Related Experiment Video
Updated: Aug 7, 2026
Measurement of Oxygen Consumption Rate in Acute Striatal Slices from Adult Mice
Published on: June 8, 2022
[Is there relationship between pink teeth phenomenon and cause of death?]
Xiao-Ming Xu1, Qiong Feng, Zhi-Qiang Gong
1Institute of Forensic Medicine, Jiangxi Medical College, Nanchang 330006, China. jyfyx@jxmu.edu.cn
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.
Related Concept Videos
01:15Teeth
In the bud stage, the tooth germ (an aggregation of cells) starts to form in the developing jawbone. During the cap stage, the tooth germ differentiates into enamel organ, dental papilla, and dental sac, which will later develop into the tooth's enamel, dentin and...
01:21Tooth Anatomy
The Crown, Neck, and Root
The visible part of the tooth is referred to as the crown. It's covered by enamel, the hardest substance in the human body. The crown is uniquely shaped for each type of tooth, allowing for different functions such as cutting, tearing, or grinding food.
02:41Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
01:33Pleiotropy
01:24Parkinson Disease ll: Pathophysiology