|
The incidence of the orthodontic problems as assessed by the DHC of the IOTN |
||||||
| Orthodontic Problem |
Incidence % |
Grade 1 |
Grade 2 |
Grade 3 |
Grade 4 |
Grade 5 |
|
|
||||||
| Pre/post-normal occlusion |
3 |
3 |
||||
| Displacement |
89.1 |
3.6 |
25.5 |
16.4 |
43.6 |
|
| Crossbite |
44.5 |
14.5 |
13.6 |
16.4 |
||
| Open bite |
20 |
9.1 |
6.4 |
4.5 |
||
| Overbite |
33.6 |
18.2 |
8.2 |
7.3 |
||
| Overjet |
33.6 |
16.4 |
9.1 |
5.5 |
2.7 |
|
| Reverse overjet |
3.6 |
2.7 |
0.9 |
|||
| Scissors bite |
10.9 |
10.9 |
||||
| Partially erupted |
9.1 |
9.1 |
||||
| Impaction |
8.2 |
8.2 |
||||
| Submerged deciduous |
0 |
0 |
||||
| Supernumerary |
.9 |
0.9 |
||||
| Hypodontia |
3.6 |
3.6 |
0 |
|||
| Cleft lip-Palate |
3.9 |
3.9 |
||||
Hassan Head & Face Medicine 2006 2:2 doi:10.1186/1746-160X-2-2 |
||||||