Table 1 Examined parameters for surface and volume comparison and resulting average values and sums of the deviations.

From: 3D assessment of the nasolabial region in cleft models comparing an intraoral and a facial scanner to a validated baseline

Max distance

Maximum distance allowed for surface comparison on marked area

Mean deviation: 9.98 FS to reference; 9.97 IOS to reference. ∑: 99.84 FS to reference; 99.65 IOS to reference

Min distance

Minimum distance allowed for surface comparison on marked area

Mean deviation:  − 9.95 FS to reference;  − 9.80 IOS to reference. ∑:  − 99.47 FS to reference;  − 98.02 IOS to reference

Mean distance

Mean distance on marked surface area between “mesh” and “CAD”

Mean deviation:  − 0.07 FS to reference; 0.00 IOS to reference. ∑:  − 0.70 FS to reference;  − 0.02 IOS to reference

Mean absolute distance

Mean absolute distance on marked surface area between “mesh” and “CAD”

Mean deviation: 0.09 FS to reference; 0.02 IOS to reference. ∑: 0.90 FS to reference; 0.20 IOS to reference

Area of valid distance

The marked reference surface area that is used for the comparison

Mean deviation: 1647.41 FS to reference; 1749.66 IOS to reference. ∑: 16474.05 FS to reference; 1749.66 IOS to reference

Integrated distance

The marked inscribed volume of the surface comparison

Mean deviation:  − 146.19 FS to reference;  − 8.81 IOS to reference. ∑:  − 1461.89 FS to reference;  − 88.14 IOS to reference

Integrated absolute distance

Describes an absolute value of the marked integrated distance

Mean deviation: 450.46 FS to reference; 127.27 IOS to reference. ∑: 4504.56 FS to reference; 1272.71 IOS to reference

  1. Parameters used for area analysis relating to the marked area: Maximum distance; minimum distance; mean distance; mean absolute distance; area of valid distance; integrated distance and integrated absolute distance. All values in the table are given in millimetres (mm).
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