Evaluation of the clinical efficacy of green tea extract gel as local drug delivery for periodontitis

Table 2 Inter-group comparison of baseline value in variables used among green tea and ornidazole gel group

Baseline and 1 month	Inter-group comparison					t	df	P value
	Mean difference	SD	SEM	95%CI of the difference
				Lower	Upper
Plaque index	-0.14550	0.25591	0.05722	-0.26527	-0.02573	-2.543	19	0.020a
Probing pocket depth	0.03333	0.78041	0.10075	-0.16827	0.23493	0.331	59	0.742
Clinical attachment level	0.01667	0.83345	0.10760	-0.19864	0.23197	0.155	59	0.877

^aP < 0.05.