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Absolute inter-surface distances of the palatal area of both the conventional impression and the IOS of observer 1 and observer 2
| Absolute average distance (SD) | Absolute 90th percentile distance (SD) | |
|---|---|---|
| IOS observer 1 and plaster cast (mm) | 0.12 (0.02) | 0.23 (0.05) |
| IOS observer 2 and plaster cast (mm) | 0.14 (0.03) | 0.28 (0.07) |
| IOS observer 1 and IOS observer 2 (mm) | 0.08 (0.03) | 0.16 (0.07) |
