title: Hyperactive Dental Lamina in a 24-Year-old Female - A Case Report and Review of Literature.
abstract: An extra tooth to the normal formula of teeth sequence in any region of dental arch is regarded as Supernumerary teeth (ST). The reasons are still not clearly known, one of them being dichotomy of tooth bud, but the more accepted reason is the hyperactivity theory. Supernumerary teeth are present more in permanent dentition than in primary dentition and can present as a single entity or multiple, unilaterally or bilaterally, impacted or erupted, in either or both the dental arches. This article discusses the supernumerary teeth in detail with a case discussion of a non-syndromic 24-year-old girl, with six ST (bicuspids) present in all the four quadrants. In the mandible, ST's showed a classical clustered flower like presentation. The interesting feature in the presented case was the sequential orthopantomographs taken at various ages of the patient that showed continuous development of STs in all four quadrants, thus pointing to the theory of hyperactive dental lamina or atavism. An electronic search was conceded in PubMed, Cochrane Library and google scholar databases, and articles dated between December 1932 and December 2012 were selected to review the occurrence patterns of supernumerary teeth in non-syndromic cases.
authors.affiliation: Reader, Department of Pedodontics, DJ Dental College , Modinagar, Ghaziabad India .
authors.forename: Ashu
authors.initials: A
authors.lastname: Gupta
authors.affiliation: Reader, Department of Pedodontics, Krishnadevarya College of Dental Sciences , Banglore, India .
authors.forename: Priya
authors.initials: P
authors.lastname: Nagar
authors.affiliation: Consultant, Department of Oral and Maxillofacial Surgeon, Goa, India .
authors.forename: Rakshit Vijay Sinai
authors.initials: RV
authors.lastname: Khandeparker
authors.affiliation: Senior Lecturer, Department of Pedodontics, Maharaja Ganga Singh Dental College and Research Centre Sri Ganganagar, Rajasthan, India .
authors.forename: Deepti
authors.initials: D
authors.lastname: Munjal
authors.affiliation: Senior Lecturer, Department of Pedodontics, Maharaja Ganga Singh Dental College and Research Centre Sri Ganganagar, Rajasthan, India .
authors.forename: Harsimran Singh
authors.initials: HS
authors.lastname: Sethi
keywords: Atavism; Hyperdontia; Supernumerary teeth; Tooth bud splitting