Table 3. Mean percentage (Standard deviation) of microhardness data and results of Tukey test for dentin.

Treaments	Surface Microhardness						% SMHalt = (SMHT / SMHE) X 100
	B		E		T
Control	63.44	± 4.69	14.68	± 1.30	14.64	± 1.05	100.5	± 11.80	A
Arg/Ca/MFP	62.62	± 2.17	14.84	± 2.95	17.00	± 2.82	116.2	± 17.13	AB
Si/PO4/MFP	62.84	± 4.44	15.07	± 3.07	19.50	± 3.59	132.4	± 30.13	BC
Si/PO4/MFP/BS	63.85	± 4.06	14.3	± 1.12	22.88	± 4.59	161.1	± 35.18	C

Uppercase letters show differences within treatments