Table 2.

Log biofilm fluid fluoride concentration between-treatment (40 seconds vs. 120 seconds brushing time) comparison

Treatment	Parameter	Log biofilm fluid fluoride concentration of change from baseline (μg F/g)				ln AUC*	AUC†
		5 minutes	15 minutes	30 minutes	60 minutes
40 seconds versus 120 seconds	Difference (mean)	−0.0976	−0.1524	−0.1991	−0.1704	−0.23	0.79
	95% CI (lower, upper)	−0.42, 0.23	−0.39, 0.08	−0.45, 0.05	−0.43, 0.09	−0.44, −0.03	0.65, 0.97
	P-value	0.5460	0.1985	0.1197	0.1852	0.0279

^*Difference (Mean).

^†Ratio of geometric mean.

P-value <0.05 is significant and bold.