Table 1. Summary and statistical comparisons for all in vitro assays (mean ± SD).

						Bacterial counts (biofilm)	Surface Hardness
		Fluoride Release (mg F-/mL)				Log (UFC/mL)	(N)
	Day 1	Day 3	Day 7	Day 10	Day 15
FLLC	11±0.45	1.8±0.078	1.1±0.06	1.1±0.06	1.2±0.07	8.06±0.89a	24.97±2.89
FLLC + 1.5% DOX	10.2±0.38	1.7±0.08	1.1±0.03	1.3±0.08	1.3±0.04	7.08±0.47b	25.16±1.16
FLLC + 3% DOX	9.9±0.55	1.6±0.11	1±0.05	1.2±0.11	1.2±0.07	5.97±0.55c	23.25±1.93
FLLC + 4.5% DOX	9.9±0.41	1.6±0.03	1±0.03	1.1±0.1	1.2±0.04	6.08±0.80c	23.15±3.33

^*Different lower case letters in the columns show statistical difference among the groups of materials for bacterial counts, according to ANOVA and Tukey tests (p<0.05). There was no statistical difference among the groups of materials, considering fluoride release and surface hardness, according to ANOVA and Tukey tests (p>0.05).