This section involved comparing dental trait frequencies between 19th-20th century White and Black Americans to identify ancestry patterns and temporal changes. I calculated trait frequencies, analyzed intergroup differences, and interpreted trends through admixture theory
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Analysis Skills
Analysis Skills
In my research, I employed dental nonmetric trait analysis following the Arizona State University Dental Anthropology System (ASUDAS) to compare ancestral variation between populations.
This involved scoring specific crown and root features (e.g., cusp patterns, shoveling) using standardized breakpoints, then analyzing trait frequencies through statistical comparisons.
This method is fundamental to biodistance studies and forensic ancestry estimation, requiring meticulous observation skills and familiarity with osteological variation.
I analyzed dental morphology data from 1,127 individuals across five 19th-20th century U.S. populations, focusing on 12 key nonmetric traits.
Using the ASUDAS scoring system, I calculated trait frequencies for each population group and compared distributions between White and Black Americans.
The analysis revealed significant temporal shifts, particularly the homogenization of cusp-related traits in 20th-century samples, suggesting increased admixture.
This required meticulous data standardization, statistical comparison of trait frequencies, and interpretation through biodistance theory.
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