Table 3.
Descriptive statistics of internal and marginal discrepancies (μm) among studied groups
| Internal discrepancy | Bias | Std. Error | 95% Confidence Interval | |||
| Lower | Upper | |||||
| Vita Enamic | N | 10 | ||||
| Mean | 83.1500 | -.0371 | 1.6620 | 80.1282 | 86.7000 | |
| Std. Deviation | 5.75447 | -.58330 | 1.63998 | 2.21020 | 8.03690 | |
| Nacera | N | 10 | ||||
| Mean | 69.2750 | .0059 | 1.0570 | 67.2013 | 71.3750 | |
| Std. Deviation | 3.55209 | -.23894 | .60208 | 2.04549 | 4.33842 | |
| Zirconia | N | 10 | ||||
| Mean | 100.3000 | .0758 | 1.1965 | 98.1256 | 102.8744 | |
| Std. Deviation | 3.97876 | -.22735 | .62354 | 2.36117 | 4.89645 | |
| PEKK | N | 10 | ||||
| Mean | 80.5625 | -.0058 | 1.0826 | 78.3125 | 82.5625 | |
| Std. Deviation | 3.63779 | -.20774 | .62834 | 1.98191 | 4.55598 | |
| Marginal discrepancy | Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean | ||
| N | Lower Bound | Upper Bound | ||||
| Vita Enamic | 10 | 86.5500 | 14.09777 | 4.45811 | 76.4651 | 96.6349 |
| Nacera | 10 | 82.3750 | 5.84671 | 1.84889 | 78.1925 | 86.5575 |
| Zirconia | 10 | 102.6500 | 4.00729 | 1.26721 | 99.7834 | 105.5166 |
| PEKK | 10 | 78.4750 | 5.15651 | 1.63063 | 74.7863 | 82.1637 |