Inclusion Criteria:  Patients with the proper completion of orthodontic treatment and correction of the initial malocclusion. Acceptable oral hygiene (assessed through clinical examination). Presence of all teeth up to the second molars. Clinically acceptable teeth alignment.  Exclusion Criteria:  Patients with any systemic condition that may have an influence on periodontal health. Patients with facial deformities. Initial malocclusion that required extreme corrections, large transverse expansions or orthognathic surgery. History of periodontal diseases.