Table 2.

Mean trueness and its standard deviation (SD) in micrometers (μm) with single crown (SC), partial prosthesis (PP) and full-arch (FA), and p values testing the scanner by context interaction. N = 10 scans for each scanner and implant type

Scanner	Single Crown (SC)	Partial prosthesis (PP)	Full arch (FA)	p-value1
	Mean ± SD	Mean ± SD	Mean ± SD
Trios 3®	22.3 ± 0.5†	28.5 ± 0.5†,‡,•	46.3 ± 4.9†,‡,•	<  0.0001
CS 3600®	15.2 ± 0.8‡,#,§	23.0 ± 1.1^,§,#	44.9 ± 8.9^,§,#	<  0.0001
Emerald®	43.1 ± 11.5†,‡,•,^	49.3 ± 5.5†,^,°	66.3 ± 5.6†,^,°	<  0.0001
DWIO®	27.8 ± 3.2#,•	49.8 ± 5.0‡,§,*	92.1 ± 24.1‡,§,°,*	<  0.0001
Omnicam®	28.4 ± 4.5§,^	38.1 ± 8.8•,#,°,*	70.4 ± 11.9•,#,*	<  0.0001

The same symbol after SD indicates differences in trueness between scanner pairs (Tukey-adjustment for multiple comparison). Minimum significant difference across scanners: 7.3 μm, 6.6 μm, 16.8 μm for single crown (SC), partial prosthesis (PP) and full arch (FA), respectively. ¹p-value testing the interaction between scanner and context (SC vs. PP vs. FA) from non-parametric, Kruskall-Wallis test. A p-value > 0.05 indicates no difference in scanner trueness according to the context