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Gingival eruption sequences of permanent teeth in early hominids
Author(s) -
Wallace John A.
Publication year - 1977
Publication title -
american journal of physical anthropology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.146
H-Index - 119
eISSN - 1096-8644
pISSN - 0002-9483
DOI - 10.1002/ajpa.1330460315
Subject(s) - australopithecus , tooth eruption , permanent tooth , permanent teeth , sexual dimorphism , dentistry , biology , medicine , evolutionary biology , zoology , molar
Gingival eruption of the permanent teeth of Australopithecus, Paranthropus , and early Homo , diagnosed from enamel scratches and facets, is similar save for two sequences: eruption of the canines relative to the premolars which may be sexually dimorphic; and agenesis of M3 with delayed eruption of M2, first seen in Homo at two million years. Gingival eruption sequences are similar also for early and modern Homo , except that in some individuals today M3, M2, M1 and I2 take longer to form and emerge through the gingiva as functioning teeth. Probably, from two million years to the present in the evolutionary history of Homo dental development slowed‐down. More and more of ontogeny has been taken over for eruption.