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A microscopic comparison of fresh and burned bone
1Human Identification Laboratory, Arizona State Museum, University of Arizona, Tucson.
Journal of Forensic Sciences
|July 1, 1992
Summary
Burned bone samples show significant microstructural shrinkage, complicating age estimation in forensic science. This study contradicts previous findings of element increases after burning.
Area of Science:
- Forensic Anthropology
- Skeletal Biology
Background:
- Microstructural analysis of human bone is a validated method for age estimation in forensic cases.
- Burned bone samples present analytical challenges due to potential microstructural alterations.
Purpose of the Study:
- To investigate the effects of burning on the microstructure of human femora.
- To compare findings with previous research on burned bone microstructures.
Main Methods:
- Comparison of fresh and burned ground thin sections from midshaft femora.
- Analysis of samples from eight cadavers of known age and sex.
Main Results:
- Significant shrinkage of microstructural elements was observed in burned bone samples.
- This finding contrasts with prior studies reporting an increase in microstructural elements after burning.
Conclusions:
- The burning process causes significant microstructural changes in human bone, specifically shrinkage.
- These results necessitate a re-evaluation of age estimation techniques using burned bone in forensic science.
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