用于法医应用的热诱导牙组织变化的分析:扫描电子显微镜研究
R A Mathew1, V G Doddawad2, S Shivananda3
1Department of Forensic Odontology, JSS Dental College and Hospital, A constituent college of JSSAHER, Mysore 570015, Karnataka, India.
Morphologie : bulletin de l'Association des anatomistes
|January 8, 2025
概括
法医检查烧伤的牙显示了显著的宏观和微观变化. 扫描电子显微镜 (SEM) 通过在不同温度下分析牙硬组织变化,帮助识别受害者.
科学领域:
- 法医牙科 法医牙科
- 材料科学 材料科学 材料科学
背景情况:
- 了解牙的热变化对于法医调查和受害者鉴定至关重要.
- 保存烧毁的牙可以进行详细的宏观和显微镜检查.
研究的目的:
- 分析暴露于热量的永久牙和落叶牙的宏观和微观变化.
- 用立体显微镜和扫描电子显微镜 (SEM) 评估牙硬组织的变化.
主要方法:
- 40颗拔出来的牙 (20颗永久牙,20颗落叶牙) 被加热到200°C,400°C,600°C和800°C,持续15分钟.
- 用立体显微镜和SEM (1000×) 检查牙的宏观 (颜色,半透明度,纹理) 和显微 (乳和水泥结构).
- 参数包括质坑/裂形态,镜图案,裂,多孔性,碎片和水泥变化.
主要成果:
- 关于热变化的永久牙和落叶牙之间没有发现显著的相关性.
- 宏观和显微镜检查都显示,随着温度的增加,乳液和水泥中的观察参数显著减少.
- 在指定的温度下观察到显著的形态和超结构变化.
结论:
- 显著的宏观和微观变化发生在牙组织暴露于热量.
- 扫描电子显微镜 (SEM) 是检查烧伤的牙残骸的宝贵工具,增强了法医牙科中受害者的识别.
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