Table 5 Percentage distribution of different KIG-grades requiring treatment (9 classifications and 16 grades) in the billing data of the National Association of Statutory Health Insurance Dentists (KZBV) including all age groups in the year 2020 (Source: [7] p 85, tab. 3.26)

A

Craniofacial anomalies

-

-

0.3

0.3

D

Sagittal discrepancy increased overjet

-

26.2

7.5

33.7

M

Sagittal discrepancy negative overjet

-

17.9

0.7

18.6

O

Vertical discrepancy open bite

0.8

0.2

0.3

1.3

T

Vertical discrepancy deep bite

1.5

-

-

1.5

B

Transverse discrepancy scissors bite

-

5.4

-

5.4

K

Transverse discrepancy crossbite

1.8

14.8

-

16.6

E

Contact point displacement

9.3

0.8

-

10.1

P

Space deficiency

6.4

6.0

-

12.4

total

19.9

71.4

8.7

100.0