Skip to main content

Table 3 Precision (mean ± SD), in μm, for partially and fully edentulous maxilla, and p values testing the scanner by model interaction

From: Accuracy of four intraoral scanners in oral implantology: a comparative in vitro study

Scanner

Partially edentulous maxilla

Fully edentulous maxilla

p-value1

Mean precision (± SD)

Mean precision (± SD)

CS 3600®

24.8 (±4.6)

65.5 (±16.7)

0.01

Trios 3®

24.5 (±3.7)

31.5 (±9.8)

0.3

Cerec Omnicam®

26.3 (±1.5)

57.2 (±9.1)

0.006

True Definition®

19.5 (±3.1)

75.3 (±43.8)

0.08

  1. N = 5 scans for each scanner and model type
  2. The same symbol after SD indicates differences in precision between scanner pairs (Tukey adjustment for multiple comparison). Minimum signicant difference across scanners: 7.2 μm and 51.2 μm for partially and fully edentulous maxilla models, respectively
  3. 1 p-value testing of the interaction between scanner and model type (partially vs fully edentulous maxilla) from t-tests taking into account the heterogeneity of variances (Satterthwaite method). A p-value > 0.05 indicates no difference in scanner precision according to model type