Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 17 0 2020 11 09 2673 2673 EN Meisha Gul Department of Operative Dentistry, The Aga Khan University Hospital, Karachi, Pakistan AND Department of Pediatric Dentistry, Bahria University Medical and Dental College, Karachi, Pakistan Samira Adnan Department of Operative Dentistry, Jinnah Sindh Medical University, Karachi, Pakistan Fahad Umer Department of Operative Dentistry, The Aga Khan University Hospital, Karachi, Pakistan 2018 07 06 2018 11 08 Endodontic treatment of maxillary incisors may be considered straight forward. However, in some instances, they may exhibit aberrant morphology. One of these rare variations in tooth morphology is dens invaginatus. To improve the endodontic prognosis of such teeth, a detailed evaluation of the tooth under treatment is important, which requires comprehensive clinical and radiographic examinations, including periapical radiography and cone-beam computed tomography (CBCT), which is highly recommended whenever atypical root canal morphology is suspected on a periapical radiograph. The current case report discusses the diagnosis of type IV dens invaginatus in a maxillary lateral incisor using CBCT. https://fid.tums.ac.ir/index.php/fid/article/view/2673 https://fid.tums.ac.ir/index.php/fid/article/download/2673/1823