Cephalometric effects of the elastodontic appliance in managing skeletal Class II division 1 cases
, , , , , et | 01 oct. 2021
Article Category: research-article
Publié en ligne: 01 oct. 2021
Pages: 251 - 258
© 2021 Domenico Ciavarella et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Figure 1.
Elastodontic appliance.Figure 2.
(A) Pre-treatment intra-oral photographs; (B) post-treatment intra-oral photographs.Figure 3.
Landmarks.Figure 4.
Reference lines for cephalometric analysis.Skeletal differences.
Patients |
Group EA |
Group C |
|
T0 |
T1 |
T0 |
T1 |
SN-PO |
Mean |
15.09 |
15.27 |
15.89 |
12.07 |
StD |
5.000 |
7.057 |
3.271 |
4.055 |
P
|
n.s (t - test) |
P** (Mann–Whitney) |
SN-Go-Me |
Mean |
32.58 |
31.58 |
34.61 |
33.76 |
StD |
4.080 |
4.859 |
3.796 |
3.993 |
P
|
n.s. (Mann–Whitney) |
P** (t - test) |
LFH |
Mean |
60.94 |
64.86 |
69.11 |
68.00 |
StD |
9.043 |
10.71 |
9.328 |
8.882 |
P
|
P* (t - test) |
n.s. (Mann–Whitney) |
Ar-Go-Me |
Mean |
127.3 |
126.1 |
134.7 |
132.6 |
StD |
8.351 |
7.074 |
6.117 |
5.604 |
P
|
n.s. (t - test) |
n.s. (Mann–Whitney) |
Ar-Go-N |
Mean |
53.44 |
52.37 |
58.88 |
57.89 |
StD |
4.644 |
4.280 |
2.856 |
4.002 |
P
|
n.s (t - test) |
n.s (Mann–Whitney) |
N-Go-Me |
Mean |
73.82 |
73.68 |
75.81 |
74.75 |
StD |
4.826 |
4.147 |
4.648 |
3.892 |
P
|
n.s. (Mann–Whitney) |
P* (t - test) |
Co-Gn |
Mean |
103.3 |
112.6 |
118.9 |
118.4 |
StD |
15.74 |
17.03 |
12.73 |
14.05 |
P
|
P*(Mann–Whitney) |
n.s. (Mann–Whitney) |
SN-PP |
Mean |
7.929 |
7.924 |
7.046 |
6.267 |
StD |
4.230 |
4.623 |
4.059 |
5.188 |
P
|
n.s. (Mann–Whitney) |
n.s. (t - test) |
Dental and aesthetic differences.
Patients |
Group EA |
Group C |
|
T0 |
T1 |
T0 |
T1 |
1+SN |
Mean |
96.85 |
100.9 |
107 |
105.9 |
StD |
10.84 |
7.775 |
4.827 |
5.809 |
P
|
P** (Mann–Whitney) |
n.s. (t - test) |
1-GoMe |
Mean |
95.98 |
97.2 |
90.85 |
91.18 |
StD |
3.092 |
6.347 |
6.486 |
7.244 |
P
|
n.s. (t - test) |
n.s. (Mann–Whitney) |
1+TVL |
Mean |
−9.661 |
−8.838 |
−11.98 |
−10.57 |
StD |
2.464 |
2.242 |
2.820 |
2.549 |
P
|
n.s. (t - test) |
P* (Mann–Whitney) |
A’-TVL |
Mean |
0.368 |
0.042 |
−0.2400 |
0.0480 |
StD |
1.749 |
0.9312 |
0.6867 |
2.006 |
P
|
n.s. (Mann–Whitney) |
n.s. (t - test) |
Ls-TVL |
Mean |
2.095 |
2.043 |
1.493 |
0.7110 |
StD |
2.135 |
2.264 |
1.921 |
3.263 |
P
|
n.s. (Mann–Whitney) |
n.s. (t - test) |
Li-TVL |
Mean |
−2.333 |
−1.429 |
−5.448 |
−3.779 |
StD |
2.964 |
3.358 |
4.004 |
3.480 |
P
|
n.s. (t - test) |
P** (t - test) |
B’-TVL |
Mean |
−12.19 |
−10.4 |
−15.81 |
−13.86 |
StD |
2.967 |
3.950 |
5.120 |
3.748 |
P
|
P** (t - test) |
n.s. (t - test) |
Pog’-TVL |
Mean |
−12.85 |
−10.01 |
−17.73 |
−14.43 |
StD |
3.423 |
3.512 |
5.428 |
5.496 |
P
|
P** (Mann–Whitney) |
P* (t - test) |
Comparison of skeletal, dental, and aesthetic variables between two groups.
Skeletal variables |
EA/C |
P |
SN-PO |
0.1199 |
n.s. |
SN-Go-Me |
0.3378 |
n.s. |
LFH |
0.0408 |
P* |
Ar-Go-Me |
0.5780 |
n.s. |
Ar-Go-N |
0.9342 |
n.s. |
N-Go-Me |
0.9342 |
n.s. |
Co-Gn |
0.0173 |
P* |
SN-PP |
0.8513 |
n.s. |
Dental variables |
1+SN |
0.1139 |
n.s. |
1-GOME |
0.6107 |
n.s. |
1+TVL |
0.3133 |
n.s. |
Aesthetic variables |
A’-TVL |
0.3472 |
n.s. |
Ls-TVL |
0.3150 |
n.s. |
Li-TVL |
0.9453 |
n.s. |
B’-TVL |
0.6997 |
n.s. |
Pog’-TVL |
0.7158 |
n.s. |