Complete Bilateral Gemination of Maxillary Incisors with Separate Root Canals

Abstract

Developmental anomalies in the hard tissue are seen frequently in dental practice. Gemination and fusion are the most commonly encountered anomalies, and distinction between the two is always challenging. Gemination, also called double tooth, is an anomaly exhibiting two joined crowns and usually a single root. It represents an incomplete attempt of a single tooth germ to split. It is considered multifactorial in etiology, with genetic and environmental causes. This paper discusses a rare example of bilateral gemination (prevalence 0.04%) of maxillary central incisors with completely separated roots. Multidisciplinary care ensured a successful esthetic and functional outcome.

Geminated Maxillary Lateral Incisor with Two Root Canals

“…Gemination is less prevalent in the permanent dentition than in the primary dentition, affecting mainly maxillary incisors and canines [29]. The incidence of gemination in permanent teeth has been shown to range from 0.1% to 1% [30].…”

SOX2 anophthalmia syndrome and dental anomalies

“…Clinical presentation of geminated teeth varies from a minor notch in the incisal edge to the appearance of almost two separate crowns and usually with a single root and root canal [Shokri et al, ]. Bilateral geminated tooth is an extremely rare anomaly with an occurrence in the general population of 0.01–0.04% in primary dentition and of 0.02–0.05% in permanent dentition [Mahendra et al, ]. Dental gemination is the result of a developmental aberration of both the mesoderm and the ectodermal during the morpho‐differentiation of the tooth germ [Shokri et al, ].…”

Multiple Geminated Supernumerary Premolars: A Rare Case Report

“…To the best of the authors' knowledge, there is no syndrome or condition associated with multiple geminated teeth (either anterior or premolars). A geminated tooth in anterior region may blemish aesthetics but the groove can also cause caries and a high plaque accumulation [ 5 ]. An impacted supernumerary tooth can also lead to complications like resorption of adjacent teeth, cystic spaces, and delayed eruption [ 4 ].…”

“…It is also observed with an equal gender predilection. Unilateral gemination has a prevalence rate of 0.5% and 0.1% in deciduous and permanent dentition, respectively, whereas bilateral occurrence is seen in 0.01% to 0.04% in primary dentition and in 0.02% to 0.05% in permanent dentition [ 5 ].…”