Rare Occurrence of ‘Tuberculum Sextum’ (Cusp 6 or Entoconulid) in the Permanent Mandibular First Molar-A Case Report

Authors: Nagaveni NB*

DOI: 10.23880/oajds-16000393

Volume 9, Issue 1

Abstract

Morphology of the human tooth with variation in cusp numbers and patterns are of great interest to the anthropologist, morphologist, and the clinical dentist. Very rarely an extra cusp known as Cusp 6 can be seen in the permanent or primary mandibular molars particularly the first molars. Cusp 6 is a supernumerary cusp seen at the distal margin of the crown, lingual to the distobuccal cusp. Cusp 6 is also known by other names like “Tuberculum Sextum” or “Entoconulid” which are anthropologic terms as evident from the existing literature. The present article reports the occurrence of such a rare cusp in the permanent mandibular first molar of an 8-year-old Indian boy.

Keywords: Cusp 6; Cusp pattern; Entoconulid; Permanent Mandibular Molars; Tuberculum Sextum

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