Feasibility and validation of virtual autopsy for dental identification using the Interpol dental codes

2013 ◽  
Vol 20 (4) ◽  
pp. 248-254 ◽  
Author(s):  
Ademir Franco ◽  
Patrick Thevissen ◽  
Walter Coudyzer ◽  
Wim Develter ◽  
Wim Van de Voorde ◽  
...  
Author(s):  
Catherine A. Storer ◽  
John Berketa ◽  
Denice Higgins

2010 ◽  
Vol 201 (1-3) ◽  
pp. 3-4 ◽  
Author(s):  
David Sweet

Author(s):  
Fabrice Dedouit ◽  
Marie Faruch ◽  
Norbert Telmon ◽  
Philippe Otal ◽  
Hervé Rousseau ◽  
...  
Keyword(s):  

2016 ◽  
Vol 22 (2) ◽  
pp. 44-56 ◽  
Author(s):  
Jan-Vidar Ølberg ◽  
Morten Goodwin

Abstract Teeth are some of the most resilient tissues of the human body. Because of their placement, teeth often yield intact indicators even when other metrics, such as finger prints and DNA, are missing. Forensics on dental identification is now mostly manual work which is time and resource intensive. Systems for automated human identification from dental X-ray images have the potential to greatly reduce the necessary efforts spent on dental identification, but it requires a system with high stability and accuracy so that the results can be trusted. This paper proposes a new system for automated dental X-ray identification. The scheme extracts tooth and dental work contours from the X-ray images and uses the Hausdorff-distance measure for ranking persons. This combination of state-of-the-art approaches with a novel lowest cost path-based method for separating a dental X-ray image into individual teeth, is able to achieve comparable and better results than what is available in the literature. The proposed scheme is fully functional and is used to accurately identify people within a real dental database. The system is able to perfectly separate 88.7% of the teeth in the test set. Further, in the verification process, the system ranks the correct person in top in 86% of the cases, and among the top five in an astonishing 94% of the cases. The approach has compelling potential to significantly reduce the time spent on dental identification.


2017 ◽  
Vol 21 (1) ◽  
pp. 28-34
Author(s):  
Sebastián Medina ◽  
Sandra Henao ◽  
Viviana Muñóz ◽  
Carolina López ◽  
Juan Esteban Gutiérrez ◽  
...  

SUMMARYObjective: To describe the physical changesofmacro-structural dental tissues (enamel,dentin and cement) and periodontal(oral mucous membrane, alveolar compactbone and cancellous alveolar bone) ofdomestic pig (Sus domesticus) expose tohigh temperatures.Materials and methods: This descriptivestudy observed the physical changes in macro-structural dental tissues and periodontalin 25 teeth of domestic pigs subjected tohigh temperatures (200°C, 400°C, 600°C,800°C and 1000°C).Results: Dental and periodontal tissues studiedshow great resistance when subjectedto high temperatures without changing significantlytheir macro-structure. At 200°Cno color changes and cracks appear in theenamel. At 400°C there was an increase ofthe fissure and no separation between thehard tissues, initiating carbonization. At600°C fractures in the dental tissues andbone are most apparent. At 800°C burningof the tissues initiated. At 1000°C there wasno evidence of soft tissue.Conclusions: Macroscopic analysis of theteeth articulated in their alveolar-dentalunits constitutes a experimental model thatssimulates the changes of dental and periodontaltissues expose to high temperature.It is recommended to conduct astudy onhuman teeth in their respective unit articulatedalveolar to determine whether themacro-structural physical changes describedare repeated and can be extrapolated,and which can eventually be used duringthe process of dental identification anddocumentation of the medical legal autopsyused in the case of bodies or human remainsburned, charred and burned.Key words: Forensic dentistry, domesticpig (Sus domesticus), dental and periodontaltissues, temperature exposition, animalmodel.


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