Table 4. Shear bond strengths (SBSs) of the various groups (in MPa).

Ceramic	IEX		FIN		ICZ
Resin	VN	CE	VN	CE	VN	CE
Group 1 (hydrofluoric acid + silane)	25.16 ± 4.61	26.07 ± 8.94	25.20 ± 9.68	23.25 ± 6.50	18.23 ± 6.02	16.69 ± 5.25
Group 2 (silane alone, no heat treatment)	10.67 ± 3.55	5.91 ± 0.90	3.79 ± 2.50	7.13 ± 1.16	11.71 ± 3.54	10.49 ± 3.11
Group 3 (silane alone then dried with heat treatment at 60℃)	17.55 ± 4.81	6.27 ± 1.22	11.81 ± 5.00	10.66 ± 2.09	9.76 ± 4.17	10.75 ± 5.11
Group 4 (silane alone then dried with heat treatment at 100℃)	17.69 ± 3.08	10.78 ± 3.41	12.80 ± 5.65	10.62 ± 2.07	17.45 ± 6.11	13.26 ± 4.72