Prevalence of the Carabelli trait in Saudi Arabian children.

This study was carried out to evaluate the prevalence of trait of Carabelli in Saudi Arabian children. 250 children, aged 7 to 10 years were examined. The criterion of inclusion was caries free maxillary second deciduous and first permanent molars. The prevalence of the trait was 58.7% with almost similar distribution between males and females. The tubercular variety was the commonest type, which was significantly more in males than females. The frequency of the trait was similar to that of Malaysians but less than for other population groups.