Mandibular molar with six canals: Report of cases

Abstract

A mandibular molar with more than four canals is an interesting example of anatomic variations. This case report describes a mandibular first molar with six canals, three canals located in the mesial root and three canals in distal root. The canals were instrumented with rotary system and irrigated with NaOCl (5.25%) and normal saline as the final irrigant. The canals were filled with gutta-percha (Denstply, Maillefer, Switzerland) and AH-plus sealer (Dentsply DeTrey GmbH Konstanz, Germany). This case shows a rare anatomic configuration and points out the importance of search for additional canals.