Non surgical repair of iatrogenic furcal perforation of radix entomolaris

Radix entomolaris (RE) is a rare tooth macrostructure with a prevalence as low as 0.2% in Indian population. The term is used to describe an additional third root located distolingually inmandibular molars, mainly first molars. Apart from its role as a genetic marker, its presence has clinical significance. Several modifications during radiographic interpretation, access cavity preparation and cleaning and shaping are required to preclude procedural mishaps during endodontic management. Iatrogenic perforations occur in approximately 2%e12% of endodontically treated teeth. Anatomic variations like RE can significantly contribute to its incidence due to inadequate knowledge or skills of a clinician.