. 2018 Feb 12;10(1):32–42. doi: 10.4047/jap.2018.10.1.32

Table 2. Mean and standard deviation of the ΔE_SCE-SCI and R_a parameters in each test group. Different superscript letters indicate statistical difference inside the respective column (P < .05).

Tested Material	Shade	Material Thickness (mm)	Mean ΔE_SCE-SCI	±	SD	Mean R_a	±	SD
CS	A1-HT	2	3.26	±	0.07^a,b	0.014	±	0.002^b,c
		1.5	3.25	±	0.27^a,b	0.011	±	0.001^a
		1	3.03	±	0.68^a,b	0.017	±	0.005^c
		0.7	3.00	±	0.99^a,b	0.011	±	0.001^a
		0.5	2.63	±	0.64^a,b	0.011	±	0.0001^a
	A1-LT	2	3.59	±	0.12^a,b	0.012	±	0.001^a,b
		1.5	3.53	±	0.11^a,b	0.012	±	0.002^a,b
		1	3.70	±	0.23^b	0.011	±	0.0001^a,b
		0.7	3.53	±	0.16^a,b	0.011	±	0.0001^a
		0.5	3.36	±	0.27^a,b	0.011	±	0.0001^a
	A3-LT	2	2.86	±	0.16^a,b	0.011	±	0.002^a
		1.5	2.52	±	0.10^a,b	0.011	±	0.0001^a
		1	2.92	±	0.21^a,b	0.012	±	0.0001^a,b
		0.7	3.07	±	0.18^a,b	0.012	±	0.001^a,b
		0.5	2.99	±	0.57^a,b	0.010	±	0.0001^a
LU	A1-HT	2	2.95	±	0.06^a,b	0.010	±	0.0001^a
		1.5	2.46	±	0.34^a,b	0.010	±	0.001^a
		1	2.51	±	0.48^a,b	0.010	±	0.0001^a
		0.7	2.46	±	0.19^a,b	0.010	±	0.0001^a
		0.5	2.60	±	0.59^a,b	0.010	±	0.0001^a
	A1-LT	2	3.29	±	0.12^a,b	0.011	±	0.001^a,b
		1.5	3.19	±	0.25^a,b	0.012	±	0.001^a,b
		1	3.34	±	0.10^a,b	0.011	±	0.001^a
		0.7	3.61	±	0.15^a,b	0.011	±	0.001^a
		0.5	3.37	±	0.38^a,b	0.012	±	0.001^a,b
	A3-LT	2	2.61	±	0.20^a,b	0.012	±	0.001^a,b
		1.5	2.38	±	0.15^a,b	0.012	±	0.001^a,b
		1	2.56	±	0.26^a,b	0.011	±	0.001^a
		0.7	2.81	±	0.46^a,b	0.010	±	0.001^a
		0.5	2.79	±	0.12^a,b	0.010	±	0.0001^a
VE	1M1-HT	2	2.68	±	0.47^a,b	0.011	±	0.001^a,b
		1.5	2.38	±	1.33^a,b	0.011	±	0.001^a,b
		1	2.18	±	0.90^a	0.010	±	0.0001^a
		0.7	3.22	±	0.23^a,b	0.011	±	0.001^a,b
		0.5	2.27	±	0.93^a,b	0.012	±	0.001^a,b
	1M1-LT	2	3.55	±	0.35^a,b	0.012	±	0.001^a,b
		1.5	3.73	±	0.14^b	0.011	±	0.001^a
		1	3.51	±	0.35^a,b	0.011	±	0.001^a
		0.7	3.59	±	0.26^a,b	0.012	±	0.001^a,b
		0.5	3.63	±	0.70^a,b	0.012	±	0.001^a,b
	3M2-LT	2	2.93	±	0.43^a,b	0.012	±	0.001^a,b
		1.5	3.16	±	0.44^a,b	0.012	±	0.001^a,b
		1	3.17	±	0.41^a,b	0.011	±	0.001^a,b
		0.7	2.92	±	0.33^a,b	0.012	±	0.002^a,b
		0.5	2.73	±	0.07^a,b	0.011	±	0.001^a,b

Table 2. Mean and standard deviation of the ΔESCE-SCI and Ra parameters in each test group. Different superscript letters indicate statistical difference inside the respective column (P < .05).

Table 2. Mean and standard deviation of the ΔE_SCE-SCI and R_a parameters in each test group. Different superscript letters indicate statistical difference inside the respective column (P < .05).