[Prolonged retention of the primary teeth].
D002648:Child; D002675:Child, Preschool; D006801:Humans; D012391:Root Resorption / Q000150:complications; D014080:Tooth Exfoliation / Q000503:physiopathology*; D014094:Tooth, Deciduous; D014097:Tooth, Unerupted / Q000209:etiology*