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Rocker jaws
Author(s) -
Houghton Philip
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.1330470303
Subject(s) - crania , anatomy , occlusion , mandible (arthropod mouthpart) , orthodontics , dentistry , medicine , biology , surgery , zoology , genus
Most adult Polynesian mandibles are of the rocker form. Polynesian crania possess a very open cranial base angle and a large upper facial height. The mandibular growth rotations necessary to maintain occlusion in the presence of this cranial morphology lead to development of an exceptionally closed ramus‐body angle, with consequent loss of the antegonial notch and appearance of the rocker form.