title: Three-rooted mandibular first permanent molars and the question of American Indian origins.
mesh_terms: D001210:Asia, Southeastern; D005075:Biological Evolution; D005260:Female; D005826:Genetics, Medical; D006801:Humans; D007198:Indians, North American; D004930:Inuit; D008297:Male; D008334:Mandible; D008963:Molar; D010161:Paleodontology; D012737:Sex Factors; D014092:Tooth Root; D014481:United States