Space anomalies, missing permanent teeth and orthodontic treatment.
Statistical association of crowding and spacing with age, sex, orthodontic treatment and extractions finds a tendency for more maxillary posterior spacing in males and more lower anterior spacing in females. Extractions were also associated with spacing. No association was found between spacing and orthodontic treatment.
D000328:Adult; D000367:Age Factors; D003970:Diastema / Q000453:epidemiology; D005260:Female; D005387:Finland; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000453:epidemiology*; D009971:Orthodontics, Corrective; D012737:Sex Factors; D014081:Tooth Extraction