Journal of Oral Science Research ›› 2026, Vol. 42 ›› Issue (2): 162-164.DOI: 10.13701/j.cnki.kqyxyj.2026.02.014

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Rare Supernumerary Cusp on Buccal Side of Maxillary Second Molar: A Case Report

Zelalai·ADILI, SONG Fuxiang*   

  1. School and Hospital of Stomatology, Lanzhou University, Lanzhou 730000, China
  • Received:2025-03-31 Published:2026-02-28

Abstract: Supernumerary cusps are the abnormal morphological development of teeth caused by different factors during the development of teeth. In this paper, a case of rare supernumerary cusp on the buccal side of the right maxillary second molar was diagnosed by clinical general examination and cone beam computer tomography (CBCT). By reviewing the relevant literature, the mechanism, differential diagnosis, and the influence on clinical diagnosis and treatment were analyzed and discussed, so as to improve the clinical workers ' understanding of the diagnosis and treatment of supernumerary cusp deformity teeth.

Key words: supernumerary cusps, abnormal tooth morphology, maxillary second molar, cone beam computer tomography