1 (6-12), group 2 (12-21), group 3 (21-40), group 4 (40-61)), type and severity of malocclusion, periodontal status, type of orthodontic appliances, period and type of retention based on data from their records, study models and photo documentation.Results: It was found a correlation between the age, type and severity of malocclusion, periodontal status, type of orthodontic appliances, cooperation of the patient and the choice of retainer. The most commonly used retainers in all patient groups were established. Conclusion: Orthodontic retainers counteract the natural tendency of teeth to return to their original position under the influence of periodontal, occlusal and soft tissue forces.