Short-Term Efficacy of Pudilan Keyanning Toothpaste in Treatment of Minor Recurrent Aphthous Ulcers

Table 3

Comparison of the ulcerous area in the PKT and control groups.

Time of measurement	Group		Mean	Std	95% CI	Wilcoxon value
Day 3	Study	40	6.68	6.55	4.65–8.71	0.9885
	Control	40	8.67	9.48	5.73–11.60
Day 6	Study	40	1.98	4.76	0.50–3.45	0.0108
	Control	40	4.91	8.69	2.22–7.61