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Prevalence of malocclusion in each breathing-pattern group.
| Normal occlusion (n = 46) | Malocclusion (n = 57) | |
|---|---|---|
| Mouth-breathers (n = 21) | 7 (6.8%) | 14 (13.6%) |
| Oronasal-breathers (n = 25) | 9 (8.7%) | 16 (15.6%) |
| Nasal-breathers (n = 57) | 30 (29.1%) | 27 (26.2%) |
