Supernumerary Teeth: A Retrospective Cross-Sectional Study from Palestine

Epidemiology of Supernumerary Teeth in 5000 Radiography Films: Investigation of Patients Referring to the Clinics of Ardabil in 2015–2020

“…According to the reports presented in the literature, the frequency of supernumerary teeth in different populations was reported between 0.5% and 5.3% in permanent tooth and between 0.2% and 0.8% in deciduous teeth [ 1 , 7 , 8 ]. Amini et al (2013) in Tehran reported the prevalence of supernumerary tooth as 0.72% [ 17 ], Saurabh Singh et al (2019) in northern Malaysia reported it as 1.05% [ 18 ], Demiriz et al (2015) in Turkey reported it as 2.14% [ 19 ], and 1.6%, 0.86%, and 1.05% in Nepal [ 20 ], Palestine [ 21 ], and Madrid [ 22 ], respectively. Variation in prevalence among populations can be attributed to racial factors, sampling method, differences in sample size, age of subjects, diagnostic tools, and selection of individuals from medical centers [ 23 ].…”

Hyperdontia: Exploring the Developmental Abnormality

“…Supernumerary lateral incisors occur more frequently in the maxilla than in the mandible [13,36], and the majority occur unilaterally [1,26,33,37,38], erupted [1,25,33,38], and of the supplemental type [1,10,33,38,39]. Supernumerary lateral incisors are more frequently observed in males [1,25,33], although some studies have report them occurring more frequently in females [10] , and sometimes equally [36,37]. Supernumerary lateral incisors are smaller than the adjacent normal lateral incisors, whereas the normal lateral incisors adjacent to supernumerary ones are smaller than the contralateral incisors [36].…”

“…Andrei et al reported the case of an impacted unilateral supernumerary lateral incisor in a 5-year-old female [41]. The prevalence of supernumerary lateral incisors has been described to occur within the range of 0.05-1.59% [1,10,25,26,33,37,38,42].…”

“…4). Studies report that 57-90% of all detected supernumerary premolars from various studies were mandibular [8,1,38,45,[51][52][53][54] and are the most common supernumerary teeth in the mandible [45,47,53]. Still, the prevalence of supernumerary teeth occurring in the mandibular premolar region is quite low [55].…”

“…Anomalies resulting in a variation in the number of teeth include hyperdontia, a dental anomaly in which supernumerary teeth are formed in excess of the normal number. The incidence of hyperdontia is quite rare and falls in the range of 0.04/2.7% [1][2][3][4][5][6][7][8][9] with a well reported male predilection [1,4,[9][10][11][12]. Supernumerary teeth may erupt normally, remain impacted, appear inverted, or assume an ectopic position or an abnormal path of eruption.…”