Table 4.
Descriptive statistics of modifications of the CieLab-System parameters (baseline: veneering material) of all tested material assemblies, regardless of the veneering thickness.
| VITA EasyShade | Lab-Values | VITA Mark II/A2 | VITA Enamic/A3.5 | LAVA Ultimate/B2 | IPS e.max CAD/B3 |
|---|---|---|---|---|---|
| PEEK | |||||
| CieLab-System | ∆L mean (SD) | −12.1 (5.2) | −11.2 (5.9) | −13.4 (6.6) | −10.3 (5.2) |
| ∆a mean (SD) | −0.8 (0.3) | −1.4 (0.1) | −2.3 (0.5) | −1.9 (0.1) | |
| ∆b mean (SD) | −7.4 (1.8) | −7.6 (1.6) | −11.7 (1.5) | −8.4 (2.1) | |
| ∆E mean (SD) | 14.3 (5.1) | 13.8 (5.8) | 18.4 (5.4) | 13.6 (5.3) | |
| ZrO2 | |||||
| CieLab-System | ∆L mean (SD) | −10.5 (4.8) | −10.1 (5.4) | −12.1 (6.1) | −9.2 (4.7) |
| ∆a mean (SD) | −1.1 (0.5) | −0.5 (0.3) | −1.1 (0.1) | −1.1 (0.1) | |
| ∆b mean (SD) | −5.4 (1.6) | −6.0 (0.9) | −8.4 (1.5) | −6.8 (1.5) | |
| ∆E mean (SD) | 12.1 (4.6) | 11.9 (5.0) | 15.0 (5.8) | 11.7 (4.6) | |
| CoCrMo | |||||
| CieLab-System | ∆L mean (SD) | −10.4 (4.7) | −9.8 (5.4) | −11.7 (6.1) | −8.9 (4.6) |
| ∆a mean (SD) | −0.3 (0.3) | −0.8 (0.1) | −1.4 (0.1) | −1.3 (0.1) | |
| ∆b mean (SD) | −5.5 (1.6) | −5.9 (1.1) | −8.3 (1.8) | −6.7 (1.6) | |
| ∆E mean (SD) | 11.9 (4.5) | 11.6 (5.1) | 14.5 (6.0) | 11.3 (4.6) | |
| TiO2 | |||||
| CieLab-System | ∆L mean (SD) | −4.8 (2.3) | −4.5 (2.5) | −5.3 (2.9) | −4.1 (2.1) |
| ∆a mean (SD) | −0.5 (0.5) | −0.7 (0.4) | −1.6 (0.6) | −1.1 (0.5) | |
| ∆b mean (SD) | −4.2 (1.8) | −4.1 (1.6) | −5.3 (2.2) | −4.0 (1.6) | |
| ∆E mean (SD) | 6.5 (2.9) | 6.2 (2.9) | 7.7 (3.6) | 5.8 (2.7) | |