Journal of Forensic Dental Sciences
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ORIGINAL ARTICLE
Year : 2009  |  Volume : 1  |  Issue : 1  |  Page : 32-36

Reliability of automated biometrics in the analysis of enamel rod end patterns


1 Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College and Hospital, Chennai, India
2 Brainware Biosolutions Ltd, Chennai, India

Correspondence Address:
K Manjunath
Department of Oral and Maxillofacial Pathology, Meenakshi Ammal Dental College and Hospital, Alapakkam Main Road, Maduravoyal, Chennai - 600 095
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0974-2948.50887

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Tooth prints are enamel rod end patterns on the tooth surface. These patterns are unique to an individual tooth of same individual and different individuals. The aim of this study was to analyze the reliability and sensitivity of an automated biometrics software (Verifinger standard SDK version 5.0) in analyzing tooth prints. In present study, enamel rod end patterns were obtained three times from a specific area on the labial surface of ten extracted teeth using acetate peel technique. The acetate peels were subjected to analysis with Verifinger standard SDK version 5.0 software to obtain the enamel rod end patterns (tooth prints) and respective minutiae scores for each tooth print. The minutiae scores obtained for each tooth print was subjected to statistical analysis using Cronbach's test for reliability. In the present study, it was found that Verifinger software was able to identify duplicate records of the same area of a same tooth with the original records stored on the database of the software. Comparison of the minutiae scores using Cronbach's test also showed that there was no significant difference in the minutiae scores obtained (>0.6). Hence, acetate peel technique with Verifinger standard SDK version 5.0 is a reliable technique in analysis of enamel rod end patterns, and as a forensic tool in personal identification. But, further studies are needed to verify the reliability to this technique in a clinical setting, as obtaining an acetate peel record from the same area of the tooth in-vivo, is difficult.


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