Antibacterial Effects of Natural Herbal Extracts on Streptococcus mutans: Can They Be Potential Additives in Dentifrices?

Table 2

Minimum inhibitory concentration of ciprofloxacin and chlorhexidine against Streptococcus mutans.

Ciprofloxacin concentration; (µg/ml)	% inhibition	Chlorhexidine concentration; (µg/ml)	% inhibition
0.00	0.00	0.00	0.00
0.25	48.91	4.00	87.50
0.5	79.28	8.00	88.27
1.0	81.00	16.00	91.24
2.0	88.30	32.00	94.79
4.0	88.05	64.00	95.05
8.0	94.49	128.00	96.64
16.00	92.65	256.00	97.71
0.00	81.00	0.00	88.27
MIC	0.5	MIC	<4