
Thorough knowledge of internal and external root canal morphology contribute to the successful root canal treatment. A mandibular molar having Radix Entomolaris (Additional lingual root) and Radix Paramolaris (Additional Buccal root) with two distal roots is an interesting example of anatomic variation. This paper describes 3 cases of each of mandibular 1st, 2nd and 3d molar with radix entomolaris.