Fluorescent identification of tooth-colored prosthetic materials by alternative light sources for forensic identification

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In postmortem dental charting for forensic identification it may be difficult to distinguish between indirect composite and porcelain because of their similar mechanical properties. Correct charting is required for definite positive identification. Identification of the brand of material as additional information is valuable and enhances the possibility of positive identification. This study aimed to develop an instant technique for identifying indirect, tooth coloured restorative materials using a forensic alternative light sourceof Polilight. The fluorescent emission spectrum of porcelain exhibited no peak emissions at 415nm, but did show brand specific or group specific peak emissions at 350nm. Some of the porcelain or resin brands could be definitely identified by a specific peak spectrum. The use of the Polilight shows great potential for identifying the prosthetic tooth-colored restoration materials.