Fusion and gemination are developmental anomalies of teeth that may require endodontic treatment. Fusion may cause various clinical problems related to esthetics, tooth spacing, and other periodontal complications. Additional diagnostic tools are required for the diagnosis and the treatment planning of fused tooth. The present case report describes a case of unilateral fusion of a supernumerary root to an upper permanent central incisor with large periapical lesion in which a conservative approach was used without extraction of supernumerary tooth and obturated with mineral trioxide aggregate to reach a favorable outcome.

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• Fusion of a Tooth with a Supernumerary Tooth: A Case Report and Literature Review of 35 Cases
  Tatsuya Akitomo, Satoru Kusaka, Momoko Usuda, Mariko Kametani, Ami Kaneki, Taku Nishimura, Masashi Ogawa, Chieko Mitsuhata, Ryota Nomura
  Children.2023; 11(1): 6.     CrossRef
• Approche multidisciplinaire d’un cas de fusion incisive centrale maxillaire avec un « talon cusp »
  Sonia Terbeche, Kheira Yousfi, Samia Saddat, Souad Larbi Messaoudi, Noureddine Ahmed Fouatih, G. Mer, O. Weissenbach
  Revue d'Orthopédie Dento-Faciale.2022; 56(2): 205.     CrossRef