Table 2.
Descriptive statistics of the internal gap [µm] for the three evaluation methods (CV-SR, D-GOM and D-IOS), coping material (COM = resin composite, ZIR = zirconium dioxide and NPA = non-precious alloy) and measurement position (marginal, axial and occlusal fit).
| Evaluation Method | Coping Material | Measurement Position | Internal Gap [µm] | ||||
|---|---|---|---|---|---|---|---|
| Mean | Standard Deviation | Median | Confidence Interval | ||||
| Lower | Upper | ||||||
| CV-SR | COM | marginal fit | 75.8 | 9.9 | 77.0 | 74.0 | 77.6 |
| axial fit | 96.4 | 9.3 | 96.0 | 94.7 | 98.1 | ||
| occlusal fit | 204.9 | 39.5 | 206.0 | 199.9 | 209.9 | ||
| ZIR | marginal fit | 77.8 | 9.2 | 77.0 | 76.2 | 79.5 | |
| axial fit | 100.2 | 9.3 | 100.5 | 98.5 | 101.8 | ||
| occlusal fit | 273.9 | 59.9 | 280.0 | 266.3 | 281.5 | ||
| NPA | marginal fit | 79.8 | 12.6 | 79.0 | 77.5 | 82.1 | |
| axial fit | 112.5 | 21.1 | 106.0 | 108.7 | 116.3 | ||
| occlusal fit | 451.1 | 147.6 | 463.0 | 432.4 | 469.9 | ||
| D-GOM | COM | marginal fit | 76.6 | 9.5 | 77.0 | 74.9 | 78.4 |
| axial fit | 98.0 | 10.8 | 96.5 | 96.0 | 100.0 | ||
| occlusal fit | 208.2 | 38.3 | 211.0 | 203.3 | 213.0 | ||
| ZIR | marginal fit | 77.9 | 8.8 | 78.0 | 76.3 | 79.5 | |
| axial fit | 101.6 | 9.6 | 101.0 | 99.9 | 103.4 | ||
| occlusal fit | 277.3 | 59.0 | 280.0 | 269.8 | 284.8 | ||
| NPA | marginal fit | 80.1 | 11.7 | 80.5 | 78.0 | 82.2 | |
| axial fit | 113.9 | 20.6 | 107.0 | 110.2 | 117.6 | ||
| occlusal fit | 455.2 | 146.9 | 470.5 | 436.6 | 473.9 | ||
| D-IOS | COM | marginal fit | 76.7 | 10.1 | 80.0 | 74.8 | 78.5 |
| axial fit | 99.1 | 10.8 | 100.0 | 97.1 | 101.0 | ||
| occlusal fit | 212.4 | 39.5 | 210.0 | 207.4 | 217.4 | ||
| ZIR | marginal fit | 78.7 | 9.2 | 80.0 | 77.0 | 80.3 | |
| axial fit | 103.8 | 10.2 | 100.0 | 101.9 | 105.6 | ||
| occlusal fit | 281.5 | 59.5 | 290.0 | 274.0 | 289.1 | ||
| NPA | marginal fit | 80.4 | 12.3 | 80.0 | 78.2 | 82.6 | |
| axial fit | 116.4 | 20.6 | 110.0 | 112.7 | 120.1 | ||
| occlusal fit | 458.7 | 147.2 | 470.0 | 440.0 | 477.4 | ||