Single-rooted maxillary first molar with a single canal: Endodontic retreatment
Torre de la Fuente, Francisco de la; Cisneros Cabello, Rafael; Aranguren, José Luís; Estévez Luaña, Roberto; Velasco Ortega, Eugenio; Segura-Egea, Juan José
This 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.