title: Supernumerary teeth vary depending on gender.
abstract: The presence of supernumerary teeth (ST) is a dental developmental anomaly of patterning and morphogenesis. Its variability of morphology, location and developmental timing can shed light on its etiology. In this work we report ST patterns. Orthopantomograms of 1,166 pediatric subjects were examined and the morphology, location and timing of the formation of ST were determined. The frequency of supernumerary teeth in the studied population was 2.3% (n = 27). Twenty-five subjects presented one ST. Maxilla midline was the most commonly affected region (nine cases). We noted high incidence of conical morphology in the midline region. Only teeth with tuberculate morphology presented delayed formation. ST in the midline region occurred more often in males whereas ST in the incisor region were more common in females. In conclusion, ST patterns vary depending on gender.
authors.affiliation: Biology Institute, Clinical Research Unit, Fluminense Federal University, Niterói, RJ, Brazil.
authors.forename: Erika Calvano
authors.initials: EC
authors.lastname: Küchler
authors.forename: Adriana Gomes da
authors.initials: AG
authors.lastname: Costa
authors.forename: Marcelo de Castro
authors.initials: Mde C
authors.lastname: Costa
authors.forename: Alexandre Rezende
authors.initials: AR
authors.lastname: Vieira
authors.forename: José Mauro
authors.initials: JM
authors.lastname: Granjeiro
mesh_terms: D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D005260:Female; D006801:Humans; D015994:Incidence; D008297:Male; D016017:Odds Ratio; D011862:Radiography, Panoramic; D017678:Sex Distribution; D012737:Sex Factors; D014096:Tooth, Supernumerary / Q000000981:diagnostic imaging / Q000453:epidemiology*