Morphologic characteristics of the Alaskan Eskimo dentition

IV. Cusp number and groove patterns of mandibular molars

Bibliographic Data

ID8313832
AuthorsAsbjörn Hasund, Gisle Bang (Universität Hamburg)
Year1985
Volume67
Issue1
Pages65-69
Publication date1985-05-01
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueAmerican Journal of Physical Anthropology (JOURNAL)
Journal identifiersISSN: 0002-9483 • E-ISSN: 1096-8644
PublisherWiley (PUBLISHER • GB)
DOI10.1002/ajpa.1330670108
PMID4061572
OpenAlexW2122245252
LanguageEN
Citations received2
References cited9

Data on the permanent dentition of 63 coastal and 33 inland Alaskan Eskimos are presented. The number of cusps and groove pattern of the mandibular molars were recorded. Agenesis of the mandibular third molars was classified and the mesiodistal and buccolingual crown diameter was measured on the first and the second mandibular molars. The predominant pattern of the lower first molars was Y5, while for the second molar the dominating patterns were +5 and +4. In the lower third molar, +5 was found in the majority of cases. For M 1 and M 2 , men showed a stronger tendency toward a conservative pattern than did women. In the case of M 2 , the inland population exhibited a more conservative trait than did the coastal population. No connection was seen between the groove pattern and agenesis of M 3 , however, a reduction in the mesiodistal crown diameter for the second molars was seen when the number of cusps is reduced from 5 to 4

Biology · Cusp (singularity) · Dentition · Genus · Geometry · Groove (engineering) · Mandible (arthropod mouthpart) · Molar · Zoology · dental development and anomalies · Dentistry · Geology · Materials Science · Mathematics · Medicine · Orthodontics · Paleontology

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