Complex layered dental restorations: Are they recognizable and do they survive extreme conditions?
Identifieur interne : 000045 ( Main/Exploration ); précédent : 000044; suivant : 000046Complex layered dental restorations: Are they recognizable and do they survive extreme conditions?
Auteurs : Alistair S. Soon [Australie] ; Mary A. Bush [États-Unis] ; Peter J. Bush [États-Unis]Source :
- Forensic science international [ 1872-6283 ] ; 2015.
Abstract
Recent research has shown that restorative dental materials can be recognized by microscopy and elemental analysis (scanning electron microscopy/energy dispersive X-ray spectroscopy and X-ray fluorescence; SEM/EDS and XRF) and that this is possible even in extreme conditions, such as cremation. These analytical methods and databases of dental materials properties have proven useful in DVI (disaster victim identification) of a commercial plane crash in 2009, and in a number of other victim identification cases. Dental materials appear on the market with ever expanding frequency. With their advent, newer methods of restoration have been proposed and adopted in the dental office. Methods might include placing multiple layers of dental materials, where they have different properties including adhesion, viscosity, or working time. These different dental materials include filled adhesives, flowable resins, glass ionomer cements, composite resins, liners and sealants. With possible combinations of different materials in these restorations, the forensic odontologist is now confronted with a new difficulty; how to recognize each individual material. The question might be posed if it is even possible to perform this task. Furthermore, an odontologist might be called upon to identify a victim under difficult circumstances, such as when presented with fragmented or incinerated remains. In these circumstances the ability to identify specific dental materials could assist in the identification of the deceased. Key to use of this information is whether these new materials and methods are detailed in the dental chart. Visual or radiographic inspection may not reveal the presence of a restoration, let alone the possible complex nature of that restoration. This study demonstrates another scientific method in forensic dental identification.
DOI: 10.1016/j.forsciint.2015.06.016
PubMed: 26151675
Affiliations:
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Soon</name><affiliation wicri:level="1"><nlm:affiliation>Forensic and Scientific Services, Health Support Queensland, 39 Kessels Road, Coopers Plains 4108, Queensland, Australia; Redland and Wynnum Hospitals, Metro South Health, Wynnum Dental Clinic, Whites Road, Lota 4179, Queensland, Australia. Electronic address: asjs_soon@hotmail.com.</nlm:affiliation><country xml:lang="fr">Australie</country><wicri:regionArea>Forensic and Scientific Services, Health Support Queensland, 39 Kessels Road, Coopers Plains 4108, Queensland, Australia; Redland and Wynnum Hospitals, Metro South Health, Wynnum Dental Clinic, Whites Road, Lota 4179, Queensland</wicri:regionArea><wicri:noRegion>Queensland</wicri:noRegion></affiliation></author><author><name sortKey="Bush, Mary A" sort="Bush, Mary A" uniqKey="Bush M" first="Mary A" last="Bush">Mary A. Bush</name><affiliation wicri:level="2"><nlm:affiliation>State University New York (SUNY) at Buffalo, B1 Squire Hall, 3435 Main Street, Buffalo, NY 14214, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>State University New York (SUNY) at Buffalo, B1 Squire Hall, 3435 Main Street, Buffalo, NY 14214</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author><author><name sortKey="Bush, Peter J" sort="Bush, Peter J" uniqKey="Bush P" first="Peter J" last="Bush">Peter J. Bush</name><affiliation wicri:level="2"><nlm:affiliation>State University New York (SUNY) at Buffalo, South Campus Instrument Center, B1 Squire Hall, S Campus, Buffalo, NY 14214, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>State University New York (SUNY) at Buffalo, South Campus Instrument Center, B1 Squire Hall, S Campus, Buffalo, NY 14214</wicri:regionArea><placeName><region type="state">État de New York</region></placeName></affiliation></author></analytic><series><title level="j">Forensic science international</title><idno type="eISSN">1872-6283</idno><imprint><date when="2015" type="published">2015</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Recent research has shown that restorative dental materials can be recognized by microscopy and elemental analysis (scanning electron microscopy/energy dispersive X-ray spectroscopy and X-ray fluorescence; SEM/EDS and XRF) and that this is possible even in extreme conditions, such as cremation. These analytical methods and databases of dental materials properties have proven useful in DVI (disaster victim identification) of a commercial plane crash in 2009, and in a number of other victim identification cases. Dental materials appear on the market with ever expanding frequency. With their advent, newer methods of restoration have been proposed and adopted in the dental office. Methods might include placing multiple layers of dental materials, where they have different properties including adhesion, viscosity, or working time. These different dental materials include filled adhesives, flowable resins, glass ionomer cements, composite resins, liners and sealants. With possible combinations of different materials in these restorations, the forensic odontologist is now confronted with a new difficulty; how to recognize each individual material. The question might be posed if it is even possible to perform this task. Furthermore, an odontologist might be called upon to identify a victim under difficult circumstances, such as when presented with fragmented or incinerated remains. In these circumstances the ability to identify specific dental materials could assist in the identification of the deceased. Key to use of this information is whether these new materials and methods are detailed in the dental chart. Visual or radiographic inspection may not reveal the presence of a restoration, let alone the possible complex nature of that restoration. This study demonstrates another scientific method in forensic dental identification.</div></front></TEI><affiliations><list><country><li>Australie</li><li>États-Unis</li></country><region><li>État de New York</li></region></list><tree><country name="Australie"><noRegion><name sortKey="Soon, Alistair S" sort="Soon, Alistair S" uniqKey="Soon A" first="Alistair S" last="Soon">Alistair S. Soon</name></noRegion></country><country name="États-Unis"><region name="État de New York"><name sortKey="Bush, Mary A" sort="Bush, Mary A" uniqKey="Bush M" first="Mary A" last="Bush">Mary A. Bush</name></region><name sortKey="Bush, Peter J" sort="Bush, Peter J" uniqKey="Bush P" first="Peter J" last="Bush">Peter J. Bush</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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