Faculty of Health Sciences

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    Hypocalcification and hypoplasia in permanent teeth of children from different ethnic groups in South Africa assessed with a new index
    (1989) Hargreaves, J. A.; Cleaton-Jones, P. E.; Williams, S. D. L.
    A new descriptive index, the HHI (hypocalcification-hypoplasia index), is described for comparing enamel defects in groups of people. The index was used in a study completed in 1986, in which 1251 11-year-old children from different ethnic groups resident in South Africa were examined: 210 rural black, 203 urban black, 206 urban colored, 426 urban Indian, and 206 urban white. The index can be used as a screening examination, and the results from these different ethnic groups are presented.