Research Article
Epidemiology of Malocclusion and Assessment of Orthodontic Treatment Need for Nepalese Children
Table 4
Relationship between the IOTN (DHC) grades and study population.
| IOTN (DHC) | Males | Females | Total | Percentage |
| Grade 1—no need for treatment | 161 | 141 | 302 | 15.02 | Grade 2—mild/little need | 159 | 137 | 296 | 14.7 | Grade 3—moderate/borderline need | 292 | 192 | 484 | 24.07 | Grade 4—severe treatment need | 251 | 245 | 496 | 24.67 | Grade 5—extreme treatment need | 258 | 174 | 432 | 21.59 |
| Total | 1121 | 889 | 2010 | 100 |
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