Environmental and genetic effects on H plane in cephalograms of female  twins from six to twelve years old

doi:10.16098/j.issn.0529-1356.2018.05.020

Acta Anatomica Sinica ›› 2018, Vol. 49 ›› Issue (5): 677-682.doi: 10.16098/j.issn.0529-1356.2018.05.020

• Anthropology • Previous Articles Next Articles

Environmental and genetic effects on H plane in cephalograms of female twins from six to twelve years old

ZHAO Chan-yuan¹ WANG Yang-yang¹ WANG Mei-yan² HUO Feng¹WANG Peng^1*

1. Department of Stomatology of Affiliated Hospital of Chengde Medical College, Hebei Chengde 067000,China) 2. Department of Stomatology,Chengde Nursing Vocational College，Hebei Chengde 067000, China

Received:2017-11-24 Revised:2018-01-09 Online:2018-10-06 Published:2018-10-06
Contact: WANG Peng E-mail:zhaochanyuan2012@163.com

Abstract

Abstract:

Objective To study the relative effects of environment and genes on the soft tissue H plane during the mixed dentitions, and to provide theoretical evidence to establish the correct teeth treatment plan. Methods The lateral cephalograms of one hunded and eighty-three female twins were studied. The environmental and genetic effects were analyzed on soft tissue profile by twin method . Results The influence of environmental factors was detected by measurement items of soft tissue nasal roots (H1), nasal vertex (H2),subnasal point (H4),lower lip pits（H9）, and soft tissue chin point (H10). The influence of environmental and genetic factors was detected by measurement items of lower lip pits（H9). Conclusion The upper and lower lips are detected to be influenced by environmental factors, whereas the lower lip pits are mainly by the environmental and genetic factors.

Key words: Soft tissue profile, H line, X-ray cephalometry, Twin

ZHAO Chan-yuan WANG Yang-yang WANG Mei-yan HUO Feng WANG Peng. Environmental and genetic effects on H plane in cephalograms of female twins from six to twelve years old[J]. Acta Anatomica Sinica, 2018, 49(5): 677-682.

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Environmental and genetic effects on H plane in cephalograms of female twins from six to twelve years old

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