title: Study on supernumerary teeth in the maxillary anterior area in children. 1. Clinical analysis.
abstract: This is a study of supernumerary teeth in the maxillary anterior area in children. More than 60,000 child patients were examined. The 842 supernumerary teeth in the maxillary anterior area, found in a total of 682 children, were analyzed clinically. The incidence of supernumerary teeth was 1.12%. The male-female ratio was 3 to 1. Supernumerary teeth found were single and multiple types, with a ratio of 3 to 1. The eruption direction was normal (51.2%), inverted (36.2%) or horizontal (7.6%). Approximately 65% were found impacted in the maxilla.
authors.forename: K
authors.initials: K
authors.lastname: Kurosu
authors.forename: H
authors.initials: H
authors.lastname: Watanabe
authors.forename: T
authors.initials: T
authors.lastname: Tsuchiya
authors.forename: Y
authors.initials: Y
authors.lastname: Kawai
mesh_terms: D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003481:Cuspid; D003818:Dentition, Mixed; D005260:Female; D006801:Humans; D015994:Incidence; D007180:Incisor; D007564:Japan / Q000453:epidemiology; D008297:Male; D008437:Maxilla; D012737:Sex Factors; D014078:Tooth Eruption; D014094:Tooth, Deciduous; D014096:Tooth, Supernumerary / Q000453:epidemiology*