The article presents a maxillary first molar with 5 canals. The morphology is atypical because it is characterized by a single palatal root with 2 canals with separate orifices joining in the apical third. A literature review regarding the morphology of maxillary first molars is also discussed. Modifications to the normal access opening and examination of the pulpal floor for additional canals are stressed to improve the chances of a better and successful root canal therapy