en Other Other Case Report Case Report <div style="text-align: justify;">Permanent mandibular third molars are known to have two distinct mesial and distal morphological roots. However, there might be some discrepancies in their roots number. An additional root located mesiobuccally is called radix paramolaris (RP) while the distolingually placed one is called radix entomolaris (RE). Worldwide, RE is more common than RP. The pathogenesis of the third root occurrence in the mandibular molar is still hazy. Unawareness of the number, position, and morphology of the roots of mandibular third molars might greatly impact the extraction of this tooth which could result in serious surgical morbidity. Therefore, the aim of this paper is to present a rare case of a Nigerian patient with three rooted mandibular third molar.</div> Permanent mandibular third molar, Radix entomoralis, Additional third root, Root morphological variation, three rooted mandibular molar 33 36 http://ibbj.org/browse.php?a_code=A-10-338-1&slc_lang=en&sid=1 Labbo-Jadadi Suwaiba suby237@yahoo.com 10031947532846003888 10031947532846003888 No Department of Surgery, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria. Olanrewaju Abdurrazaq Taiwo droataiwo@yahoo.com 10031947532846003889 10031947532846003889 Yes Department of Surgery, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria. Adaralegbe Adekunle Abayomi kadraxkyle@gmail.com 10031947532846003890 10031947532846003890 No Department of Surgery, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria. Saheed Abioudun Olatunji olatunjiad10@yahoo.com 10031947532846003891 10031947532846003891 No Department of Surgery, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria. Ibikunle Adebayo Aremu adebayoibikunle@yahoo.com 10031947532846003892 10031947532846003892 No Department of Surgery, College of Health Sciences, Usmanu Danfodiyo University, Sokoto, Nigeria.