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Validation of dental radiographs for human identification
D F MacLean1, S L Kogon, L W Stitt
1Division of Oral Medicine and Radiology, Faculty of Dentistry, University of Western Ontario, London, Canada.
Journal of Forensic Sciences
|September 1, 1994
Summary
Forensic dental identification using bitewing radiographs is highly accurate, achieving 93% success. This method remains reliable even with radiographs taken up to fifteen years apart.
Area of Science:
- Forensic Odontology
- Radiology
- Biometrics
Background:
- Dental radiographs are crucial for human identification in forensic investigations.
- The reliability of visual comparison of dental bitewing radiographs over time is a key consideration.
Purpose of the Study:
- To evaluate the accuracy of visual comparison of dental bitewing radiographs for forensic identification.
- To assess the impact of varying observer experience and time intervals on identification accuracy.
Main Methods:
- Simulated forensic identification scenarios were used.
- Dental bitewing radiographs with time intervals of 1 to 15 years were analyzed.
- Observers with diverse experience levels performed visual comparisons.
Main Results:
- An overall accuracy of 93% was achieved in visual comparison of dental bitewing radiographs.
- The study assessed the impact of experience and time intervals on accuracy.
Conclusions:
- Visual comparison of dental bitewing radiographs is a highly accurate method for forensic identification.
- The method demonstrates robustness across different observer experience levels and significant time intervals between radiographs.