Biological and Physical Anthropology Commons^™

The Forensic Implications Of Hydrochloric Acid (Hcl) Exposure On Dna Preservation In Human Teeth, Shaelyn Lee Zimmerman

Graduate Student Theses, Dissertations, & Professional Papers

Identity is a human right, and forensic anthropological methods are often aimed at returning identity to decedents. Three main pathways are used for the identification of human remains: fingerprints, dental records, and DNA analysis. Identification efforts may be hindered when perpetrators attempt to obscure the victim’s identity. In cases where corrosive substances, such as hydrochloric acid (HCl) are used, dental comparison and fingerprinting often fail and genetic analysis becomes the best chance of achieving personal identification.

Previous studies have shown teeth are an excellent source of DNA. Large, multi-rooted teeth, such as molars, are often preferred because they contain the …

Tooth Ablation And The Jōmon - Yayoi Transition In Japan, Laura R. Erickson

Theses and Dissertations

The Jōmon – Yayoi period transition in Japan is marked by many migrants coming through the Korean Peninsula into Kyushu, sparking changes such as the introduction of wet-rice agriculture to the native hunter-gatherer-fisher Jōmon population and decreases in tooth ablation patterns and percentages. Ritual tooth ablation, or the removal of healthy front teeth, is typically seen as a coming-of-age practice, with the Jōmon having a diverse amount of ablation patterns. In this study, I explored how the rates and variation of tooth ablation changed throughout Japan after the arrival of Yayoi migrants from the continent. After calculating ablation rates per …