West Afr J Med. 2003 Jan-Mar;22(1):63-6. Related Articles, Links Comparing permanent tooth sizes of Nigerians and American Negroes. Adeyemi TA, Isiekwe MC. Department of Preventive Dentistry UCH, Ibadan. A study of two hundred and fifty secondary school children (125 males and 125 females) in Ibadan metropolis was done, to determine mean tooth sizes for the population. The data obtained in Nigerians were then compared with a similar data obtained in American Negros by Richardson and Malhotra (1975). This was done on computer using the Student T-test and taking a probability value greater than 1% (P>0.01) as not significant. The results showed that there was no significant difference in tooth sizes of Nigerians and American Negroes. This could be genetically linked, signifying that Black Americans may have originated from Africa.
