title: Double formation of teeth.
authors.forename: E M
authors.initials: EM
authors.lastname: Beyer-Olsen
authors.forename: B
authors.initials: B
authors.lastname: Hurlen
authors.forename: D
authors.initials: D
authors.lastname: Humerfelt
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D009664:Norway; D014071:Tooth Abnormalities / Q000145:classification / Q000453:epidemiology*; D014094:Tooth, Deciduous / Q000002:abnormalities