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.

Citations

Citations to this article as recorded by  

• 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

In dentistry, the term 'fusion' is used to describe a developmental disorder of dental hard tissues. In the permanent dentition, fusion of a normal tooth and a supernumerary tooth usually involves the incisors or canines. However, a few cases of fusion involving premolars have also been reported to date. We present a rare case in which fusion of the maxillary left second premolar and a supernumerary tooth in a 13-year-old girl was diagnosed using cone beam computed tomography (CBCT, Alphard-3030, Asahi Roentgen Ind. Co., Ltd.). The tooth was bicuspidized after routine nonsurgical root canal treatment, and the separated teeth underwent appropriate restoration procedures. The second premolar and supernumerary tooth remained asymptomatic without any signs of inflammation after a follow-up period of 9 years. Identification of anatomical anomalies is important for treatment in cases involving fusion with supernumerary tooth, and therefore the microscopic examinations and CBCT are essential for the diagnosis. Fused teeth can be effectively managed by the comprehensive treatment which includes both endodontic and periodontal procedures.

Citations

Citations to this article as recorded by  

• 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
• Malformed Teeth and Their Endodontic Implications
  Annapoorna Annapoorna, Manjunatha M, Shubhashini N, Swetha H. B.
  Journal of Evolution of Medical and Dental Sciences.2020; 9(04): 245.     CrossRef
• Endodontic management of central incisor associated with large periapical lesion and fused supernumerary root: a conservative approach
  Gautam P. Badole, Pratima R. Shenoi, Ameya Parlikar
  Restorative Dentistry & Endodontics.2018;[Epub]     CrossRef
• Common dental diseases in children and malocclusion
  Jing Zou, Mingmei Meng, Clarice S Law, Yale Rao, Xuedong Zhou
  International Journal of Oral Science.2018;[Epub]     CrossRef
• Endodontic Management of Dilacerated Maxillary Central Incisor fused to a Supernumerary Tooth using Cone Beam Computed Tomography: An Unusual Clinical Presentation
  Thilla S Vinothkumar, Deivanayagam Kandaswamy, Ganesh Arathi, Sathishkumar Ramkumar, Gnanasekaran Felsypremila
  The Journal of Contemporary Dental Practice.2017; 18(6): 522.     CrossRef
• Nonsurgical endodontic retreatment of fused teeth with transposition: a case report
  Miguel Agostinho Beco Pinto Cardoso, Rita Brandão Noites, Miguel André Duarte Martins, Manuel Pedro da Fonseca Paulo
  Restorative Dentistry & Endodontics.2016; 41(2): 148.     CrossRef