title: Mandibular molar with five root canals.
abstract: The purpose of this study was to demonstrate the importance of knowledge of the internal anatomy of root canals for the success of endodontic treatment. Lack of knowledge of anatomic variations and their characteristics in different teeth has been pointed out as one of the main causes of endodontic therapy failure. In this report, the authors describe the endodontic treatment of a mandibular first molar with five root canals, evaluate the rate of occurrence of this number of canals, and discuss the importance of their identification and treatment.
authors.affiliation: Universidade de Santa Cruz do Sul, Departamento de Enfermagern e Odontologia, Santa Cruz do Sul, RS, Brazil.
authors.forename: Fernando Branco
authors.initials: FB
authors.lastname: Barletta
authors.forename: Sidney Ricardo
authors.initials: SR
authors.lastname: Dotto
authors.forename: Magda de Sousa
authors.initials: Mde S
authors.lastname: Reis
authors.forename: Ronise
authors.initials: R
authors.lastname: Ferreira
authors.forename: Rosana Maria Coelho
authors.initials: RM
authors.lastname: Travassos
mesh_terms: D000328:Adult; D003786:Dental Pulp Cavity / Q000033:anatomy & histology*; D006801:Humans; D008334:Mandible; D008853:Microscopy / Q000295:instrumentation; D008963:Molar / Q000033:anatomy & histology*; D011671:Pulpitis / Q000628:therapy*; D012390:Root Canal Therapy; D014092:Tooth Root / Q000033:anatomy & histology*