RESUMEN
Intrinsic discoloration can be formed due to many reasons, and by clinical evaluation and history from the patient, the exact cause of the discoloration can be known and one of the reasons that can make the intrinsic discoloration is the high level of fluoride intake. Two siblings had come to the Department of Restorative Dentistry clinics; they had the same compliance which is severe dental fluorosis, caries, and malocclusion of their teeth. What is interesting and worrying is that some patients with severe dental fluorosis show higher levels of caries, which can be explained as the enamel becoming porous with severe fluorosis. The possible treatment options were discussed with the patients. According to their financial concern and their desire to get their teeth done as soon as possible, the use of direct composite veneer for the treatment of anterior teeth was decided. Long-term clinical trials are required to assess the efficacy of various treatment options for fluorosis of different severity.