Table 2.

Mean, SD, median, and min-max of surface microhardness (VHN) of the groups.* One-way ANOVA test (p<0.05). Different letters denote statistically significant differences.

	Mean (SD)	Median	Min - Max	p*
Intact root surface	65.22 (5.25) a	65.80	[56.70 - 73.80]
Demineralized root surface	37.87 (4.14) b	37.74	[28.39 - 43.64]	<0.001
Resin infiltrated root surface	54.91 (3.72) c	55.15	[49.30 -59.64]