Abstract:
:During postmortem examination of the dental arches of carbonized victims, dental restorative materials may be found. The aim of this study was to evaluate the effect of heat source action on the color stability of composite resin (CR) and glass ionomer cement (GIC) restorations, to discriminate between them and compare with antemortem dental data. Sixty bovine teeth (30 CR and 30 GIC) were prepared (6 × 6 × 2 mm) and separated into groups (n = 10). The color readouts were taken by spectrophotometer, before and after heat action (100°C, 200°C, 300°C), in an oven for 15 min. There were color alterations for all coordinates (ΔE, ΔL*, Δa* eΔb*) for both materials. GIC presented greater change. The authors concluded that it is possible to distinguish between the materials by the color changes analyzed by instrumental method, helping victim identification.
journal_name
J Forensic Scijournal_title
Journal of forensic sciencesauthors
Biancalana RC,Vicente SA,Alves da Silva RH,Pires-de-Souza FCdoi
10.1111/1556-4029.13292subject
Has Abstractpub_date
2017-03-01 00:00:00pages
355-360issue
2eissn
0022-1198issn
1556-4029journal_volume
62pub_type
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