Comparative study of the upper molar occlusal table morphology among seven human populations

Dados Bibliográficos

ID8320474
AutoresEisaku Kanazawa (Nihon University), Donald H Morris (Arizona State University), Mitsuo Sekikawa (Nihon University), T Ozaki (0000-0001-9930-9179, Nihon University)
Ano1988
Volume77
Fascículo2
Páginas271-278
Data de publicação1988-10-01
Peer ReviewedSim
Open AccessSim
TipoARTICLE
PeriódicoAmerican Journal of Physical Anthropology (JOURNAL)
Identificadores do periódicoISSN: 0002-9483 • E-ISSN: 1096-8644
EditoraWiley (PUBLISHER • GB)
DOI10.1002/ajpa.1330770215
PMID3207172
OpenAlexW2013643285
IdiomaEN
Citações recebidas3
Referências citadas25

Three‐dimensional morphology of the occlusal table of the upper first molars was compared in seven racial populations. Materials were moiré contourograms collected by ourselves over 5 years. Intercuspal distances and cuspal heights were comparatively studied in this analysis. When the populations were arranged in the order of these sizes, their arrangements based on intercuspal distances and cuspal heights were quite different from each other. When intercuspal distances were scaled by protocone‐paracone distance, the distances connecting distal cusps were significantly smaller in Mongoloids (Japanese and Eskimo) than in Caucasoids (Dutch and Asiatic Indian), which suggests a reduction tendency of distal cusps in Mongoloids. This tendency was intermediate in Negroids and Australoid. Principal coordinate analysis was carried out on the basis of a similarity matrix including both intercuspal distances and cuspal heights. The result suggested that the three‐dimensional shape of the occlusal table was distinguishable in four representative racial populations

Biology · Molar · Morphology (biology) · Table (database) · Zoology · Computer Science · Dental Radiography and Imaging · Dentistry · Forensic Anthropology and Bioarchaeology Studies · Medicine · Morphological variations and asymmetry · Orthodontics