Table 2. Mean general precision and standard deviation (SD), in μm, for partially and totally edentulous maxilla, and p values testing the scanner by model interaction.
Scanner | Partially edentulous maxilla | Totally edentulous maxilla | p-value1 |
---|---|---|---|
Mean Precision ± SD (μm) | Mean Precision ± SD (μm) | ||
Trios® | 51.0 ± 18.5 † ‡ | 67.0 ± 32.2 † ‡ | 0.4 |
CS 3500® | 40.8 ± 6.4 § ¶ | 55.2 ± 10.4 § ¶ | 0.4 |
Zfx Intrascan® | 126.2 ± 21.2 † § ° | 112.4 ± 22.6 † § ° | 0.5 |
Planscan® | 219.8 ± 59.1 ‡ ¶ ° | 204.2 ± 22.7 ‡ ¶ ° | 0.4 |
The same symbol after SD indicates differences in trueness between scanner pairs (Tukey-adjustment for multiple comparison). Minimum significant difference across scanners: 59.5 μm and 42.2 μm for partially and totally edentulous maxilla models, respectively.
1 p-value testing of the interaction between scanner and model type (partially vs totally edentulous maxilla): a p-value > 0.05 indicates no difference in scanner precision according to model type.