1.Baseline indexes
1.1.Inclusion criteria
|
Finished active orthodontic treatment | Yes
|
1.2.Exclusion criteria
|
Exclusion criteria | No
|
2.Before wearing
|
Sound distortion | No
|
3.Immediately after wearing
|
Sound distortion | Yes
|
4.24 hours after wearing
|
Sound distortion | Yes
|
5.1 week after wearing
|
Sound distortion | Yes
|
6.1 month after wearing
|
Sound distortion | Yes
|
7.3 months after wearing
|
Sound distortion | Yes
|