Table 3.

Mean ± standard deviation values of surface microhardness (VHN) in different remineralizing groups

Groups		SMH0	SMH1	SMH2
Peptide	P/I	281.29 Aa ±5.33	76.43 Cb ±4.41	240.04 Bb ±2.43
	P/II	285.23 Aa ±8.13	76.59 Cb ±3.19	268.81 Ba ±6.52
	P/III	268.88 Aa ±14.07	76.48 Cb ±3.22	150.89 Bc ±5.18
	P/AS	277.54 Aa ±15.22	76.67 Cb ±3.97	116.81 Be ±5.38
Non-Peptide	NP/I	282.98 Aa ±10.54	77.28 Cb ±2.68	103.09 Bf ±3.61
	NP/II	275.78 Aa ±15.28	77.01 Cb ±3.37	132.54 Bd ±6.24
	NP/III	271.78 Aa ±12.06	75.10 Cb ±2.78	92.85 Bg ±2.73
	NP/AS	278.39 Aa ±15.62	76.46 Cb ±3.30	81.80 Bh ±3.00

Different uppercase and lowercase superscript letters indicate significant difference (P<0.05) among the same raw and column, respectively