Table 1.
Bivariate analyses of the effect of ceramic thickness on the VITA_3D MASTER parameters in the study sample (n = 120).
| Thin ceramic discs 0.5 mm thickness (n = 60) | Thick ceramic discs 1.0 mm thickness (n = 60) | |||
|---|---|---|---|---|
| Baseline | After bonding | Baseline | After bonding | |
| Mean (SD) | Mean (SD) | Mean (SD) | Mean (SD) | |
| Real thickness (mm) | 0.43(0.06)a | 0.64(0.12)a | 0.95(0.01)a | 1.11(0.10)a |
| Cement thickness (mm) | 0.29(0.12)* | 0.16(0.12)* | ||
| 3D‐Master parameters | N(%) | N(%) | N(%) | N(%) |
| value | ||||
| 1 | 0(0%)a | 30(50%)a | 1(1.7%)a | 28(46.7%)a |
| 2 | 60(100%)a | 30(50%)a | 59(98.3%)a | 32(53.3%)a |
| 3 | 0(0%) | 0(0%) | 0(0%) | 0(0%) |
| 4 | 0(0%) | 0(0%) | 0(0%) | 0(0%) |
| 5 | 0(0%) | 0(0%) | 0(0%) | 0(0%) |
| Hue | ||||
| L | 1(1.7%) | 9(15%) | 0(0%)a | 9(15%)b |
| M | 59(98.3%) | 48(80%) | 60(100%)a | 51(85%)a |
| R | 0(0%) | 3(5%) | 0(0%) | 0(0%) |
| Chroma | ||||
| 1 | 59(98.3%)a | 43(71.7%)a | 60(100%)a | 47(78.3%)a |
| 1.5 | 0(0%)a | 8(13.3%)a | 0(0%)a | 9(15.0%)a |
| 2 | 0(0%)a | 4(6.7%)a | 0(0%)a | 4(6.7%)a |
| 2.5 | 1(1.7%)a | 2(3.3%)a | 0(0%) | 0(0%) |
| 3 | 0(0%)a | 3(5.0%)a | 0(0%) | 0(0%) |
*
Significant results after independent t‐test analyses (p‐value <0.05)
a
Significant differences within the standardized thickness subgroups after running the Wilcoxon Rank Tests to compare the baseline and the post‐bonding data distributions (p <0.01).