Studies on the Incidence and Cause of Dental Defects in Children

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Abstract
A group of 2211 white and Negro children of both sexes was investigated. 3891 2d deciduous molars and 3485 1st deciduous molars were studied. In the white boys and girls 41.8% of the 1st deciduous molars examined were found to be carious. In the Negro boys and girls a little over 29% of the 1st deciduous molars were found involved. Of the total number of 2037 2d deciduous molars studied in the white boys and girls, 51% had caries. The Negro boys and girls showed a lower incidence of such decayed teeth (42%). It seems clear that Negro children (male and female) are less affected by caries of these teeth. Geographical or climatic conditions as well as standards of living, diet, etc., seem to play no part in caries resistance.

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