Research on non-metric dental traits in present South-American populations: State of art and forensic contextualization [Investigación de rasgos dentales No métricos en poblaciones sudamericanas actuales: Estado de situación y contextualización forense]

In recent human populations there is a pattern of geographic variation associated to the tooth morphology. In the last decades there has been a remarkable scientific production around the study of non-metric dental traits in order to define the geographic patterns of groups, their history, origin or