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Updated: Apr 27, 2026
07:57
Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
Published on: August 15, 2018
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Human age estimation from tooth cementum and dentin.
Priya Gupta1, Harshaminder Kaur2, Madhu Shankari G S3
1Senior Lecturer, Department of Oral and Maxillofacial Pathology, Luxmi Bai Institute of Dental Sciences and Hospital , Patiala, Punjab, India .
Journal of Clinical and Diagnostic Research : JCDR
|June 25, 2014
Summary
Tooth Cementum Annulations (TCA) and secondary dentin thickness are reliable indicators for human age estimation. Counting cemental lines and measuring dentin provides a moderately accurate method for forensic age assessment.
Area of Science:
- Forensic Anthropology
- Dental Histology
Background:
- Human age estimation is crucial in forensic science.
- Tooth cementum annulations (TCA) offer a reliable method for age calculation due to tooth durability.
- TCA may be more dependable than other skeletal traits for estimating adult age.
Purpose of the Study:
- To investigate the correlation between age and the number of incremental lines in human cementum.
- To examine the relationship between age and the thickness of secondary dentin.
Main Methods:
- A study involving 100 extracted human teeth from individuals aged 25-60.
- Longitudinal ground sections were prepared and examined, excluding teeth with carious lesions.
- Pearson's correlation coefficient and ANOVA were used for statistical analysis.
Main Results:
- A strong positive correlation was observed between age estimated via cemental lines/secondary dentin and actual age.
- The increase in secondary dentin thickness across different age groups was not statistically significant.
Conclusions:
- Human teeth exhibit countable cemental annulations.
- Quantifying cementum annuli provides a moderately reliable method for human age estimation.
- Increasing secondary dentin thickness also serves as an indicator of an individual's age.
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