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J Forensic Sci ; 49(4): 787-90, 2004 Jul.
Article in English | MEDLINE | ID: mdl-15317195

ABSTRACT

To correlate dental age with an individual's chronological age based on the calculated volume ratio of pulp versus tooth volume measured, an X-ray microfocus computed tomography unit (microCT) with 25 microm spatial resolution was used to non-destructively scan 43 extracted single root teeth of 25 individuals with well-known chronological age. Custom-made analysis software was used by two examiners to obtain numerical values for pulpal and tooth volume. The ratio of both was calculated and statistically processed. No significant intra- or inter-examiner differences were found. In fact, a very strong concordance correlation coefficient was found. Linear regression analysis showed a coefficient of determination (r) of 0.31 which suggests that there is a rather weak correlation between the volume ratio of pulp versus tooth and biological age. Although rather time consuming, this technique shows promising results for dental age estimation in a non-destructive manner using X-ray microfocus computed tomography.


Subject(s)
Age Determination by Teeth/methods , Dental Pulp/diagnostic imaging , Forensic Dentistry/methods , Tomography, X-Ray Computed/methods , Tooth/diagnostic imaging , Adult , Aged , Female , Humans , Linear Models , Male , Middle Aged , Odontometry , Pilot Projects , Regression Analysis
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