Table 3.
Means ± standard deviations (SD) of volumetric losses of dental ceramic teeth and weight losses of dental composite resins after wear test.
| Group | Mean ± SD | |
|---|---|---|
| Ceramic Volumetric Loss (mm3 × 10−3) |
Composite Resin Weight Loss (mg) |
|
| ZMG | 0.004 ± 0.008 | 0.26 ± 0.15 |
| ZGD | 0.134 ± 0.134 | 0.54 ± 0.29 |
| ZEQ | 0.006 ± 0.006 | 0.82 ± 0.41 |
| ZFT | 0.013 ± 0.014 | 0.72 ± 0.16 |
| DMG | 0.008 ± 0.016 | 0.42 ± 0.40 |
| DGD | 30.00 ± 34.72 | 0.26 ± 0.15 |
| DEQ | 422.2 ± 248.2 | 0.94 ± 0.40 |
| DFT | 14.40 ± 4.278 | 0.44 ± 0.22 |
| LMG | 63.40 ± 84.28 | 0.78 ± 0.58 |
| LGD | 37.40 ± 27.84 | 0.36 ± 0.26 |
| LEQ | 445.8 ± 203.8 | 1.1 ± 0.53 |
| LFT | 31.61 ± 70.66 | 0.50 ± 0.25 |
| p | <0.001 | 0.006 |
p value result from Kruskal–Wallis test at the 5% significance level (α = 0.05). Multiple comparisons used Mann–Whitney U test with Bonferroni correction (α = 0.05/66 = 0.0008) and no statistical significance was observed between the groups. ZMG, zirconia opposing MI Gracefil; DMG, lithium disilicate opposing MI Gracefil; LMG, leucite opposing MI Gracefil; ZGD, zirconia opposing Gradia Direct P; DGD, lithium disilicate opposing Gradia Direct P; LGD, leucite opposing Gradia Direct P; ZEQ, zirconia opposing Estelite Σ Quick; DEQ, lithium disilicate opposing Estelite Σ Quick; LEQ, leucite opposing Estelite Σ Quick; ZFT, zirconia opposing Filtek supreme Ultra; DFT, lithium disilicate opposing Filtek Supreme Ultra; LFT, leucite opposing Filtek Supreme Ultra.