Radix Entomolaris ? A Case Report

During Root canal treatment if the dentist fails to identify any root canal, it leads to endodontic failure, particularly in teeth with anatomical variation in the form of extra roots or canals. Permanent mandibular firs molars usually have 2 roots which are mesial& distal. The mesial root usually has 2 root canals& distal root have 1 root canal. However, radix entomolaris (RE), an anatomical variant of permanent mandibular first molar, is characterized by the presence of additional or extra distolingual root. The prevalence of radix entomolaris in permanent mandibular first molars differs signifi cantly with race but found to be very low among the Indian population. This case report is about the radiographic identification and endodontic management of radix entomolaris in a mandibular right first molar.