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Torus mandibularis in 45,X females (Turner syndrome)
Author(s) -
Alvesalo Lassi,
Mayhall John T.,
Varrela Juha
Publication year - 1996
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/(sici)1096-8644(199610)101:2<145::aid-ajpa2>3.0.co;2-1
Subject(s) - turner syndrome , medicine , biology
Ninety‐three Finnish females with a 45,X chromosome constitution, 78 first‐degree female, and 37 first‐degree male relatives were examined to determine the frequency and expression of torus mandibularis. The results indicate that among adults the frequency of the trait was significantly lower and the expression weaker in the 45,X females than in male control relatives. A similar trend was observed in comparison to normal females. In juveniles the trend was reversed. Our findings suggest that the sex chromosomes may have an influence on the occurrence, expression, and timing of development of the mandibular torus. Sexual dimorphism in the manifestation of torus mandibularis may result particularly from the effect of the Y chromosome on growth. © 1996 Wiley‐Liss, Inc.