The cusps of Carabelli: frequency, distribution, size and clinical significance in Nigeria

  • Olubode O. Falomo Department of Restorative Dentistry, College of Medicine, University of Ibadan, Ibadan, Nigeria
Keywords: Cusp of Carabelli, Maxillary molars, Bilateralim, Caries


In a population of 2,604 Nigerians, 454 (17.43%) showed the presence of the cusp of carabelli in maxillary molars. Bilateralism in the upper first molars accounted for 70.71% of the total, while bilateralism involving the upper first and second molars simultaneously accounted for only 1.98% of the total. Unilateralism in the upper first molars accounted for 25.99%.

There was no sexual dimorphism in its occurrence, but great variations were observed in the size of this structure. Its frequency of occurrence is compared with that of other population while its clinical significance is discussed.

Keywords:Cusp of Carabelli, Maxillary molars, Bilateralim, Caries.


Chez une populaton de 2604 nigerians, 454 (17.43%) ont montre la prsence du cuspide de Carabelli dans les molaires maxillaries. Le bilaterisme dans les prmieres molaires superieures comptient pour 70,71% de l'ensemble, alors que le bilateisme tenant compt des premieres it secondes molaires superieures simultaneusement comptaient seulement pour 1,98% du total. L'unilateisme dans les premieres molaires superiures comtaient pour 25,99%.

Il n'y avait aucun dimorphisme seuel dans cet evenement, mais de grandes variations ont ete observees dans la taille de cette structure. La frequence de cet evenement est comparee a celle des autres populations alors que la signification clinique est discutee.

West African Journal of Medicine Vol.21(4) 2002: 322-324

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eISSN: 0189-160X