Table 4.

Mean value of zones of inhibition (mm) of A, E, Z, F, and CHX 0.2% in Disc Agar Diffusion test

Bacteria	MBC/MFC concentrations				CHX 0.2%
	F	Z	E	A
C. albicans	14	13.66	11.66	10	20
S. mutans	20*	19.66*	18	13.33	20.66
S. mitis	16	14.66	16.66	13	21.33
S. salivarius	17.66	16.66	15.33	14	21
L. acidophilus	14.33	11.66	10.66	11.33	21.66
E. coli	16.33	15	14	12	21
S. aureus	15	14.33	11.66	10	20

All samples were tested three times in independent experiments

A: Arctium lappa, E: Echinacea purpurea, Z: Zateria multiflora, F: Formulation, CHX: Chlorhexidine

^*shows the insignificant difference (p > 0.05) with Chlorhexidine 0.2%