Table 1.
Results of smile measurements
| Measurement | Occlusal vertical dimension | Mean±SD | P |
|---|---|---|---|
| Interlabial gap height (mm) | MI | 10.27±2.20 | <0.001 (significant) |
| +1 | 11.13±2.12 | ||
| +2 | 13.05±2.52 | ||
| +3 | 13.55±2.62 | ||
| +4 | 16.13±2.26 | ||
| Intercommissural width (mm) | MI | 61.69±4.82 | 0.839 (not significant) |
| +1 | 62.56±4.20 | ||
| +2 | 62.85±4.50 | ||
| +3 | 62.61±4.37 | ||
| +4 | 63.04±4.10 | ||
| Smile index | MI | 5.60±1.66 | <0.001 (significant) |
| +1 | 5.86±1.45 | ||
| +2 | 4.98±1.19 | ||
| +3 | 4.90±1.49 | ||
| +4 | 3.99±0.68 | ||
| Incisal edge-to-upper lip distance (mm) | MI | 7.28±2.16 | 0.530 (not significant) |
| +1 | 7.63±2.38 | ||
| +2 | 7.68±2.17 | ||
| +3 | 8.06±1.97 | ||
| +4 | 7.76±1.86 | ||
| Incisal edge-to-lower lip distance (mm) | MI | 2.90±2.07 | <0.001 (significant) |
| +1 | 4.08±2.02 | ||
| +2 | 5.73±3.12 | ||
| +3 | 6.41±2.74 | ||
| +4 | 7.51±2.18 | ||
| Display zone area (mm2) | MI | 509±133 | <0.001 (significant) |
| +1 | 630±166 | ||
| +2 | 694±165 | ||
| +3 | 731±190 | ||
| +4 | 803±159 |
MI: Maximum intercuspation, SD: Standard deviation