Negro-Caucasoid differences in permanent tooth emergence at a constant income level.
نویسندگان
چکیده
Three-thousand, eight-hundred and sixty-eight low-income American Negro boys and girls showed systematic permanent advancement in tooth emergence compared with 5788 low-income boys and girls of European ancestry. Further matched to within $160 per-capita yearly income, the Negro boys and girls evidenced a 0.30 standard deviation emergence advancement of non-uniform or “patterned” nature, with the greatest temporal difference for the mandibular lateral incisors (0.72473 S.D.) in both sexes.
منابع مشابه
Economic impact on tooth emergence.
As shown in nearly 10,000 Negro and White boys and girls between 4.5 and 16.5 years of age, poverty-level children (with an income-toneeds ratio of 1.0) tend to be delayed in permanent tooth emergence as compared with those approximating median per-capita income. For boys, a per-capita income difference of $2200 was associated with a 0.15 standard deviation difference in emergence timing of 28 ...
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ورودعنوان ژورنال:
- Archives of oral biology
دوره 18 5 شماره
صفحات -
تاریخ انتشار 1973