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中华口腔医学研究杂志(电子版) ›› 2009, Vol. 3 ›› Issue (03) : 292 -299. doi: 10.3877 / cma.j.issn.1674-1366.2009-03-010

临床研究

6 ~12 岁女童头影测量中颅面形态遗传作用的纵向分析
彭静1,(), 邓辉2, 曹采方2   
  1. 1.100039 北京,武警总医院口腔科
    2.100039 北京,北京大学口腔医院
  • 收稿日期:2009-01-28 出版日期:2009-06-01
  • 通信作者: 彭静

Longitudinal genetic effects on craniofacial morphology in cephalograms of female twins

Jing PENG1,(), Hui DENG1, Cai-fang CAO1   

  1. 1.Department of Stomatology, The General Hospital of Armed Police Forces, Beijing 100039, China
  • Received:2009-01-28 Published:2009-06-01
  • Corresponding author: Jing PENG
引用本文:

彭静, 邓辉, 曹采方. 6 ~12 岁女童头影测量中颅面形态遗传作用的纵向分析[J/OL]. 中华口腔医学研究杂志(电子版), 2009, 3(03): 292-299.

Jing PENG, Hui DENG, Cai-fang CAO. Longitudinal genetic effects on craniofacial morphology in cephalograms of female twins[J/OL]. Chinese Journal of Stomatological Research(Electronic Edition), 2009, 3(03): 292-299.

目的

探讨遗传和环境因素在生长发育过程中对颅面形态的影响,以及各种口腔正畸治疗的可行性和所受的遗传限制,以提高正畸治疗质量,尤其是混合牙列期儿童的早期矫治水平。

方法

测量89 对双生子女童的头颅侧位片;采用混合纵向观察法,最终得到有效双生子对数183 对(其中同卵110 对,异卵73 对);利用双生子法纵向统计分析颅面形态的遗传和环境作用。

结果

上下颌的前后位置关系(ANB、NAP)、颅面深度(L1、L2、L3)、面后部高度(H2、H6、SGo)受环境因素影响(P<0.05),而面前部高度(H1、H3、H4、H5、NMe)、面后部高度(H2、H7)受遗传因素影响(P<0.05)。

结论

早期矫治能够改变上下颌的前后位置关系及颅面深度,且以面下部深度变化最明显;早期矫治能改变面后部高度,但有遗传阻力,其中面前部高度具有高度遗传阻力,最难被改变。

Objective

To study the relative effects of genes and environment on the craniofacial morphology during the growth and development stage, discuss the possibilities and genetic limitations of the various orthodontic treatment so as to enhance the treatment level,especially for early treatment started in the mixed dentitions.

Methods

The sample used in this study consisted of lateral cephalograms of 89 pairs of female twins in Beijing. With a mixed longitudinal method, 183 pairs (MZ 110, DZ 73) of effective twins were obtained. The genetic and environmental effects were analyzed on craniofacial hard tissue morphology of female twins from six to twelve years old by twin statistical methods.

Results

Statistical analysis revealed that environmental factors had significant (P<0.05) effects on anterior-posterior position between lower and upper jaws(ANB and NAP), craniofacial depth(L1, L2 and L3), and posterior height of face(H2, H6 and SGo), whilst genetic effects showed significant impact on anterior (H1, H3,H4, H5, and NMe)and posterior (H2 and H7) face height (P<0.05).

Conclusions

Early orthodontic treatment may be effective to change anterior-posterior position between lower and upper jaws, craniofacial depth (especially the lower face depth), and posterior height of face.The relatively high inherited proportions of craniofacial height should be recognized, and this might be a resistance to the treatment, especially the front height of face.

表1 ME 组、MZ 组以及DZ 组的分布情况表
图1 头影测量解剖标志点及测量项目图示
表2 同卵双生子对间的平均差值与测量误差对间的平均差值的独立样本t 检验
项目 6岁组 7岁组 8岁组 9岁组 10岁组 11岁组 12岁组
均差 P 均差 P 均差 P 均差 P 均差 P 均差 P 均差 P
ANB
MZ 0.7 1.1 1.0 0.9 1.2 1.4 1.3
ME 0.5 0.474 0.5 0.021 0.6 0.066 0.5 0.083 0.7 0.039 0.6 0.001 0.6 0.009
NAP
MZ 1.1 1.9 2.2 2.6 3.0 3.2 3.2
ME 1.1 0.997 1.2 0.074 1.1 0.039 1.0 0.004 1.5 0.002 1.1 0.000 1.2 0.003
L1
MZ 1.3 1.7 1.6 2.3 1.7 1.6 1.9
ME 1.0 0.484 1.2 0.320 1.0 0.122 0.7 0.000 1.0 0.089 0.8 0.031 0.7 0.023
L2
MZ 1.3 1.5 1.9 1.7 1.6 2.1 2.7
ME 0.6 0.157 0.9 0.269 0.8 0.027 0.6 0.024 0.9 0.068 0.8 0.001 0.6 0.004
L3
MZ 1.7 2.1 2.9 2.8 2.7 2.9 4.0
ME 0.6 0.137 1.1 0.073 0.9 0.035 0.7 0.005 0.9 0.007 0.7 0.002 1.1 0.023
H1
MZ 1.3 2.1 1.2 2.5 2.2 2.0 2.1
ME 1.0 0.355 1.0 0.033 1.0 0.509 1.0 0.005 1.6 0.156 1.4 0.245 1.4 0.198
H2
MZ 0.6 1.8 1.1 1.9 1.9 1.7 1.9
ME 0.4 0.495 0.7 0.011 0.8 0.180 0.7 0.015 0.6 0.001 0.6 0.000 0.8 0.009
H3
MZ 0.8 1.8 1.0 1.6 1.4 1.3 1.6
ME 1.1 0.299 1.2 0.164 1.0 0.930 0.9 0.112 1.4 0.908 1.3 0.990 1.4 0.719
H4
MZ 1.0 1.9 1.1 1.1 1.0 1.8 1.2
ME 1.0 1.000 0.7 0.004 0.9 0.423 0.5 0.088 0.6 0.288 0.8 0.000 0.8 0.161
H5
MZ 1.1 1.7 1.5 1.9 2.0 1.6 2.0
ME 0.9 0.601 1.1 0.135 1.0 0.133 0.9 0.029 1.5 0.158 1.2 0.376 1.4 0.089
H6
MZ 1.1 1.1 1.2 1.0 1.2 1.3 1.3
ME 0.8 0.418 0.4 0.006 0.6 0.290 0.5 0.021 0.6 0.015 0.6 0.004 0.7 0.016
H7
MZ 1.1 1.5 1.8 1.7 1.5 1.4 1.5
ME 1.1 0.882 0.7 0.017 0.8 0.171 0.7 0.004 0.7 0.002 1.0 0.115 0.7 0.110
NMe
MZ 1.2 2.2 1.4 2.6 2.3 2.1 2.3
ME 0.9 0.493 1.0 0.012 1.0 0.266 1.1 0.008 1.5 0.119 1.4 0.207 1.3 0.074
SGo
MZ 0.7 1.5 1.1 1.7 1.9 1.6 1.9
ME 0.4 0.258 0.6 0.025 0.7 0.057 0.7 0.040 0.5 0.000 0.7 0.001 0.7 0.004
表3 同卵双生子对间的平均差值与异卵双生子对间的平均差值的独立样本t 检验
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