Table 3. Summary of the displacement while smiling on the cleft side in the two groups.
| Area | Lateral–displacement (X-value) | Upward–displacement (Y-value) | Downward–displacement (Y-value) | Backward–displacement (Z-value) |
|---|---|---|---|---|
| Cheek | NS | * Cleft < Control | NS | |
| Nasal—dorsum | NS | NS | NS | NS |
| Alar | NS | NS | NS | *Cleft < Control |
| Subalar | Cleft > Control^ | NS | NS | *Cleft < Control |
| Upper lip | NS | *Cleft < Control | **Cleft < Control | |
| The labial commissure | Cleft > Control^ | *Cleft < Control | **Cleft < Control | |
| Lower lip | NS | *Cleft > Control | NS |
** P < 0.01
* P < 0.05; NS, not significant
^, results of regression analysis.
Cleft > Control, the Cleft group showed a significantly greater average displacement than the Control group; Cleft < Control, the Control group showed a significantly greater average displacement than the Cleft group.