Effect of polydopamine and fluoride ion coating on dental enamel remineralization: an in vitro study

BMC Oral Health

Table 2 Surface microhardness values

Group	VHN_initial (Mean ± SD)	VHN_{Day 5} (Mean ± SD)	ΔVHN Mean
Con	335.10 ± 39.11	272.61 ± 56.58	-18.93
PD	337.71 ± 16.49	288.56 ± 38.33	-14.73
NaF	340.90 ± 22.53	303.07 ± 27.64	-11.07^*
Var	336.14 ± 15.90	310.93 ± 23.10	- 7.44^*
PD/F	330.34 ± 31.54	318.45 ± 32.13	- 3.61^*

^*Indicates a significant difference between changes in VHN compared to Con (P < 0.05)
\(\Delta \mathrm{VHN }=\frac{{VHN}_{Day 5}- {VHN}_{initial}}{{VHN}_{initial}}\times 100 (\mathrm{\%})\)

ISSN: 1472-6831