Radix entomolaris in mandibular Second molar: A rare case report

Radix entomolaris (RE) is a common variation present in mandibular first molars, in which on the ligual aspect we can find an extra root. But it’s extremely rare to find an additional root in mandibular second molars. So understanding and being aware of this uncommon variant, helps to do endodontic therapy in a better way. Prognosis of mandibular molars with this root canal morphology will depend on an accurate diagnosis and careful application of clinical endodontic skill. This case report discusses endodontic management of one such rare case with RE in mandibular second molar. Keywords: Radix entomolaris, Mandibular second molar, Root canal treatment