Table 1.

Minimum inhibitory concentration (MIC, µg/mL) and minimum bactericidal concentration (MBC, µg/mL) in µg/mL against buccal bacteria strains.

Bacterial Strains	Hatc-Me		Hatc-Ph		[Co(atc-Me)2]+		[Co(atc-Ph)2]+		CoCl2·6H2O		CHD *
	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC	MIC	MBC
Streptococcus mutans (ATCC 251755)	12.5	12.5	100	100	400	400	0.78	0.78	100	100	0.46	0.46
Streptococcus mitis (ATCC 49456)	12.5	12.5	100	100	400	400	1.56	1.56	100	100	1.84	1.84
Streptococcus sanguinis (ATCC 10556)	6.25	6.25	100	100	400	400	0.39	0.39	100	100	0.92	0.92
Streptococcus sobrinus (ATCC 33478)	25	25	400	400	400	400	12.5	25	>400	>400	0.46	0.46
Lactobacillus paracasei (ATCC 11578)	50	50	400	400	400	400	0.78	0.78	>400	>400	0.92	0.92
Streptococcus salivarius (ATCC 25975)	25	25	100	100	400	400	3.12	3.12	100	100	0.92	0.92
Enterococcus faecalis (ATCC 4082)	>400	>400	>400	>400	400	400	6.25	6.25	>400	>400	3.68	3.68

* CHD: Chlorhexidine, positive control.