Table 4.
Perception of the smile attractiveness by gender
| Gender, n (%) | P | |||
|---|---|---|---|---|
| Male | Female | |||
| Q1 | Bilateral increase in width of central incisors by 1-2 mm | 15 (12.9) | 18 (14.1) | 0.497 |
| Unilateral increase in width of central incisors by 1-2 mm | 11 (9.5) | 18 (14.1) | ||
| Unaltered photograph | 90 (77.6) | 92 (71.9) | ||
| Q2 | Unaltered photograph | 47 (40.5) | 43 (33.6) | 0.523 |
| Unilateral decrease in the width of central incisors by 1-2 mm | 37 (31.9) | 47 (36.7) | ||
| Bilateral decrease in the width of central incisors by 1-2 mm | 32 (27.6) | 38 (29.7) | ||
| Q3 | Bilateral increase in length of central incisors by 1-2 mm | 11 (9.5) | 8 (6.3) | 0.556 |
| Unaltered photograph | 99 (85.3) | 115 (89.8) | ||
| Unilateral increase in length of central incisors by 1-2 mm | 6 (5.2) | 5 (3.9) | ||
| Q4 | Unaltered photograph | 63 (54.3) | 67 (52.3) | 0.332 |
| Unilateral decrease in length of central incisors by 1-2 mm | 8 (6.9) | 16 (12.5) | ||
| Bilateral decrease in length of central incisors by 1-2 mm | 45 (38.8) | 45 (35.2) | ||
| Q5 | Narrow buccal corridors (showing up to the distal surface of first premolar) | 18 (15.5) | 26 (20.3) | 0.607 |
| Unaltered photograph | 63 (54.3) | 64 (50.0) | ||
| Narrow buccal corridors (showing only up to the mesial surface of second premolar) | 35 (30.2) | 38 (29.7) | ||
| Q6 | 0 mm of gingival display | 7 (6.0) | 13 (10.2) | 0.353 |
| <3 mm gingival display | 11 (9.5) | 8 (6.3) | ||
| Unaltered photograph | 98 (84.5) | 107 (83.6) | ||
| Q7 | Lower lip covering 1 mm of the upper anterior teeth | 14 (12.1) | 10 (7.8) | 0.154 |
| Unaltered photograph | 82 (70.7) | 104 (81.3) | ||
| Lower lip covering >1 mm of the upper anterior teeth | 20 (17.2) | 14 (10.9) | ||
| Q8 | Reversed smile arc | 18 (15.5) | 16 (12.5) | 0.685 |
| Straight smile arc | 30 (25.9) | 30 (23.4) | ||
| Unaltered photograph | 68 (58.6) | 82 (64.1) | ||
| Q9 | Lower midline shifted by 2 mm in relation to the upper midline | 27 (23.3) | 22 (17.2) | 0.393 |
| Unaltered photograph | 52 (44.8) | 67 (52.3) | ||
| Lower midline shifted by 1 mm in relation to the upper midline | 37 (31.9) | 39 (30.5) | ||