Table 2. Dental arch form distribution according to classes of malocclusion.
| Arch shape | Class I | Class II | Class III |
| Oval | 10 (100 %) | 5 (50%) | 9 (90%) |
| Tapered | 0 | 3 (30%) | 0 |
| Square | 0 | 2 (20%) | 1 (10%) |
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