Increased Crown-Size Asymmetry in Trisomy G

Increased crown-size asymmetry in trisomy G.

Trisomy G (Down's syndrome or "mongolism") is associated with multiple dental abnormalities (J. OSTER, Mongolism, Copenhagen: Danish Science Press, 1953). Teeth are frequently missing, all morphologic classes are involved, and the remaining teeth are characterized by size reduction (M. M. COHEN and A. WINER, I Dent Res 44:197-208, 1965; and M. M. COHEN, S. M. GARN, and M. A. GECIAUSKAS, J Dent ...

Crown-size profile pattern in trisomy G.

Relative magnitudes of crown size reduction and body size reduction in 47-trisomy G.

Since crown size reduction has been observed in 47-trisomy G (M. M. COHEN and R. A. WINER, J Dent Res 44:197-208, 1965; M. M. COHEN, S. M. GARN, and M. A. GECIAUSKAS, J Dent Res 49:460, 1970) with delayed tooth formation timing (S. M. GARN, C. W. STIMSON, and A. B. LEWIS, J Dent Res 49:640, 1970), it is useful to compare the magnitude of crown size reduction with the magnitude of body size redu...

Klinefelter's syndrome and G trisomy.

Double autosomal trisomy (trisomy D+G) with mosaicism.

The patient, a male, the seventh child of a 37-year-old father and a 34-year-old Caucasian mother, was the product of a pregnancy complicated by massive polyhydramnios. The mother previously had had two miscarriages. During the present pregnancy she had not had any infections or X-irradiation. There was no family history of congenital malformations, mental retardation, leukaemia, autoimmune dis...