Comparisons of dental XXXX between the rural community of Kuhmo in northeastern Finland and the city of Helsinki.

@entity2175 @entity1
The aim of the study was to check whether dental @entity2175 charts made in southern Finland can be used without modifications in other parts of the country. For this reason the dental @entity2175 of 90 @entity1 living in the sparsely populated areas of Kuhmo in northeastern Finland was compared with that of a larger sample of Helsinki @entity1 . Most of the Kuhmo @entity1 were 7.0-8.5 and 10.5-12.5 yr of age. The method of Demirjian and associates was used to estimate dental @entity2175 . The means of dental @entity2175 scores were greater in Kuhmo in most half-year groups in both sexes. The median dental @entity2175 scores of Kuhmo @entity1 were between the 50th and 84th percentile curves of Helsinki @entity1 . A referent of the same age and sex was chosen for each Kuhmo @entity1 from the Helsinki @entity1 . The paired t-test was based on the difference in dental age. The dental age of the Kuhmo @entity1 was higher (P less than 0.05). These findings suggest differences in dental @entity2175 within a fairly homogeneous population, which should be considered when national charts are used.
