Abstract
Spearman correlation coefficients between the number of emerged permanent teeth and RUS (TW2 method) skeletal maturity scores were calculated among 1412 boys and 1332 girls, aged 7-14 yr, divided into 3-month age groups. "Moving averages" are presented of the correlation coefficients for every four 3-month age groups at a time. The pattern of the correlations differed between the sexes. However, in general, weak associations were found (mean r = 0.15-0.16), but correlations were significant at the 1% level in 8.5-9.5-yr-old girls and around 12 yr in both sexes. It is argued that skeletal, rather than dental, maturity should be assessed in adopted non-European children of unknown chronologic age.
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