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Contrasting patterns of caries profile and dental treatment in pupils of 16-18 years in South African ethnic groups.

Investigations on caries profile and state of teeth treatment were made on 3752 high school pupils of 16-18 years, namely, rural and urban Black, Indian, Colored (Eur-African-Malay) and White pupils. Rural Blacks had a low mean DMFT of about 2, and a caries-free prevalence of 52%. Of the few with affected teeth, 10% were extracted, none filled, and 90% decayed; i.e. restorative dental attention was virtually nil. Among English and Afrikaans pupils attending Government Schools, mean DMFT was about 10, and caries-free prevalence negligible. Of affected teeth, 13% were extracted, 59% filled and 28% decayed. The situations regarding the urban Black, Indian and Colored groups were intermediate. The Jewish pupils, well-circumstanced and attending private school, had a mean DMFT of 6.5, moreover 6% were caries-free. Of affected teeth, 1% had been extracted; 93% were filled, and only 6% remained decayed. Since it transpired that the diets of the three White subgroups, cariogenically, were much the same, the advantageous position of the Jewish pupils was judged to be due primarily to their excellent oral hygiene motivation, particularly their demonstrably regular visits to dentists.