Table 8 Eligibility criteria for patients included in the study.
Inclusion criteria | Exclusion criteria |
|---|---|
Female patients | Systemic disease or syndrome |
Age 15–21 years | Abnormalities in teeth size and/or shape |
Full permanent dentition | Vertical, transverse or antero-posterior skelet al discrepancies |
Good general and oral health | History of previous orthodontic treatment |
Severe crowding or protrusion requiring first premolars extractions | Anti-inflammatory medication |