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Timing of primary tooth emergence among U.S. racial and ethnic groups
Author(s) -
Warren John J.,
Fontana Margherita,
Blanchette Derek R.,
Dawson Deborah V.,
Drake David R.,
Levy Steven M.,
Kolker Justine L.,
Phipps Kathy R.
Publication year - 2016
Publication title -
journal of public health dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 63
eISSN - 1752-7325
pISSN - 0022-4006
DOI - 10.1111/jphd.12154
Subject(s) - ethnic group , demography , racial group , white (mutation) , medicine , racial differences , longitudinal study , significant difference , south carolina , gerontology , dentistry , biology , biochemistry , public administration , pathology , sociology , anthropology , political science , gene
Objectives To compare timing of tooth emergence among groups of American Indian (AI), Black and White children in the United States at 12 months of age. Methods Data were from two sources – a longitudinal study of a Northern Plains tribal community and a study with sites in Indiana, Iowa and North Carolina. For the Northern Plains study, all children ( n = 223) were American Indian, while for the multisite study, children ( n = 320) were from diverse racial groups. Analyses were limited to data from examinations conducted within 30 days of the child's first birthday. Results AI children had significantly more teeth present (Mean: 7.8, Median: 8.0) than did Whites (4.4, 4.0, P < 0.001) or Blacks (4.5, 4.0, P < 0.001). No significant differences were detected between Black and White children ( P = 0.58). There was no significant sex difference overall or within any of the racial groups. Conclusions Tooth emergence occurs at a younger age for AI children than it does for contemporary White or Black children in the United States.