UPPER CENTRAL INCISOR AND CANINE TOOTH CROWN SIZE IN 47,XXY MALES

被引：57

作者：

ALVESALO, L

TAMMISALO, E

TOWNSEND, G

机构：

[1] UNIV ADELAIDE,DEPT DENT,ADELAIDE,SA 5001,AUSTRALIA

[2] UNIV TURKU,INST DENT,SF-20520 TURKU 52,FINLAND

来源：

JOURNAL OF DENTAL RESEARCH | 1991年 / 70卷 / 07期

关键词：

D O I：

10.1177/00220345910700070801

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

Enamel and dentin thicknesses were measured in permanent tooth crowns of 47,XXY (Klinefelter syndrome) males. In 47,XXY males, enamel thickness in maxillary central incisors was significantly greater than that in control males or females, and dentin thickness in incisors and canines was significantly greater than that in control females, but smaller than that in normal males. These findings confirm the concept that human dental growth is affected by sex chromosomes. Amelogenesis is promoted by both X and Y chromosome genes, and sexual dimorphism in average tooth size is evidently determined by a promoting effect of the Y chromosome on dentin growth, probably through cell proliferation. This effect can also explain sex predilection for males in the numbers of supernumerary and ordinary teeth.

引用

页码：1057 / 1060

页数：4

共 29 条

[1] TOOTH SIZES IN 2 MALES WITH DELETIONS OF THE LONG ARM OF THE Y-CHROMOSOME [J].

ALVESALO, L ;

DELACHAPELLE, A .

ANNALS OF HUMAN GENETICS, 1981, 45 (FEB) :49-54

[2]

ALVESALO L, 1980, AM J HUM GENET, V32, P736

[3]

ALVESALO L, 1980, AM J HUM GENET, V32, P955

[4] ENAMEL THICKNESS IN 47,XYY MALES PERMANENT TEETH [J].

ALVESALO, L ;

TAMMISALO, E ;

HAKOLA, P .

ANNALS OF HUMAN BIOLOGY, 1985, 12 (05) :421-427

[5]

ALVESALO L, 1975, AM J HUM GENET, V27, P53

[6]

ALVESALO L, 1977, AM J HUM GENET, V29, P486

[7]

ALVESALO L, 1981, AM J HUM GENET, V33, P464

[8] 47,XXX FEMALES, SEX-CHROMOSOMES, AND TOOTH CROWN STRUCTURE [J].

ALVESALO, L ;

TAMMISALO, E ;

THERMAN, E .

HUMAN GENETICS, 1987, 77 (04) :345-348

[9]

Alvesalo L., 1985, Y CHROMOSOME B, P277

[10]

FERGUSON-SMITH M A, 1965, J Med Genet, V2, P142, DOI 10.1136/jmg.2.2.142

← 1 2 3 →