Table 1. Mean general trueness 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 Trueness ± SD (μm) | Mean Trueness ± SD (μm) | ||
Trios® | 71.2 ± 19.5 † | 71.6 ± 26.7 † | 0.9 |
CS 3500® | 47.8 ± 7.3 ‡ § | 63.2 ± 7.5 ‡ § | 0.4 |
Zfx Intrascan® | 117.0 ± 28.6 ‡ ¶ | 103.0 ± 26.9 ‡ ¶ | 0.5 |
Planscan® | 233.4 ± 62.6 † § ¶ | 253.4 ± 13.6 † § ¶ | 0.3 |
The same symbol after SD indicates differences in trueness between scanner pairs (Tukey-adjustment for multiple comparison). Minimum significant difference across scanners: 65.1 μm and 37.1 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 trueness according to model type.