Color Stability of Dental Restorative Materials Submitted to Heat Sources, for Forensic Purposes

被引：6

作者：

Biancalana, Roberto Cesar ^{[1
]}

Vicente, Sergio Augusto de Freitas ^{[2
]}

Alves da Silva, Ricardo Henrique ^{[1
]}

Pires-de-Souza, Fernanda de Carvalho Panzeri ^{[2
]}

机构：

[1] Univ Sao Paulo, Ribeirao Preto Sch Dent, Dept Stomatol Publ Oral Hlth & Forens Dent, Ribeirao Preto, Brazil

[2] Univ Sao Paulo, Ribeirao Preto Sch Dent, Dept Dent Mat & Prosthodont, Av Cafe S-N, BR-14040904 Ribeirao Preto, SP, Brazil

来源：

JOURNAL OF FORENSIC SCIENCES | 2017年 / 62卷 / 02期

关键词：

forensic science; forensic dentistry; human identification; dental materials; heat source; color; VICTIM IDENTIFICATION; HIGH-TEMPERATURES; COMPOSITE; TEETH; EXPOSURE; TISSUES; ACID;

D O I：

10.1111/1556-4029.13292

中图分类号：

DF [法律]; D9 [法律]; R [医药、卫生];

学科分类号：

0301 ; 10 ;

摘要：

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 x 6 x 2 mm) and separated into groups (n = 10). The color readouts were taken by spectrophotometer, before and after heat action (100 degrees C, 200 degrees C, 300 degrees C), in an oven for 15 min. There were color alterations for all coordinates (E, L*, a* eb*) 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.

引用

页码：355 / 360

页数：6

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