尸体玫瑰齿现象与死因的关系

Is there relationship between pink teeth phenomenon and cause of death?

目的研究尸体玫瑰齿现象与死因的关系及其法医学意义。方法采用观察法研究各种死因的大鼠尸体玫瑰齿现象。每种死因观察10只大鼠,其中8只死后即刻取牙齿观察(非腐败组),2只死后置水中腐败出现尸臭时取牙齿观察(腐败组),观察后立即将牙齿置于酒精中浸泡,分别于不同浸泡时间再进行观察。结果各种死因非腐败组即刻取牙观察均未见玫瑰齿现象,但置酒精中浸泡后均逐渐出现玫瑰齿现象,并在浸泡4h后玫瑰齿颜色显著;腐败组取牙齿后即刻观察均见玫瑰齿现象,置酒精浸泡1h后颜色不改变;腐败组较非腐败组颜色明显。结论尸体玫瑰齿现象与死因无关,不能作为法医学鉴定死因的依据。

Objective To explore the relationship between the pink teeth phenomenon and the cause of death as well as its significance in forensic medicine. Methods Inspection method was adopted to observe the pink teeth phenomenon in different causes of death. Ten rats were selected for every experimental groups, which were then divided into two groups：Eight in fresh group with teeth pulled immediately, and two in decayed group with body decayed in water firstly. The teeth pulled from rats were immersed in 75% alcohol and observed at different immersion time. Results In every fresh groups, pink teeth phenomenon was not observed when they were pulled immediately, whereas it emerged gradually after the teeth immersed in 75% alcohol, and the color showed distinct and constant four hours later. In decayed groups, Pink teeth phenomenon was observed immediately when teeth pulled, it became distinct and constant after one hour＇s immersion in alcohol. So it was more distinctive in the decayed groups than that in the fresh groups. Conclusion There is no significant connection between the pink teeth phenomenon and the cause of death, thus it may not be subject to forensic identification.