Unsightly gingival enlargement is a frequent side effect in organ transplant recipients under immunosuppressive therapy with cyclosporin A (CsA). The purpose of this article was to report the treatment management of cyclosporin A-induced gingival overgrowth in a 9-year-old renal transplant recipient. Surgical reduction of the overgrown gingival tissue associated with an intensive biofilm control program and conversion from CsA to tacrolimus provided good clinical outcome with improvement of mastication, feeding, and phonetics. Gingival overgrowth stabilized with the change of medication. After approximately 3 months of follow-up, a regression of gingival enlargement was observed.