Forensic Science International

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Forensic Science International Forensic applications: Fluorescence properties of tooth-coloured restorative materials using a fluorescence DSLR camera Ramya Kiran, Laurence J. Walsh, Alexander Forrest, Marc Tennant, James Chapman Forensic Science International Volume 273, Pages 20-28 (April 2017) DOI: 10.1016/j.forsciint.2017.01.022 Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 1 Schematic representation of camera, light source and samples in the laboratory. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 2 (A) Images obtained using Canon EOS camera, following irradiation with UV-A/violet light (405nm) and using yellow filter (Shorter wavelength fluorescence emissions), (B) UV-A/violet (405nm) light with orange filter (longer wavelength fluorescence emissions), (C) Orange light- 635nm with clear filter, (D) Green light–535nm with orange filter. The numbers in the images represent the materials in Table 1. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 3 (a) Fluorescence emission of restorative materials and teeth samples when excited with blue (450nm) light and imaged with clear filter (reflectance of light), orange (longer wavelength fluorescence emissions) and yellow (shorter wavelength fluorescence emissions) filters. (b) Peak fluorescence emission of restorative materials and teeth samples plotted in ascending order when irradiated with Ultraviolet-A light (405)nm and imaged with clear, orange and yellow filters. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 4 Distribution of peak emission according to material type when excited with red (670nm), orange (635nm), yellow (585nm), green (535nm), cyan (470nm), royal blue (450nm), blue-violet (430nm) and violet/UV-A (405nm) light and under clear, orange and yellow filters. 4a: Hybrid restorative materials, 4b: Resin composite materials, 4c: Ceramics. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 5 Distribution of peak emission according to materials shade (a) Dry and wet samples of materials with dentine and enamel shades, (b) Dry and wet samples of materials with opaque and translucent shades. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 6 Fluorescence emission of dry and wet samples of Vitablocs and 3M Filtek Supreme when excited with red (670nm), orange (635nm), yellow (585nm), green (535nm), cyan (470nm), royal blue (450nm), blue-violet (430nm) and violet/UV-A (405nm) light and viewed under clear, orange and yellow filters. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions

Fig. 7 Peak fluorescence emission of wet and dry samples of permanent and deciduous teeth when excited with red (670nm), orange (635nm), yellow (585nm), green (535nm), cyan (470nm), royal blue (450nm), blue-violet (430nm) and violet/UV-A (405nm) light and viewed with and without filters. Forensic Science International 2017 273, 20-28DOI: (10.1016/j.forsciint.2017.01.022) Copyright © 2017 Elsevier B.V. Terms and Conditions