Torre de la Fuente, Francisco de laCisneros Cabello, RafaelArangurén Cangas, JoséEstévez Luaña, RobertoVelasco Ortega, EugenioSegura-Egea, Juan José2016-07-192016-07-192008Torre, F., Cisneros-Cabello, R., Aranguren, J. L., Estévez, R., Velasco-Ortega, E., & Segura-Egea, J. J. (2008). Single-rooted maxillary first molar with a single canal: endodontic retreatment. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 106(6), e66-e68.2212440310792104http://hdl.handle.net/11268/5416This case report presents an unusual root canal system in a maxillary first molar tooth: a single canal in a single root. The endodontic access cavity displayed only 1 canal orifice. This case demonstrated that: 1) clinicians must have adequate knowledge about root canal morphology and its variations; 2) the location and morphology of root canals should be identified radiologically before the root canal treatment; and 3) careful examination of radiographs and the internal anatomy of teeth is essential.engjournal article10.1016/j.tripleo.2008.07.024restricted accessEndodonciaOdontología