Table 4 Descriptive statistics calculated from exported geometries of the surface comparisons. There are no differences in the total absolute deviations (mm) between digital plaster casts and intraoral scans concerning the different patient variables. Cases with extreme values (outliers with mean values greater than 0.04 mm or less than −0.04 mm) were manually inspected and the source of error was assed

Males

0.020

0.022

0.013

−0.064

0.077

14u, 16u, 19l, 26l

4

1

Females

0.023

0.031

0.017

−0.158

0.049

15u, 21l, 22u

2

Early mixed dentition

0.018

0.017

0.013

−0.064

0.051

14u, 16u, 22u, 26l,

4

1

Late mixed dentition

0.027

0.038

0.016

−0.158

0.077

15u, 19l, 21l

3

Upper jaw

0.022

0.034

0.012

−0.158

0.021

14u, 15u, 16u, 22u

2

Lower jaw

0.021

0.019

0.015

−0.011

0.077

19l, 21l , 26l

3

Angle class I

0.015

0.017

0.008

−0.005

0.049

21l

1

Angle class II/1

0.024

0.038

0.012

−0.158

0.038

14u, 15u, 16u

3

1

Angle class II/2

0.032

0.022

0.029

−0.043

0.077

19l, 22u

Angle class III

0.015

0.013

0.017

−0.018

0.051

26l

1