Anticaries Agent Based on Silver Nanoparticles and Fluoride: Characterization and Biological and Remineralizing Effects—An In Vitro Study

Table 2

Mean values (standard deviation) of the initial surface microhardness (SM_i), after pH-cycling microhardness (SM_pH), final surface microhardness (SM_f), percentage of surface remineralization (%SM), and variation of microhardness (ΔSM), n = 12.

Experimental group	SMi	SMpH	SMf	%SM	ΔSM
SDF	324.6 (32.7)^Aa	150.6 (27.8)^Ac	222.6 (34.8)^Ab	43.5 (18.4)^A	71.9 (28.7)^A
F	324.1 (38.7)^Aa	131.8 (33.8)^Ab	137.7 (31.8)^Bb	3.1 (4.1)^B	5.8 (7.8)^B
AgF	336.7 (47.6)^Aa	146.8 (31.1)^Ac	217.6 (44.1)^Ab	43.6 (26.3)^A	70.7 (26.9)^A
Ag	334.1 (30.3)^Aa	149.2 (27.8)^Ab	155.4 (31.8)^Bb	3.8 (8.2)^B	6.2 (12.9)^B

Means followed by different lowercase letters, in line, differ statistically by Tukey’s test; means followed by different uppercase letters, in column, differ statistically by Tukey’s test. The %SH and DSM were compared only between the experimental groups.