| Variation factors |
df |
SS |
MS |
F |
P |
| Resin |
4 |
63207.62 |
15801.90 |
927.98 |
<0.001* |
| Bleaching agent |
3 |
11.59 |
3.86 |
0.23 |
0.878 |
| Resin × bleaching agent |
12 |
323.24 |
26.94 |
1.58 |
0.100 |
| Between samples |
180 |
3065.10 |
17.03 |
|
|
| Period |
2 |
6830.67 |
3415.33 |
1390.49 |
<0.001* |
| Period × resin |
8 |
1231.81 |
153.98 |
62.69 |
<0.001* |
| Period × bleaching agent |
6 |
31.47 |
5.24 |
2.14 |
0.048* |
| Period × resin × bleaching agent |
24 |
288.73 |
12.03 |
4.90 |
<0.001* |
| Intra samples |
360 |
884.23 |
2.46 |
|
|
*P<.05 indicates statistically significant difference. |
