Tehran University of Medical Sciences Frontiers in Dentistry 2676-296X 11 1 2014 02 15 111 7 Chintan Joshi Department of Conservative Dentistry and Endodontics, Karnavati School of Dentistry, Uvarsad, Gandhinagar, India. Surabhi Joshi Department of Conservative Dentistry and Endodontics, Karnavati School of Dentistry, Uvarsad, Gandhinagar, India. 2015 10 16 C-shaped configuration in the upper maillary first molar is an extremely rare appearance (0.12%). This case reports management of the tooth with such a configuration as well as depiction of its internal morpholgy and external morphology through spiral computed tomography and dentascan in the contralateral tooth with similar morphology. After careful clinical observation and confirmation through spiral computed tomography, it was concluded that the teeth had Melton category I configuration with fused roots. https://fid.tums.ac.ir/index.php/fid/article/view/544 https://fid.tums.ac.ir/index.php/fid/article/download/544/519