The Efficacy and Safety of a Herbal Toothpaste in Reducing Gingivitis: A Double-Blind, Randomized, Placebo-Controlled, Parallel Allocation Clinical Trial

Table 2

PI, GI, BI, and BOP% at follow-up.

Index	Time point	Group	Mean	P25	P50	P75	Std.	Mean efficiency	P value
Pi	4 weeks	Control	2.37	1.92	2.35	2.75	0.62	1.27%	0.411
		Test	2.40	1.97	2.45	2.70	0.48
	8 weeks	Control	2.27	1.91	2.35	2.71	0.60	4.85%	0.170
		Test	2.38	1.93	2.34	2.83	0.52
	12 weeks	Control	2.29	1.92	2.21	2.63	0.57	3.49%	0.232
		Test	2.37	2.04	2.42	2.73	0.48
GI	4 weeks	Control	1.12	1.03	1.10	1.16	0.12	3.57%	0.190
		Test	1.16	1.04	1.12	1.24	0.15
	8 weeks	Control	1.07	1.00	1.05	1.10	0.09	12.15%	0.487
		Test	1.06	1.00	1.06	1.11	0.16
	12 weeks	Control	1.12	1.04	1.10	1.19	0.10	-8.03%	<0.001
		Test	1.03	0.96	1.00	1.08	0.10
BI	4 weeks	Control	1.20	1.05	1.15	1.27	0.19	4.17%	0.309
		Test	1.25	1.07	1.18	1.36	0.25
	8 weeks	Control	1.10	1.01	1.08	1.15	0.13	-0.91%	0.414
		Test	1.09	1.00	1.08	1.15	0.11
	12 weeks	Control	1.18	1.06	1.15	1.28	0.15	-11.02%	<0.001
		Test	1.05	0.97	1.01	1.12	0.13
BOP%	4 weeks	Control	14.36	5.80	11.65	20.23	10.92	22.14%	0.199
		Test	17.54	7.44	12.66	24.01	14.46
	8 weeks	Control	9.55	4.32	7.14	12.79	8.03	-2.09%	0.409
		Test	9.35	3.72	8.33	12.50	6.71
	12 weeks	Control	15.61	8.48	14.88	21.40	8.76	-37.16%	<0.001
		Test	9.81	4.43	7.71	12.50	7.79

indicates statistical significance.
^aIndependent samples t test.
^bWilcoxon rank-sum test.
^cMean efficiency = (test - control)/control 100%.