Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 22 0 2025 10 22 4902 4902 EN Mahdi Isaabadi Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Siamak Yaghobee Department of Periodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Behnam Bolhari Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran Fatemeh Malekpour Department of Endodontics, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran 2023 08 05 2023 09 25 Dental anomalies can be challenging for clinicians to diagnose and treat, such as fusion/gemination, which can be considered one of the most challenging anomalies to present a treatment plan for, due to esthetic, orthodontic, and periodontal problems they can cause in most cases. This case report describes an 8-year-old patient who complained of the unpleasant appearance of her right central incisor. Oral and radiographic examinations revealed a supernumerary tooth unilaterally fusing with the maxillary permanent central incisor. Two major factors in choosing a treatment plan in this case included: patient's age and presence of anomaly in the esthetic zone. This case report describes a treatment approach involving endodontic, periodontal, and restorative interventions for preserving a tooth in a child who could not undergo routine treatments such as implant placement due to incomplete growth of her dentoalveolar region, and bone deficiency caused by the dental anomaly. https://fid.tums.ac.ir/index.php/fid/article/view/4902 https://fid.tums.ac.ir/index.php/fid/article/download/4902/2184