Table 1 Description of the study group.
Total | Primary | Iatrogenic | P value | |
|---|---|---|---|---|
Gender | 0.296 | |||
Female | 36 | 13 | 23 | |
Male | 4 | 2 | 2 | |
Etiology | 40 | 15 | 25 | 0.113 |
Displaced teeth | 1 | |||
Bracket height | 2 | |||
Unilateral distalization | 12 | |||
Intermaxillary elastics | 6 | |||
Space closure | 4 | |||
Occlusion | 0.251 | |||
Class I | 33 | 14 | 19 | |
Class II | 3 | 1 | 2 | |
Class III | 4 | 0 | 4 | |
Overbite | 0.052 | |||
Reduced | 7 | 0 | 7 | |
Normal | 16 | 6 | 10 | |
Increased | 17 | 9 | 8 | |
Vertical facial pattern | 0.073 | |||
Brachyfacial | 7 | 5 | 2 | |
Mesofacial | 24 | 6 | 18 | |
Dolichofacial | 9 | 4 | 5 | |
Appliances | 0.170 | |||
Labial | 29 | 9 | 20 | |
Lingual | 11 | 6 | 5 | |
Extraction treatment | 0.060 | |||
Extraction | 21 | 5 | 16 | |
Non-extraction | 19 | 10 | 9 | |
Age at T0 (y) | 24.0 ± 5.3 | 26.1 ± 5.2 | 22.7 ± 5.0 | 0.908 |
Age at T2 (y) | 25.9 ± 5.2 | 27.7 ± 5.1 | 24.8 ± 5.1 | 0.987 |
Time interval T1-T0 (mo) | 14.3 ± 7.2 | 9.9 ± 5.4 | 16.9 ± 6.9 | 0.197 |
Time with turbos (mo) | 5.9 ± 1.9 | 5.9 ± 1.9 | 5.9 ± 1.9 | 0.882 |