. 2020 Feb 20;12(1):22–32. doi: 10.4047/jap.2020.12.1.22

Table 4. Means and standard deviations of µSBS data and post-hoc analysis for pairwise comparison.

Silane Application	Surface Treatment	CAD/CAM Indirect Restoratives
Silane Application	Surface Treatment	FHC	RNC	PICN	FC
No	Control	11.33 ± 1.52 ^{A, a}	12.22 ± 2.51 ^{A, a}	10.97 ± 1.56 ^{AB, a}	6.29 ± 1.25 ^{B, a}
	HF	15.71 ± 2.24 ^{A, ab}	18.46 ± 1.69 ^{AB, b}	23.22 ± 4.65 ^{B, b}	16.35 ± 4.16 ^{A, b}
	AlO	20.52 ± 2.24 ^{A, bc}	25.58 ± 2.40 ^{B, c}	20.66 ± 2.35 ^{A, b}	10.48 ± 1.08 ^{C, ac}
	TSC	24.24 ± 3.45 ^{A, c}	28.96 ± 1.79 ^{A, c}	24.87 ± 4.17 ^{A, b}	12.69 ± 1.37 ^{B, bc}
Yes	Control	19.70 ± 1.99 ^{X, x}	21.35 ± 2.41 ^{X, x}	23.05 ± 2.78 ^{X, x}	13.36 ± 1.10 ^{Y, x}
	HF	27.22 ± 2.14 ^{X, y}	27.96 ± 1.79 ^{XY, y}	32.29 ± 3.51 ^{Y, y}	28.31 ± 1.38 ^{XY, y}
	AlO	31.36 ± 3.15 ^{X, yz}	29.23 ± 1.78 ^{XY, yz}	30.62 ± 1.96 ^{X, y}	24.87 ± 1.58 ^{Y, y}
	TSC	32.87 ± 3.56 ^{X, z}	34.01 ± 2.33 ^{X, z}	32.34 ± 2.72 ^{X, y}	23.97 ± 3.15 ^{Y, y}

Means followed by similar capital letters are not significantly different (surface treatment comparison). Means followed by similar lowercase letters (comparison between material type) are not significantly different (a, b, c for with additional silane application; x, y, z for without additional silane application).