Table 5 Prevalence of malocclusions by age (7 to 15 years)
Malocclusions by age (years) | Class 1 | Class 2 | Class 3 | Asymmetries | Total |
|---|---|---|---|---|---|
n(%) | n(%) | n(%) | n(%) | n(%) | |
7 | 161 (15.2) | 50 (6.5) | 6 (7.0) | 52 (7.3) | 269 (10.3) |
8 | 112 (10.6) | 61 (8.0) | 10 (11.8) | 58 (8.2) | 241 (9.2) |
9 | 132 (12.5) | 71 (9.3) | 10 (11.8) | 75 (10.6) | 288 (11.0) |
10 | 112 (10.6) | 76 (9.9) | 11 (12.9) | 72 (10.1) | 271 (10.3) |
11 | 95 (9.0) | 105 (13.7) | 11 (12.9) | 76 (10.7) | 287 (11.0) |
12 | 112 (10.6) | 86 (11.2) | 5 (5.9) | 90 (12.7) | 293 (11.2) |
13 | 108 (10.2) | 103 (13.4) | 8 (9.4) | 87 (12.2) | 306 (11.7) |
14 | 125 (11.8) | 112 (14.6) | 10 (11.8) | 99 (13.9) | 346 (13.2) |
15 | 101 (9.5) | 100 (13.0) | 13 (15.3) | 101 (14.2) | 315 (12.0) |
Total | 1,058 (100.0) | 764 (100.0) | 85 (100.0) | 710 (100.0) | 2,617 (100.0) |