Table 5.
Frequency of smile line, smile arc, maxillary teeth displayed during smiling of total subjects (males and females), and gender-based differences for various parameters using Pearson chi-square test.
| Total subjects | Male | Female | P value | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| N | % of total | N | % of total | % within gender | N | % of total | % within gender | |||
| Smile line level | Average | 99 | 63.1 | 50 | 31.8 | 64.9 | 49 | 31.2 | 61.3 | 0.032∗ |
| Low | 23 | 14.6 | 17 | 10.8 | 22.1 | 6 | 3.8 | 7.5 | ||
| High | 23 | 14.6 | 6 | 3.8 | 7.8 | 17 | 10.8 | 21.3 | ||
| Gummy | 12 | 7.6 | 4 | 2.5 | 5.2 | 8 | 5.1 | 10 | ||
|
| ||||||||||
| Smile arc | Consonant | 105 | 66.9 | 52 | 33.1 | 67.5 | 53 | 33.8 | 66.3 | 0.140 |
| Flat | 42 | 26.8 | 23 | 14.6 | 29.9 | 19 | 12.1 | 23.8 | ||
| Reversed | 10 | 6.4 | 2 | 1.3 | 2.6 | 8 | 5.1 | 10 | ||
|
| ||||||||||
| Maxillary teeth displayed during smiling | A-smile | 2 | 1.3 | 0 | 0 | 0 | 2 | 1.3 | 2.5 | 0.002∗ |
| B-smile | 25 | 15.9 | 5 | 3.2 | 6.5 | 20 | 12.7 | 25 | ||
| C-smile | 66 | 42 | 37 | 23.6 | 48.1 | 29 | 18.5 | 36.3 | ||
| D-smile | 55 | 35 | 33 | 21 | 42.9 | 22 | 14 | 27.5 | ||
| E-smile | 9 | 5.7 | 2 | 1.3 | 2.6 | 7 | 4.5 | 8.8 | ||
∗ Significant <0.05.