Table 4 Percentage of subjects with clinically significant tooth-width discrepancies larger than 2.0 mm according to ethnic group
Low-range proportion | High range proportion | |||
|---|---|---|---|---|
Mandibular deficiency | Maxillary excess | Mandibular excess | Maxillary deficiency | |
Anterior ratio | ||||
Malay | 11.5% | 15.4% | 1.9% | 3.8% |
Chinese | 3.7% | 3% | 5.6% | 20.4% |
Indian | 9.1% | 9.1% | 4.5% | 11.4% |
Overall ratio | ||||
Malay | 19.2% | 19.2% | 1.9% | 5.8% |
Chinese | 11.1% | 13% | 24.1% | 27.8% |
Indian | 11.4% | 11.4% | 9.1% | 13.6% |