Table 3 Percentage distribution of different KIG-grades requiring treatment (9 classifications and 16 grades) in patients with statutory health insurance between 2017 and 2021
KIG | Description | Grade 3 [n] | Grade 3 [%] | Grade 4 [n] | Grade 4 [%] | Grade 5 [n] | Grade 5 [%] | Grade 3—5 [n] | Grade 3—5 [%] |
|---|---|---|---|---|---|---|---|---|---|
A | Craniofacial anomalies | - | - | - | - | 4 | 0.6 | 4 | 0.6 |
D | Sagittal discrepancy increased overjet | - | - | 182 | 26.6 | 53 | 7.8 | 235 | 34.4 |
M | Sagittal discrepancy negative overjet | - | - | 83 | 12.1 | 6 | 0.9 | 89 | 13.0 |
O | Vertical discrepancy open bite | 4 | 0.6 | 2 | 0.3 | 1 | 0.1 | 7 | 1.0 |
T | Vertical discrepancy deep bite | 9 | 1.3 | - | - | - | - | 9 | 1.3 |
B | Transverse discrepancy scissors bite | - | - | 41 | 6.0 | - | - | 41 | 6.0 |
K | Transverse discrepancy crossbite | 9 | 1.3 | 111 | 16.3 | - | - | 120 | 17.6 |
E | Contact point displacement | 77 | 11.3 | 4 | 0.6 | - | - | 81 | 11.9 |
P | Space deficiency | 38 | 5.6 | 59 | 8.6 | - | - | 97 | 14.2 |
total | 137 | 20.1 | 482 | 70.5 | 64 | 9.4 | 683 | 100.0 |