Sweet D J, Sweet C H
Faculty of Dentistry, University of British Columbia, Vancouver, Canada.
J Forensic Sci. 1995 Mar;40(2):310-4.
Teeth endure postmortem degradation and extreme changes in ambient temperature and pressure better than most human tissues. This ability to resist deterioration allows the teeth to be studied as a method of establishing the identity of a decedent. Additionally, dental hard tissues, and in some instances soft tissues, may provide investigators with other sources of forensic data. In this case, a female homicide victim was transported to a location where her remains were burned. The high temperatures of a gasoline fire effectively incinerated the body precluding deoxyribonucleic acid (DNA) analysis from conventional sites. However, most of the teeth survived the conflagration. They were used to identify the victim. Additionally, the dental pulps were found to be an excellent source of high molecular weight genomic DNA. This proved to be an effective method to link the victim's body to biological evidence recovered from the site of the murder.
与大多数人体组织相比，牙齿在死后更能经受降解以及环境温度和压力的极端变化。这种抗降解能力使得牙齿能够作为确定死者身份的一种方法进行研究。此外，牙齿硬组织，在某些情况下还有软组织，可能会为调查人员提供其他法医数据来源。在这个案例中，一名女性凶杀案受害者的遗体被运到一个地方并被焚烧。汽油火灾的高温有效地焚化了尸体，使得无法从常规部位进行脱氧核糖核酸（DNA）分析。然而，大部分牙齿在大火中幸存下来。它们被用于识别受害者。此外，发现牙髓是高分子量基因组DNA的极佳来源。这被证明是将受害者遗体与从谋杀现场找到的生物证据相联系的一种有效方法。
