Table 4.
Results of internal fit measurement (pooled data for the three evaluation methods, COM = resin composite, ZIR = zirconium dioxide and NPA = non-precious alloy).
| Measurement Position | Internal Gap (mean (SD) [µm]) |
Internal Gap – Cement Space = Absolute Discrepancy (Mean (SD) [µm]) | ||||
|---|---|---|---|---|---|---|
| COM | ZIR | NPA | COM | ZIR | NPA | |
| marginal fit (n = 120) | 76.4 (0.5) | 78.1 (0.5) | 80.1 (0.6) | −3.6 (0.5) | −1.9 (0.5) | 0.1 (0.6) |
| axial fit (n = 120) | 97.8 (0.6) | 101.8 (0.5) | 114.3 (1.1) | 17.8 (0.6) | 21.8 (0.5) | 34.3 (1.1) |
| occlusal fit (n = 240) | 208.5 (1.5) | 277.6 (2.2) | 455.0 (5.5) | 128.5 (1.5) | 197.6 (2.2) | 375.0 (5.5) |