subject: Recording Enamel Rod Ends Patterns Using Acetate Peel Technique [print this page] Advancements in information technology over a decade are directed toward the development of various software applications for the purpose of analysis, storage, and comparison of various biometric measurements. For instance, various software applications are available to analyze finger prints like Sig ID biometric fingerprint software system, M2SYS fingerprint SDK software system, IdentiFi biometric identification system, Verifinger standard SDK, and the like. Verifinger standard SDK version 5.0 software was developed by Neurotechnologia in 1998, to compare and analyze finger prints. Liza et al. used this software for automated biometric analysis of Hunter Schreger bands in enamel for personal identification. In our earlier study, we used Verifinger standard SDK version 5.0 to analyze the enamel rod ends patterns (tooth prints) obtained using acetate peel technique.
As the software Verifinger standard SDK version 5.0 was primarily designed to analyze finger prints, the reliability and credibility of the software in analysis of tooth prints need to be verified. Hence, the present study was designed to analyze the reliability and sensitivity of automated biometrics system in analyzing enamel rod ends patterns.
Tooth prints are enamel rod ends 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 in analyzing tooth prints. In present study, enamel rod ends 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 ends 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 ends 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.
Teeth have been extensively used as a source of information in human identification, especially when soft tissue cannot provide reliable information, Enamel covering the crown of the tooth, is the hardest biological tissue and while highly mineralized, withstands both shearing and impact forces well. The undulating course of ameloblasts during amelogenesis results in the formation of a pattern by series of adjacent enamel rod ends. These patterns on the enamel surface are called as tooth prints. The study of enamel rod ends patterns on tooth surface is termed as ameloglyphics. These enamel rod ends patterns could be duplicated by various methods like acetate peel technique, rubber base impression, etc.
Verifinger standard SDK software being the software primarily designed to analyze finger prints, the reliability and credibility of the software in analysis of enamel rod patterns need to be questioned. The results of the present study, suggest that Verifinger could be used with considerable accuracy and reliability in analysis of enamel rod ends patterns obtained from a specific area on the tooth surface.
Hence, acetate peel technique with Verifinger standard SDK version 5.0 is a reliable technique in analysis of enamel rod ends 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 little difficult.
We manufacture clevis, ball jiont, rod ends, Nb-gj.com has a large number of strong technical staff, to provide customers with quality products.
