7	67.2	0.953

SD, standard deviation. ^a value, Wilcoxon signed-rank test. .