Table 2 Comparative evaluation of mean and standard deviation of nasal breathers and mouth breathers
Parameters | Nasal breathers | Mouth breathers | t value | ||
|---|---|---|---|---|---|
Mean | SD | Mean | SD | ||
Upper pharyngeal airway width | 12.7 | 1.08 | 9.7 | 0.48 | 1.6 |
Lower pharyngeal airway width | 15.4 | 1.07 | 8.9 | 0.73 | 2.1 |
Maxillary intermolar width | 45.3 | 2.3 | 43.7 | 2.1 | 2.3 |
Mandibular inermolar width | 40.1 | 2.1 | 38.6 | 2.0 | 1.2 |
Palatal height | 10.4 | 1.5 | 13.4 | 1.8 | 3.0 |
Over jet | 2.5 | 1.01 | 4.5 | 1.6 | 6.8 |
Over bite | 3.5 | 1.02 | 3.1 | 1.0 | 2.6 |