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Table 1 Root mean square error (RMSE) analysis of the original standard tesselation language (.stl) files and the scanned counterfeits after virtual alignments (n = 5)

From: Simultaneous, radiation-free registration of the dentoalveolar position and the face by combining 3D photography with a portable scanner and impression-taking

Participant

RMSE sphere geometry [mm]

RMSE cross geometry [mm]

1

0.23

0.33

2

0.28

0.34

3

0.23

0.35

4

0.24

0.35

5

0.24

0.40

Mean (range)

0.24 (0.23–0.28)

0.36 (0.33–0.40)

p-value

p < 0.008