Amelogenesis imperfecta (AI) is an inherited enamel dysplasia involving both dentitions with no other systemic effects. The hereditary pattern is autosomal or X-related dominant or recessive. Its prevalence is approximately 1:14,000-1:16,000. It can be classified as hypocalcified, hypoplastic and hypomaturated according to clinical, radiological, histological and hereditary findings. This study presents a case of hypomaturated type Al in a 16-year-old young man that was successfully treated with different types of resin composites. The patient was regularly recalled during the one-year postoperative period. Radiographic and clinical examinations at recall revealed no evidence of complications associated with the restored teeth or their supporting structures.