Longitudinal environmental effects on craniofacial depth in cephalograms of female twins aged six to twelve

LV Jing; LIU Keli; PENG Jing

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Medical Journal of the Chinese People Armed Police Forces ›› 2018, Vol. 29 ›› Issue (4) : 332-335.

ORIGINAL ARTICLES

Longitudinal environmental effects on craniofacial depth in cephalograms of female twins aged six to twelve

LV Jing¹, LIU Keli¹,PENG Jing²

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Abstract

Objective To study the relative effects of the environment and genes on craniofacial depth during mixed dentitions.Methods The samples used in this study consisted of lateral cephalograms of one hundred and eighty-three female twins. The environmental and genetic effects on craniofacial depth among female twins aged six to twelve were analyzed with statistical methods.Results Statistical comparisons revealed significant environmental and genetic effects on the horizon measurement results (L1, L2 and L3) and soft tissue depth results (D1, D2 and D3) in female twins, and significant genetic effects on the angle measurement results (G-Sn-Pos and Ns-Sn-Pos).Conclusions The effect of genes on craniofacial depth is significant, while the environmental impact can also be observed.

Key words

twins study / X-ray cephalograms / craniofacial depth

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LV Jing, LIU Keli,PENG Jing. Longitudinal environmental effects on craniofacial depth in cephalograms of female twins aged six to twelve[J]. Medical Journal of the Chinese People Armed Police Forces. 2018, 29(4): 332-335

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