Localized gingival recession occurs in approximately 10-15% of children and adolescents. In young children, gingival recession is most commonly seen on the labial surfaces of the mandibular incisors, whereas in adolescents, the buccal surfaces of the upper molars and premolars are the most commonly affected areas. The cause of gingival recession in this age group is associated with a labial and irregular position of the teeth, toothbrush trauma, history of orthodontic treatment, poor oral hygiene or high frenulum attachment. The first step in the treatment of localized gingival recession is to determine the etiology. In cases of labial, crowded mandibular incisors or gingival recession due to crossbite, the occlusion should be corrected by eliminating the trauma on the tooth. In more severe cases, periodontal surgical techniques such as stalked grafts, free gingival grafts, gingival unit graft, connective tissue grafts, epithelial connective tissue grafts and guided tissue regeneration may be required to treat gingival recession. Among these techniques, connective tissue grafting is considered the gold standard. However, the need for a second surgical field can be considered as a disadvantage of the connective tissue graft technique, especially in pediatric and adolescent patients. 

In this case report, it is shown that gingival recession due to crossbite of the lower incisor was treated with a gingival unit graft after correction of the position of the tooth with a removable and Z spring appliance.