Unilateral gemination of a maxillary first premolar: A case report

Hamid Mazaheri, Ramin Mosharraf


Gemination originates when one tooth bud attempts to split into two, resulting in a large bifid crown and usually a single root and root canal. This paper reports gemination of upper first premolar in a 34-year-old female patient, which is asymptomatic.


Bicuspid; Germination; Maxilla;Tooth Abnormalities


Muthukumar RS, Arunkumar S, Sadasiva K. Bilateral fusion of mandibular second premolar and supernumerary tooth: A rare case report. J Oral Maxillofac Pathol. 2012;16(1):128-30.

Gadimli C, Sari Z. Interdisciplinary treatment of a fused lower premolar with supernumerary tooth. Eur J Dent. 2011;5(3):349-53.

Grover PS, Lorton L. Gemination and twinning in the permanent dentition. Oral Surg Oral Med Oral Pathol. 1985;59(3):313-8.

Tsesis I, Steinbock N, Rosenberg E, Kaufman AY. Endodontic treatment of developmental anomalies in posterior teeth: treatment of geminated/fused teeth--report of two cases. Int Endod J. 2003;36(5):372-9.

Shah P, Chander JM, Noar J, Ashley PF. Management of ‘double teeth’ in children and adolescents. Int J Paediatr Dent. 2012;22(6):419-26.

Otero J, Dragstedt AN, Tuli SY, Kelly MN. Double teeth or twinning in primary dentition. Clin Pediatr (Phila). 2012;51(1):91-2.

Knezevic A, Travan S, Tarle Z, Sutalo J, Jankovic B, Ciglar I. Double tooth. Coll Antropol. 2002;26(2):667-72.

Levitas TC. Gemination, Fusion, Twinning and Concrescence. ASDC J Dent Child. 1965;32:93-100.

Rajesh Ebenezar A, Venkatesh A, Mary AV, Mohan AG. An unusual occurrence of bilaterally geminated mandibular second premolars resulting in premolar molarization: A case report. J Conserv Dent. 2013;16(6):582-4.

Nunes E, de Moraes IG, de Novaes PM, de Sousa SM. Bilateral fusion of mandibular second molars with supernumerary teeth: case report. Braz Dent J. 2002;13(2):137-41.

Nandini D, Deepak B, Selvamani M, Puneeth H. Diagnostic dilemma of a double tooth: a rare case report and review. Journal of clinical and diagnostic research: JCDR. 2014;8(1):271-2.

Mazumdar P, Das UK, Rahaman SM. Endodontic management of geminated tooth: a case report. International Journal of Scientific and Research Publications. 2013;3(2):1-4.

Pindborg JJ. Pathology of the dental hard tissues. 1970.

Ebenezar AR, Venkatesh A, Mary AV, Mohan AG. An unusual occurrence of bilaterally geminated mandibular second premolars resulting in premolar molarization: a case report. Journal of conservative dentistry: JCD. 2013;16(6):582-4.

Aguilo L, Gandia J, Cibrian R, Catala M. Primary double teeth. A retrospective clinical study of their morphological characteristics and associated anomalies. International Journal of Paediatric Dentistry. 1999;9(3):175-83.

Brook AH, Winter GB. Double teeth. A retrospective study of ‘geminated’ and ‘fused’ teeth in children. Br Dent J. 1970;129(3):123-30.

Li RW. Clinical variants in tooth number and crown form: a report of bilateral double teeth associated with a talon cusp. Dent Update. 2002;29(8):403-8.

de Siqueira VC, Braga TL, Martins MA, Raitz R, Martins MD. Dental fusion and dens evaginatus in the permanent dentition: literature review and clinical case report with conservative treatment. J Dent Child (Chic). 2004;71(1):69-72.

Chaudhry SI, Sprawson NJ, Howe L, Nairn RI. Dental twinning. Br Dent J. 1997;182(5):185-8.

Croll TP, Rains NJ, Chen E. Fusion and gemination in one dental arch: report of case. ASDC J Dent Child. 1981;48(4):297-9.

O Carroll M. Fusion and gemination in alternate dentitions. Oral Surg Oral Med Oral Pathol. 1990;69(5):655.

Hattab FN, Hazza’a AM. An unusual case of talon cusp on geminated tooth. J Can Dent Assoc. 2001;67(5):263-6.

Pearson AI, Willmot DR. Combined surgical and orthodontic treatment of bilaterial double teeth: a case report. Int J Paediatr Dent. 1995;5(1):43-7.

Full Text: PDF


  • There are currently no refbacks.

Index Copernicus Index Copernicus Google Scholar NISCAIR OpenJGateDOAJUlrichsWeb
System Developed By Stanford University Arizona State University Simon Fraser University Canadian Centre For Studies In Publishing University of British Columbia - Faculty of Education
W3C XHTML v1.0 Verified W3C verified Valid CSS v2.1 PHP5 Enabled CopyScape Protected Made On Mac Apache Enabled MySQL Powered
Published by Celesta Software Pvt Ltd