Third molar development in the estimation of chronologic age in American blacks as compared with whites

Jane A. Blankenship, Harry H. Mincer, Kenneth Anderson, Marjorie Woods, Eddie L. Burton

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Third molar (M3) development determined from dental radiographs in American blacks (African Americans; n=637) aged 14-24 years was contrasted against American whites (n=563) from a previous study using the method of Demirjian et al. Differences were assessed using descriptive statistics and the parametric proportional hazards model. For each developmental stage, the probability of an individual being at least 18 years old was evaluated. As in other M3 studies, there were highly significant modal differences, but the age ranges at each stage overlapped considerably. Black-white differences were highly significant with developmental stages occurring in blacks a year or so earlier. Gender differences also varied significantly, both with increasing age and between races. The empirical likelihood that an African American male with fully developed M3's is at least 18 years old is 93% and that for African American female is 84%. Corresponding risks for whites are 90% and 93%.

Original languageEnglish (US)
Pages (from-to)428-433
Number of pages6
JournalJournal of Forensic Sciences
Volume52
Issue number2
DOIs
StatePublished - Mar 1 2007

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Third Molar
African Americans
descriptive statistics
Proportional Hazards Models
gender-specific factors
Tooth
American

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Law

Cite this

Third molar development in the estimation of chronologic age in American blacks as compared with whites. / Blankenship, Jane A.; Mincer, Harry H.; Anderson, Kenneth; Woods, Marjorie; Burton, Eddie L.

In: Journal of Forensic Sciences, Vol. 52, No. 2, 01.03.2007, p. 428-433.

Research output: Contribution to journalArticle

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