Cementum annulation and age determination in Homo sapiens. II. Estimates and accuracy

K. Condon, D. K. Charles, J. M. Cheverud, Jane Buikstra

Research output: Contribution to journalArticle

71 Citations (Scopus)

Abstract

The cementum annulation aging technique was evaluated in a sample of 80 clinically extracted premolars (age range 11-70 years). Demineralized thin sections (7 μm) stained with hematoxylin were used. The correlation (r) between age and adjusted count (number of annulations added to age of tooth eruption) was 0.78 for the entire sample (N = 73) and 0.86 for a subsample in which teeth with periodontal disease were excluded (N = 55). Standard error of the estimates ranged from 4.7 to 9.7 years depending on sex and health status of the tooth. The technique provided significantly better estimates for females than for males. The overall inaccuracy (mean absolute error) of the technique was 6.0 years, with a bias (mean error) of 0.26 years. Reduced major axis regression of adjusted count on age produced a slope of 0.797 for the entire sample and 0.889 for the nonperiodontal disease subsample. These slopes are consistent with a hypothesis of annual deposition of cementum rings given a decrease in cementogenesis with increasing age.

Original languageEnglish (US)
Pages (from-to)321-330
Number of pages10
JournalAmerican Journal of Physical Anthropology
Volume71
Issue number3
StatePublished - 1986
Externally publishedYes

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Dental Cementum
age determination
Cementogenesis
Tooth
Tooth Eruption
Bicuspid
Periodontal Diseases
Hematoxylin
teeth
Health Status
Disease
health status
sampling
methodology
Homo sapiens
regression
gender
trend

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Anthropology

Cite this

Cementum annulation and age determination in Homo sapiens. II. Estimates and accuracy. / Condon, K.; Charles, D. K.; Cheverud, J. M.; Buikstra, Jane.

In: American Journal of Physical Anthropology, Vol. 71, No. 3, 1986, p. 321-330.

Research output: Contribution to journalArticle

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