An orthopantomography study of prevalence of impacted teeth

Department of Oral Surgery, Institute of Dentistry, University of Turku, Turku, Finland
International Journal of Oral Surgery 01/1972; DOI: 10.1016/S0300-9785(72)80001-2

ABSTRACT Orthopantomograms of a total of 4,063 individuals were included in the study and were taken from patients of the Institute of Dentistry, University of Turku. Impacted teeth were found in 14.1% of the patients. The teeth most frequently impacted were the third molars, 76.1%, and of these, no difference between the maxilla and mandible was observed. No difference in sex in the prevalence of third molars was observed. The prevalence of impacted maxillary cuspids was higher in females than in males. When the prevalence of the third molars in different age-groups was studied, a decrease was found with an increase in age. The prevalence of impacted cuspids was approximately the same in different age-groups.

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