长春地区汉族青少年正常（牙合）Jarabak头影测量分析方法全部指标正常值的建立

发布时间：2018-05-25 20:59

本文选题：Jarabak分析法 + 头影测量　；参考：《吉林大学》2015年硕士论文

【摘要】：实验目的：研究长春地区正常牙合汉族青少年Jarabak头影测量分析法，分析不同性别人群颅颌面部结构的发育特征，建立长春地区正常牙合青少年Jarabak头影测量分析法各指标的正常值，为正畸医师对错牙合畸形患者的病因机制、诊断设计提供参考值，便于针对不同患者制定不同的个体化治疗方案，，提高正畸矫治的质量和效率。同时推进Roth-Williams矫治理念在长春地区的应用。实验方法：通过对长春地区3所中小学1500余名适龄青少年进行普查，筛选出正常牙合青少年65例，男性30例，女性35例（平均年龄：男14.07±1.72，女14.34±1.43）。在自然头位(Natural Head Position,NHP)下对每位受试者拍摄X线头颅定位侧位片，分别采用手工法和WinCeph8.0软件对Jarabak头影测量分析方法的测量标志点进行定点，然后测量由这些标记点所组成的线距、角度以及线距比等测量项目，得出测量结果，采用SPSS17.0统计软件对实验数据以性别作为分组依据，对实验数据进行成组t检验，检验水准为ɑ=0.05。实验结果：本研究得到长春地区汉族青少年男性、女性正常牙合Jarabak头影测量分析方法各项指标的正常值范围，并对各项测量指标进行男女性别间的统计学差异比较，通过统计学分析，得知所选实验对象年龄无明显统计学差异（P=0.48）。牙性及软组织测量指标男性、女性之间无明显统计学差异（P＞0.05）。S-N(mm)、S-Ar(mm)、Ar-Go(mm)、N-Go(mm)、S-Me(mm)、Go-Me(mm)、S-Go(mm)、N-Me(mm)等线距测量指标存在明显性别差异（P＜0.01），男性大于女性。线距比Go-Me/S-N存在性别差异（P＜0.05），男性小于女性。下颌平面角SN-GoGn(°)这一项角度测量指标也存在男女性别差异（P＜0.05），但差异不大，男性小于女性。其余骨性测量指标不存在明显性别差异。Jarabak比，即后面高度与前面高度的比值（S-Go/N-Me），男性为（70.92±4.23）％；女性为（67.53±4.12）％，无明显性别差异（P＞0.05）。实验结论：建立了长春地区青少年正常牙合Jarabak头影测量分析法全部指标的正常值，且测量指标在长春地区男女性别间存在如下分布特点：①Jarabak头影测量分析法中牙性指标及软组织指标男女性别间无明显统计学差异；②Jarabak头影测量分析法中线距测量指标存在明显性别差异，男性大于女性；③Jarabak头影测量分析法角度测量指标中下颌平面角SN-GoGn(°)这项测量指标具有性别差异（P＜0.05），男性小于女性。④Jarabak比，即后面高度与前面高度的比值（S-Go/N-Me），男性为（70.92±4.23）％；女性为（67.53±4.12）％，无明显性别差异（P＞0.05）。
[Abstract]:Objective: to study the developmental characteristics of craniofacial structure in different sex population by Jarabak cephalometric analysis in normal Han nationality adolescents in Changchun area. To establish the normal value of Jarabak cephalometric analysis for normal occlusion adolescents in Changchun area, to provide reference value for the etiological mechanism and diagnostic design of orthodontists with malocclusion. To improve the quality and efficiency of orthodontic treatment. At the same time, promote the application of Roth-Williams orthodontic concept in Changchun area. Methods: through the survey of more than 1500 young people of right age in three middle and primary schools in Changchun area, 65 normal occlusion adolescents were selected, including 30 males and 35 females (mean age: male 14.07 卤1.72, female 14.34 卤1.43). Under the condition of natural head position, the lateral radiographs were taken for each of the subjects. The measurement markers of Jarabak cephalometric analysis method were fixed by manual method and WinCeph8.0 software, and the line distance composed of these markers was measured. Angle and line-distance ratio were used to get the measurement results. The SPSS17.0 statistical software was used to group the experimental data according to sex, and the test level was 0.05 for the experimental data. Results: in this study, the normal range of Jarabak cephalometric analysis of normal occlusion was obtained, and the statistical differences between male and female were compared. Through statistical analysis, we know that there is no significant difference in age of the selected subjects. There was no significant difference between male and female in dental and soft tissue measurement (P > 0.05). There was a significant difference in line distance between male and female (P < 0.01), and was larger in male than in female. The line distance ratio (Go-Me/S-N) had gender difference (P < 0.05), and the male was smaller than the female (P < 0.05). SN-GoGn (掳), the angle measurement index of mandibular plane angle, also had gender difference (P < 0.05), but the difference was not significant, the male was smaller than the female. There was no significant sex difference. Jarabak ratio, which was the ratio of posterior height to anterior height, was 70.92 卤4.23 for males and 67.53 卤4.12 for females. There was no significant gender difference (P > 0.05). Conclusion: the normal values of all indexes of Jarabak cephalometric analysis for normal occlusion of adolescents in Changchun area were established. There was no significant difference between male and female in sex of tooth and soft tissue in the analysis of head-shadow measurement of the ratio 1 Jarabak, and there was no significant difference between male and female in the sex distribution of the measurement index between male and female in Changchun area. In 2Jarabak cephalometric analysis, there was significant gender difference in line distance between males and females. In the angle measurement of 3Jarabak cephalometric analysis, the mandibular plane angle SN-GoGn( 掳) had gender difference (P < 0.05), and the male was smaller than female (.4Jarabak ratio), that is, the ratio of posterior height to anterior height was S-Go-N-Mean, the male was 70.92 卤4.23, and the female was 67.53 卤4.12, with no significant gender difference (P > 0.05).
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：R783.5

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