Orthodontic treatment in the periodontal patient requires a rigorous multidisciplinary approach. Proper management of the end-of-treatment phase is essential to prevent relapse and ensure long-term oral health. This presentation explores the clinical protocols for managing patients at the conclusion of active therapy, focusing on three key areas: retention, gingival hypertrophies, and supportive periodontal care. Post-orthodontic retention. In patients with reduced periodontal support, alteration of the tooth's center of resistance combined with continuous muscular forces increases the risk of flaring and pathological migration. This section illustrates the need for fixed or removable splinting protocols to stabilize the affected elements. Post-orthodontic gingival hypertrophies. Biofilm accumulation on orthodontic devices, together with chronic inflammation and soft tissue remodeling, can lead to noticeable fibrotic or edematous thickening of the gingival margin. The therapeutic approach is described in detail, progressing from initial periodontal non surgical therapy, to surgical techniques such as gingivectomy or gingivoplasty, aimed at restoring proper gingival architecture, eliminating pseudopockets, and re-establishing pink esthetic harmony. Supportive Periodontal Care (SPC). The transition to maintenance requires the immediate implementation of a personalized recall schedule, based on individual risk assessment. This section highlights the clinical and instrumental measures needed to monitor splints, detect early signs of disease reactivation, and thoroughly instruct patients in the proper use of home care aids.