ASUDAS

Reference plaques of the ASUDAS illustrating human tooth crown and root shape variants

The ASUDAS (Arizona State University Dental Anthropology System) is a reference system for collecting data on human tooth morphology and variation created by Christy G. Turner II, Christian R. Nichol, and G. Richard Scott.[1] The ASUDAS gives detailed descriptions for common crown and root shape variants and their different degrees of expression. It also comprises a set of reference plaques illustrating dental variants as well as showing their expression levels in 3D. The ASUDAS was designed to ensure a standardized scoring procedure with minimum error in order to warrant comparability between data collected by different observers.

The ASUDAS currently comprises a set of 42 dental variants that can be observed in the permanent adult dentition.[2] The majority are crown and root shape variants, although the system also includes some skeletal variants of the maxilla and mandible. Most of the variants occur at different frequencies in human populations around the world.[3] Examples of dental variants listed in the ASUDAS are shovel-shaped incisors, Carabelli cusps, or hypocones.

  1. ^ Advances in dental anthropology. Kelley, Marc A., Larsen, Clark Spencer. New York: Wiley-Liss. 1991. pp. 13–32. ISBN 0-471-56839-2. OCLC 21599953.{{cite book}}: CS1 maint: others (link)
  2. ^ Scott, G. Richard; Irish, Joel D. (2017). Human Tooth Crown and Root Morphology: The Arizona State University Dental Anthropology System. Cambridge: Cambridge University Press. doi:10.1017/9781316156629. ISBN 978-1-316-15662-9.
  3. ^ Scott, G. Richard; Turner II, Christy G.; Townsend, Grant C.; Martinón-Torres, María (2018-03-15). The Anthropology of Modern Human Teeth: Dental Morphology and Its Variation in Recent and Fossil Homo sapiens (2 ed.). Cambridge University Press. doi:10.1017/9781316795859. ISBN 978-1-316-79585-9.