. 2019 May 7;10:987. doi: 10.3389/fmicb.2019.00987

Table 2.

Minimum inhibitory concentration against the biofilm and cell viability determined for the P. elliottii and P. tropicalis resins against cariogenic bacteria.

Bacterial strains	P. elliotti				P. tropicalis				CHD^a
	MICB₅₀^b		Cell viability^c		MICB₅₀		Cell viability		MICB₅₀		Cell viability
	μg/mL	%	Log₁₀ (CFU/mL)	IC₅₀ (μg/mL)	μg/mL	%	Log₁₀ (CFU/mL)	IC₅₀ (μg/mL)	μg/mL	%	Log₁₀ (CFU/mL)	IC₅₀ (μg/mL)
Streptococcus mutans (ATCC 25175)	100	50.78	5.95	1.95	6.25	50.90	5.94	2.53	0.23	85.33	0.20	1.37
Streptococcus mitis (ATCC 49456)	6.25	50.13	6.00	103.05	3.12	50.55	5.50	30.48	14.7	56.53	5.50	2.69
Streptococcus sanguinis (ATCC 10556)	200	53.59	4.00	6.67	^∗	^∗	^∗	^∗	1.84	76.79	7.01	2.63
Streptococcus sobrinus (ATCC 33478)	^∗	^∗	^∗	^∗	400	50.86	4.44	0.67	0.46	61.18	0.50	0.93
Streptococcus salivarius (ATCC 25975)	^∗	^∗	^∗	^∗	0.78	64.80	4.10	0.68	0.46	64.80	7.10	1.43
Lactobacillus casei (ATCC 11578)	^∗	^∗	^∗	^∗	3.12	50.72	5.50	5.45	0.92	58.37	1.19	1.06

^achlorhexidine; ^bMICB₅₀ obtained by optical density, results are given in concentrations (μg/mL) and in percentage (%) of biofilm inhibition; ^ccell viability obtained by count of microorganisms, results are given in Log₁₀ CFU/mL and IC₅₀ (calculated by graphpad prism 6); ^∗: not rated.