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Morphometric study of teeth in age calculation

M Lopez Nicolas1, A Morales, A Luna

  • 1Department of Legal Medicine and Toxicology, University of Murcia, Spain.

The Journal of Forensic Odonto-Stomatology
|June 1, 1993
PubMed
Summary
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Tooth morphometric parameters like root transparency and dentinal tubule diameter aid age determination. However, individual variations limit their overall effectiveness for precise forensic age estimation.

Area of Science:

  • Forensic Anthropology
  • Dental Morphology

Background:

  • Accurate age estimation is crucial in forensic science.
  • Dental morphometric parameters are explored for their diagnostic utility in age determination.

Purpose of the Study:

  • To evaluate the diagnostic usefulness of specific tooth morphometric parameters for age determination.
  • To assess the reliability of root transparency and dentinal tubule diameter using image analysis.

Main Methods:

  • Examination of 173 central incisors (13-83 years) and 72 teeth (39-80 years).
  • Image analysis (IBAS system) of scanning electron microscopic images to measure root transparency and dentinal tubule diameter.
  • Multiple linear regression analyses were performed, excluding secondary dentine.

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Main Results:

  • Root transparency and dentinal tubule diameter were identified as the most reliable parameters.
  • Exclusion of secondary dentine did not improve the regression model's fit.
  • Precise measurement of these variables reduced the mean error compared to subjective estimates.

Conclusions:

  • Specific tooth morphometric parameters offer a more objective approach to age determination.
  • Individual variations, influenced by genetic factors and chewing habits, limit the effectiveness of these parameters for precise age estimation.