Influence of the Culture Medium in Dose-Response Effect of the Chlorhexidine on Streptococcus mutans Biofilms

Table 3

% means and standard deviations of CFU/mg dry weight in the biofilms grown according to the treatments.

Groups	CFU/dry weight
	MH	MHS	UTYEB
Baseline 48 h	5.50E + 07 (2.70E + 07)	5.47E + 07 (6.82E + 06)	1.63E + 07 (5.36E + 06)
Baseline 120 h	4.04E + 07 (8.72E + 06)	4.82E + 07 (3.76E + 07)	3.24E + 07 (1.76E + 07)
CHX 0.0001%	3.51E + 07 (9.75E + 06)	4.84E + 07 (2.72E + 07)	2.26E + 07 (8.37E + 06)
CHX 0.001%	4.52E + 06 (7.75E + 05)	4.28E + 06 (1.74E + 06)	1.98E + 07 (6.18E + 06)
CHX 0.012%	7.94E + 04 (1.07E + 04)	8.65E + 05 (2.29E + 05)	1.07E + 07 (2.79E + 06)
CHX 0.12%	1.03E + 03 (7.76E + 02)	1.02E + 03 (7.59E + 02)	1.20E + 03 (2.23E + 03)

Means within lines followed by distinct capital letters and those in columns followed by lower case letters differ statistically by Tukey test ( < 0.05).