Research Article
Epidemiology of Malocclusion and Assessment of Orthodontic Treatment Need for Nepalese Children
Table 5
The data for various IOTN studies as compared to the present study in terms of IOTN (DHC) grades.
| | Study | Grade 1 | Grade 2 | Grade 3 | Grade 4 | Grade 5 |
| | Brook and Shaw (United Kingdom), 1989 [34] | 7.2% | 27.92% | 32.13% | 27.62% | 5.10% | | So and Tang (Turkey), 1993 [35] | 2% | 21% | 25% | 49% | 3% | | Burden and Holmes (United Kingdom), 1994 [36] | 5.03% | 40.96% | 24.02% | 20.02% | 9.45% | | Hamdan (Jordan), 2001 [37] | 9.3% | 40.93% | 22.18% | 20.31% | 7.18% | | Camilleri and Mulligan (Malta), 2007 [38] | 13.96% | 15.09% | 28.86% | 25.84% | 16.22% | | Current study (Nepal), 2013 | 15.02% | 14.7% | 24.07% | 24.67% | 21.59% |
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