title: Twin tooth on either side: a case report of bilateral gemination.
abstract: Gemination is an anomaly caused by a single tooth germ that attempted to divide during its development, resulting in a bifid crown. They are found more frequently in the primary than in the permanent dentition unilaterally, but bilateral gemination is very rare. It is caused by complex interactions among a variety of genetic and environmental factors. This developmental anomaly may cause clinical problems including esthetic impairment, periodontal problems, caries, and tooth crowding. Here, we report a unique case of bilateral gemination of permanent maxillary central incisors.
authors.affiliation: Department of Oral Medicine and Radiology, Yenepoya Dental College, Yenepoya University, Deralakatte, Nithyanandanagar Post, Mangalore, Karnataka, India.
authors.forename: Pk
authors.initials: P
authors.lastname: Rao
authors.forename: Km
authors.initials: K
authors.lastname: Veena
authors.forename: L
authors.initials: L
authors.lastname: Chatra
authors.forename: P
authors.initials: P
authors.lastname: Shenai
keywords: Bifid crown; Bilateral gemination; Double teeth; Twin tooth
references.citation: Med Oral Patol Oral Cir Bucal. 2008 Jan 01;13(1):E77-80
references.pmid: 18167487
references.citation: J Can Dent Assoc. 2001 May;67(5):263-6
references.pmid: 11398389
references.citation: J Periodontol. 1985 Jan;56(1):21-4
references.pmid: 3856006
references.citation: Am J Orthod Dentofacial Orthop. 2007 Apr;131(4):510-4
references.pmid: 17418718
references.citation: Eur J Dent. 2007 Jul;1(3):188-91
references.pmid: 19212565
references.citation: Int J Paediatr Dent. 1999 Sep;9(3):175-83
references.pmid: 10815574
references.citation: ASDC J Dent Child. 1999 Jul-Aug;66(4):280-2, 229
references.pmid: 10529873
references.citation: J Dent Child (Chic). 2004 Jan-Apr;71(1):80-6
references.pmid: 15272664