The aim of this case report is to project the use of advanced imaging techniques in the success of complex root and root canal anatomies which cannot be elicited by two dimensional radiographs. Eleven canals were found in both mesial, distal and with the extra root on the lingual aspect of right mandibular first molar. Additional canals were found in all the roots. The location of the canal orifice was along the mesiopulpal line angle, linguopulpal line angle and distopulpal line angel of the pulp chamber. With this report, it can be concluded that there are occurrences of bizarre entities both in structure and number. These entities if left undiagnosed, may lead to failure of the treatment for sure.