Table 1.
The accuracy (trueness and precision) of four groups for full arch.
| Group | Root Mean Square (RMS) (µm) | |||
|---|---|---|---|---|
| Trueness | Precision | |||
| Mean ± SD | 95% CI | Mean ± SD | 95% CI | |
| CON | 27.9 ± 2.7a | 26.0–29.8 | 20.0 ± 3.1a | 19.1–21.0 |
| MIL | 94.0 ± 11.5b | 85.8–102.3 | 37.8 ± 7.0b | 35.7–39.9 |
| S3P | 85.2 ± 13.1b | 75.9–94.6 | 49.6 ± 12.1c | 45.9–53.2 |
| D3P | 105.5 ± 22.5b | 89.4–121.6 | 52.8 ± 17.5c | 47.6–58.1 |
| p | <0.001 | <0.001 | ||
Values followed by the same letter were not significantly different (p > 0.05/6 = 0.008). p-values are from a Kruskal–Wallis test. RMS, root mean square; SD, standard deviation; CI, confidence interval; CON, conventional gypsum model; MIL, milled gypsum model; S3P, SLA 3D printed photopolymer model; D3P, DLP 3D printed photopolymer model.