TABLE 4.
Pairwise comparisons of opalescence of different ceramic types with 0.5 and 1 mm thicknesses
| Thickness | (I) Ceramic type | (J) Ceramic type | Mean difference (I‐J) | SE | Sig. | 95% confidence interval for difference | |
|---|---|---|---|---|---|---|---|
| Lower bound | Upper bound | ||||||
| 0.5 mm | IPS e.max | Enamic | 1.955* | 0.224 | .000 | 1.349 | 2.561 |
| Feldspathic | 2.336* | 0.224 | .000 | 1.730 | 2.942 | ||
| Zirconia | 1.418* | 0.224 | .000 | 0.812 | 2.024 | ||
| IPS e.max | Feldspathic | 0.382 | 0.224 | .554 | −0.224 | 0.988 | |
| Zirconia | −0.536 | 0.224 | .114 | −1.142 | 0.070 | ||
| Feldspathic | Zirconia | −0.918* | 0.224 | .001 | −1.524 | −0.312 | |
| 1.0 mm | IPS e.max | Enamic | −0.534 | 0.224 | .117 | −1.140 | 0.072 |
| Feldspathic | 0.349 | 0.224 | .740 | −0.257 | 0.955 | ||
| Zirconia | −2.383* | 0.224 | .000 | −2.989 | −1.777 | ||
| Enamic | Feldspathic | 0.883* | 0.224 | .001 | 0.277 | 1.489 | |
| Zirconia | −1.849* | 0.224 | .000 | −2.455 | −1.243 | ||
| Feldspathic | Zirconia | −2.732* | 0.224 | .000 | −3.338 | −2.126 | |
*
Significant values <0.05.