Anomaly

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Anomaly

An unusual or unrepeatable event. For example, a stock index inexplicably rising 20% in a week during a bear market may constitute an anomaly.
References in periodicals archive ?
In previous studies, Uslu et al3 showed that tooth agenesis was the most commonly found dental anomaly in orthodontic patients.
Distribution of children with dental anomalies according to gender Dental anomaly Male Female Total (% prevalence) Congenitally missing teeth 20 28 48 (0.52%) Supernumerary 10 15 25 (0.27%) Molar-incisor 11 12 23 (0.25%) hypomineralization Turner hypoplasia 8 6 14 (0.1%) Fluorosis 7 4 11 (0.1%) Odontoma 4 6 10 (0.1%) Fusion 5 4 9 (0.09%) Gemination 3 3 6 (0.06%) Amelogenesis imperfecta 3 2 5 (0.05%) Dens invaginatus 1 2 3 (0.03%) Talon cusp 1 1 2 (0.02%) Taurodontism 2 - 2 (0.02%) Macrodontia - 2 2 (0.02%) Dentinogenesis imperfecta 1 1 2 (0.02%) Dilaceration 1 1 2 (0.02%) Ectopic eruption - 1 1 (0.01%) Microdontia - 1 1 (0.01%)
Dental fusion, also called Sinodonty, is a dental anomaly which is the union of two tooth germs, which may happen in any of this-god of odontogenesis from the dental lamina.
Macrodontia (megalodontia, megadontia) is a rare dental anomaly. (1) The term refers exclusively to teeth that are physically bigger than usual and must not be used to refer to teeth that are altered by either fusion or germination.
Microdontia is a dental anomaly that refers to teeth with reduced dimensions, but normal shape.
Prevalence of several dental anomalies have been studied by different researchers throughout the world18,19 and within these studies mandibular premolars hold the significance for exhibiting a vast array of anomalies and developmental disturbances such as agenesis,19 impaction14 macrodontia20 and aberrations in root and canal morphology.21-24 MnP-TSD is a rare dental anomaly which has been reported by very few authors.
Gemination is considered a rare developmental dental anomaly affecting the morphology of teeth.
Facial Talon Cusp on Permanent Maxillary Canine: A Rare Dental Anomaly. Eur J Gen Dent 2013; 3:324-327.
Labial talon cusp on maxillary central incisors: a rare developmental dental anomaly. Coll Antropol 2005; 29(1): 227-231.
Children with ectopic eruption were significantly more likely to have at least one additional dental anomaly than was the case for the control group (60% versus 25%).