Table 2.

Kruskal–Wallis ANOVA test

Kruskal–Wallis test
Zone of inhibition
		Mean	SD	Chi-square	df	p
Group I normal saline	J0	0.000	0.000	46.634	4	<0.001
Group II chlorhexidine	J0	15.850	0.337
Group III neem extract	J0	14.950	0.437
Group IV katha extract	J0	13.850	0.668
Group V cinnamon extract	J0	8.550	0.550