• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Response of orthodontic materials to extreme temperatures.
【24h】

Response of orthodontic materials to extreme temperatures.

机译：正畸材料对极端温度的响应。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Victims of incineration events challenge the forensic odontologist when coronal restorations are no longer present to compile postmortem data. The increase in the number of patients wearing orthodontic appliances increases the antemortem and postmortem data available to make a positive identification.;The aim of this study was to provide an elemental-composition survey of various orthodontic materials before and after exposure to extreme temperatures.;Five major orthodontic companies---American Orthodontics, GAC, Ormco, Reliance, and 3M-Unitek donated orthodontic products. We requested all materials that were unique in composition.;The products were prepared and subsequently subjected to incineration for 30 minutes at 900 degrees Celsius. The analysis was completed by scanning electron microscopy/energy dispersive x-ray spectroscopy (SEM/EDS) to assess the elemental composition of the products before and after incineration.;SEM/EDS successfully identified and fingerprinted various orthodontic brackets, wires, adhesives, and other products before and after exposure to extreme temperatures.;This study demonstrates that orthodontic materials are capable of withstanding extreme temperatures, and can be utilized by the forensic odontologist as an aid to post mortem identification. Further, this study begins represents the initial stage of database generation for orthodontic materials as aid to forensic odontologists.
机译：当不再存在冠状修复体来收集尸体解剖数据时，焚化事件的受害者将挑战法医牙医。佩戴正畸矫治器的患者数量的增加增加了可用于阳性鉴定的前验和死后数据。本研究的目的是提供暴露于极端温度之前和之后各种正畸材料的元素组成调查。五家主要的正畸公司捐赠了正畸产品，分别是美国正畸，GAC，Ormco，Reliance和3M-Unitek。我们要求所有组成独特的材料。;准备好产品，然后在900摄氏度下焚烧30分钟。通过扫描电子显微镜/能量色散X射线光谱（SEM / EDS）评估焚烧前后产品的元素组成来完成分析; SEM / EDS成功地识别并指纹化了各种正畸支架，电线，粘合剂和这项研究表明，正畸材料能够承受极端温度，并且可以由法医牙齿学家使用，以帮助进行尸体鉴定。此外，这项研究开始代表正畸材料数据库生成的初始阶段，以帮助法医牙齿学家。

著录项

  • 作者

    Jones, Neal LeBaron.;

  • 作者单位

    State University of New York at Buffalo.;

  • 授予单位 State University of New York at Buffalo.;
  • 学科 Anthropology Medical and Forensic.;Health Sciences Dentistry.
  • 学位 M.S.
  • 年度 2009
  • 页码 52 p.
  • 总页数 52
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 口腔科学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号