Introduction
Materials and methods
Results
Single and average measurements of the N, A, and B points: first versus second ultrasonographer
Measurement point | Ultrasonographer 1, mean (SD) (mm) | Ultrasonographer 2, mean (SD) (mm) | Mean diff. (mm) |
p value* |
---|---|---|---|---|
Point N | 5.31 (1.14) | 5.36 (1.01) | 0.05 | 0.53 |
Point A | 10.87 (0.98) | 10.69 (0.98) | 0.18 | 0.37 |
Point B | 10.02 (1.40) | 10.17 (1.25) | 0.15 | 0.59 |
Pearson’s r (95% CI) |
r, p value | Spearman’s ρ (95% CI) |
ρ, p value | ICC (95% CI) | CCC (95% CI) | |
---|---|---|---|---|---|---|
Ultra 1, N Ultra 2, N |
0.990 (0.949–0.998) | 0.000 |
0.983 (0.739 to 1.000) | 0.000 |
0.984 (0.939–0.996) |
0.982 (0.943–0.994) |
Ultra 1, A Ultra 2, A |
0.837 (0.389–0.965) | 0.005 |
0.854 (0.303 to 1.000) | 0.003 |
0.838 (0.467–0.960) |
0.822 (0.408–0.955) |
Ultra 1, B Ultra 2, B |
0.840 (0.397–0.965) | 0.005 |
0.672 (−0.106 to 0.987) | 0.047 |
0.844 (0.463–0.963) |
0.828 (0.433–0.956) |
Single and average measurements of thickness of soft tissues covering N, A, and B points: ultrasonographic versus radiographic results
Measurement point | Ultrasonography, mean (SD) (mm) | X-ray, mean (SD) (mm) | Mean diff. (mm) |
p value* |
---|---|---|---|---|
Point N | 5.33 (1.07) | 5.58 (1.00) | 0.24 | 0.55 |
Point A | 10.78 (0.94) | 11.22 (0.94) | 0.44 | 0.24 |
Point B | 10.09 (1.27) | 9.39 (1.24) | 0.70 | 0.20 |
X-ray versus ultrasonography | Pearson’s r (95% CI) |
r, p value | Spearman’s ρ (95% CI) |
ρ, p value | ICC (95% CI) | CCC (95% CI) |
---|---|---|---|---|---|---|
Point N |
0.363 (−0.397 to 0.828) | 0.336 |
0.359 (−0.433 to 0.931) | 0.343 |
0.382 (−0.379 to 0.821) |
0.354 (−0.339 to 0.798) |
Point A |
0.387 (−0.373 to 0.836) | 0.316 |
0.476 (−0.222 to 0.900) | 0.195 |
0.375 (−0.272 to 0.808) |
0.348 (−0.298 to 0.775) |
Point B |
0.274 (−0.477 to 0.794) | 0.472 |
0.069 (−0.720 to 0.819) | 0.861 |
0.253 (−0.346 to 0.749) |
0.231 (−0.374 to 0.698) |
Single and average measurements of ANB angle: ultrasonographic/photographic versus radiographic results
Measurement point | Ultrasonography, mean (SD) (mm) | X-ray, mean (SD) (mm) | Mean diff. (mm) |
p value |
---|---|---|---|---|
ANB angle | 6.00 (2.83) | 6.06 (2.74) | 0.06 | 0.76 |
X-ray versus ultrasonography | Pearson’s r (95% CI) |
r, p value | Spearman ρ, (95% CI) |
ρ, p value | ICC (95% CI) | CCC (95% CI) |
---|---|---|---|---|---|---|
ANB |
0.983 (0.916–0.996) | 0.000 |
0.962 (−0.730 to 1.000) | 0.000 |
0.984 (0.931–0.996) |
0.982 (0.924–0.996) |