Related Experiment Video
Updated: Feb 28, 2026

06:18
Optimized Bone Sampling Protocols for the Retrieval of Ancient DNA from Archaeological Remains
Published on: November 30, 2021
5.2K
DNA analysis of root canal-filled teeth.
Hikaru Izawa1, Hirofumi Tsutsumi1, Sayaka Maruyama1
1Department of Legal Medicine, Nihon University School of Dentistry, 1-8-13: Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan; Division of Social Dentistry, Nihon University School of Dentistry, 1-8-13: Kanda-Surugadai, Chiyoda-ku, Tokyo 101-8310, Japan.
Legal Medicine (Tokyo, Japan)
|June 18, 2017
Summary
Root canal filled teeth are viable for DNA analysis, even after decades. This forensic dentistry study confirms their utility for identifying individuals from decomposed remains using short tandem repeat (STR) profiling.
Area of Science:
- Forensic Science
- Genetics
- Odontology
Background:
- Teeth are valuable forensic samples for DNA analysis.
- Intact teeth are not always available from decomposed or skeletonized remains.
- Previous studies have not extensively evaluated root canal filled teeth for DNA profiling.
Related Concept Videos
Tooth Anatomy
2.4K
The human tooth enables us to eat a variety of foods, speak clearly, and even aid in shaping our faces. Teeth are composed of various elements that work together. Here's a detailed look at the anatomy of a human tooth.
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...
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...
2.4K
Teeth
1.9K
The formation of teeth, also known as odontogenesis, is a complex process that begins in utero, around the sixth week of embryonic development. There are three stages to this process: the bud stage, the cap stage, and the bell stage.
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...
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...
1.9K

