Table 1 B*L*, a* and b* values of specimens with different light radiation intensity results devided into each thickness pre- and post-aging.

0.50

/

92.50 ± 0.35

0.08 ± 0.12

12.34 ± 0.18

12.34 ± 0.16

1.56 ± 0.00

92.0 ± 0.17

0.10 ± 0.15

13.27 ± 0.16

13.00 ± 0.20

1.55 ± 0.00

700

89.12 ± 1.11

–0.59 ± 0.35

13.97 ± 1.81

13.98 ± 1.67

−1.51 ± 0.01

88.84 ± 1.23

–0.48 ± 0.11

17.60 ± 1.74

17.61 ± 1.62

−1.53 ± 0.01

900

89.73 ± 1.02

–0.52 ± 0.05

11.96 ± 1.04

11.97 ± 0.96

−1.51 ±

0.01

89.25 ± 1.07

–0.61 ± 0.09

13.82 ± 1.29

13.83 ± 1.19

−1.51 ± 0.02

1100

90.08 ± 2.22

–0.45 ± 0.08

11.41 ± 0.58

11.69 ± 0.86

−1.52 ± 0.01

89.74 ± 2.16

–0.37 ± 0.32

13.34 ± 1.65

13.03 ± 1.27

−1.52 ± 0.02

1.00

/

89.99 ± 0.25

1.09 ± 0.23

18.91 ± 1.00

18.48 ± 0.92

1.51 ± 0.01

89.61 ± 0.38

1.17 ± 0.14

19.90 ± 0.61

19.94 ± 0.56

1.50 ± 0.00

700

90.09 ± 0.86

0.72 ± 0.84

19.20 ± 0.76

19.21 ± 0.71

1.50 ± 0.00

89.20 ± 1.16

1.10 ± 0.32

20.55 ± 0.96

20.58 ± 0.91

1.51 ± 0.01

900

90.96 ± 0.66

0.75 ± 0.13

18.46 ± 054

18.48 ± 0.50

1.52 ± 0.01

90.37 ± 0.89

0.89 ± 0.24

20.10 ± 0.64

20.12 ± 0.60

1.52 ± 0.01

1100

91.21 ± 0.38

0.63 ± 0.05

18.21 ± 0.30

18.22 ± 0.28

1.53 ± 0.00

90.65 ± 0.45

0.81 ± 0.29

19.65 ± 0.83

19.66 ± 0.78

1.52 ± 0.01