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The depth of the lingual fossa in permanent incisors of Norwegian . I. method of measurement, statistical distribution and sex dimorphism
Author(s) -
Aas I. H. Monrad,
Risnes Steinar
Publication year - 1979
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.1330500306
Subject(s) - fossa , norwegian , incisor , orthodontics , skewness , dentistry , maxillary central incisor , kurtosis , skull , sexual dimorphism , mathematics , anatomy , biology , medicine , zoology , statistics , philosophy , linguistics
The depth of the incisor lingual fossa in permanent extracted incisors and plaster casts of Norwegians was examined. It was shown that plaster casts are well suited for measurements of lingual fossa depth, and that the measurements can be performed with great accuracy. Skewness values showed the symmetry of the distribution to decrease with decreasing mean lingual fossa depth. Kurtosis was found small in maxillary incisors, in mandibular outside the limits for normal theory. The distribution of the depth of the lingual fossa cannot generally be described as normal. No sex differences were found. The inheritance of this trait in Norwegians is probably not sex linked.