RESUMO
BACKGROUND: Patients with ß-thalassemia major (ß-TM), a genetic issue due to hemoglobin (Hb) synthesis disorder, require life-long erythrocyte transfusion. The purpose of this study is to evaluate and compare gingival pigmentation and skin color with serum ferritin levels of patients with ß-TM, using the Dummett's oral pigmentation index (DOPI) and Fitzpatrick skin scale, respectively. METHODS: A total of 100 patients were monitored at a thalassemia care center. Each patient's gingival pigmentation and skin color were matched with DOPI and the skin scale under natural light. Serum ferritin levels, the interval of blood transfusions, and iron chelation medications were studied. A gingival pigmentation score and skin color type were compared with the serum ferritin. RESULTS: A significant correlation was found between age, serum ferritin, pigmentation score, and skin color, which means as serum ferritin level increases, gingival pigmentation score increases, and skin color darkens. CONCLUSION: This study evaluated the correlation between gingival pigmentation and skin color with serum ferritin levels and established gingival pigmentation as a sign of iron deposition in ß-TM patients. This is the simplest and least invasive method for evaluating serum ferritin level parameters in ß-TM patients.
