The success of endodontic treatment is keenly correlated to the exploration of the entire root canal system, thorough cleansing (mechanical as well as chemical) followed by obturation of prepared root canal system using inert filling materials and a sealant.1 In order to achieve this goal, it is crucial to detect each and every canal inside the roots. Any existing root canals that remain undetected by the
operator during the entire course of endodontic treatment are a major threat to the failure of treatment.2 Hence the detailed knowledge of root canals morphology is essential. Considering the vast individual, genetic and ethnic variations, the clinicians must look for extra canals.