Table 4 Distribution of occlusal traits according to the level of orthodontic treatment need (DHC) among school children in southwestern Ethiopia, 2018
Malocclusion | Total | Treatment need – IOTN (DHC) | ||||||
|---|---|---|---|---|---|---|---|---|
No/Little | Moderate | Definite | ||||||
N(%) | N (%) | N (%) | N (%) | |||||
Increased overjet (a) | 107(30.8) | 49(14.1) | 32(9.2) | 26(7.5) | ||||
Reverse overjet (b, m) | 3(0.9) | 0 | 0 | 3(0.9) | ||||
Contact point displacement (d) | 81(23.3) | 35(10.0) | 26(7.5) | 20(5.8) | ||||
Open bite (e) | 5 | 1.4 | 2 | 0.6 | 3 | 0.9 | ||
Increased overbite (f) | 6 | 1.7 | 4 | 1.1 | 2 | 0.6 | ||
Crossbite (c, l) | 17 | 4.9 | 13 | 3.7 | 1 | 0.3 | 3 | 0.9 |
Tooth absence (h) | 13 | 3.8 | 13 | 3.8 | ||||
Supernumerary teeth (x) | 4 | 1.2 | 4 | 1.2 | ||||
Partially erupted, tipped or impacted teeth (t) | 17 | 4.9 | 17 | 4.9 | ||||
Impeded eruption of teeth (i) | 18 | 5.2 | 18 | 5.2 | ||||
Prenormal or postnormal occlusions | 29 | 8.4 | 29 | 8.4 | ||||
Normal occlusion or Minor malocclusions | 47 | 13.5 | 47 | 13.5 | ||||