Table 2.
Linear distances and degree for the serial cephalometric parameters.
| Variable | T12 | T23 | T34 | T14 | T24 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | Mean | SD | Mean | SD | ||||||
| Linear distance | |||||||||||||||
| NSP | −0.9 | 2.71 | — | 1.6 | 3.27 | ∗ | −0.3 | 2.73 | — | 0.4 | 2.53 | — | 1.2 | 3.07 | ∗ |
| UOP | −4.1 | 4.42 | ∗ | 0.5 | 4.34 | — | −1.1 | 4.56 | — | −4.7 | 4.19 | ∗ | −0.6 | 4.11 | — |
| LOP | −1.7 | 4.59 | ∗ | −1.7 | 3.61 | ∗ | 1.0 | 3.62 | — | −2.4 | 3.22 | ∗ | −0.7 | 4.55 | — |
| LGP | −2.0 | 3.77 | ∗ | 1.5 | 3.80 | ∗ | −0.2 | 3.63 | — | −0.6 | 3.38 | — | 1.3 | 4.07 | — |
| Tongue depth | 8.0 | 5.14 | ∗ | −4.6 | 6.04 | ∗ | 1.6 | 4.80 | — | 5.0 | 5.53 | ∗ | −3.0 | 5.20 | ∗ |
| Tongue length | 0.7 | 5.43 | — | −3.2 | 5.38 | ∗ | 0.0 | 5.63 | — | −2.5 | 6.14 | ∗ | −3.2 | 5.34 | ∗ |
| H-E | 1.3 | 5.09 | — | −3.1 | 4.05 | ∗ | 1.2 | 4.37 | ∗ | −0.5 | 5.16 | — | −1.9 | 3.15 | ∗ |
| Degrees | |||||||||||||||
| C4-S-N | 2.8 | 4.01 | ∗ | −0.4 | 3.66 | — | −0.6 | 4.44 | — | 1.7 | 5.16 | — | −1.1 | 4.63 | — |
∗Significant p < 0.05; —: not significant.
T12: postsurgical immediate change; T23: change between immediately and 6 weeks to 3 months after surgery; T34: change between 6 weeks to 3 months and over 1 year after surgical; T14: over 1-year final surgical change; T24: over 1 year surgical stability.
NSP: nasopharyngeal airway; UOP: upper oropharyngeal airway.
LOP: lower oropharyngeal airway; LGP: laryngopharyngeal airway.
H-E: distance between hyoid bone and epiglottis.
C4-S-N: craniocervical angle.