Table 2.
Two-way ANOVA results of transmittance values, translucency parameter, and DC according to the ceramic type and thickness
| Source | Sum of squares | Degrees of freedom | Mean squares | F | P-value |
|---|---|---|---|---|---|
| (a) Dependent variable: translucency parameter | |||||
| Ceramic type (A) | 132.460 | 4 | 33.115 | 2912.072 | 0.000 |
| Ceramic thickness (B) | 3395.879 | 3 | 1131.960 | 99,542.097 | 0.000 |
| A × B | 62.629 | 12 | 5.219 | 458.955 | 0.000 |
| Error | 0.455 | 40 | 0.011 | 2912.072 | |
| Total | 9175.878 | 60 | |||
| (b) Dependent variable: transmittance value | |||||
| Ceramic type (A) | 259.659 | 4 | 64.915 | 1028.327 | 0.000 |
| Ceramic thickness (B) | 3447.743 | 3 | 1149.248 | 18205.426 | 0.000 |
| A × B | 55.804 | 12 | 4.650 | 73.667 | 0.000 |
| Error | 2.525 | 40 | 0.063 | ||
| Total | 12,476.918 | 60 | 64.915 | ||
| (c) Dependent variable: DC | |||||
| Ceramic type (A) | 154.874 | 4 | 38.719 | 7.932 | 0.000 |
| Ceramic thickness (B) | 2208.586 | 3 | 736.195 | 150.823 | 0.000 |
| A × B | 140.101 | 12 | 11.675 | 2.392 | 0.013 |
| Error | 292.871 | 60 | 4.881 | ||
| Total | 150,964.216 | 60 | |||