基于伊朗成年人样本中正常人群的软组织头影测量标准
Soft Tissue Cephalometric Standards based on NHP in a Sample of Iranian Adults.
作者信息
Ahangar Atashi Mohammad Hossein, Kachooei Mojgan
机构信息
Assistant Professor, Department of Orthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Iran.
出版信息
J Dent Res Dent Clin Dent Prospects. 2008 Spring;2(2):53-7. doi: 10.5681/joddd.2008.011. Epub 2008 Aug 15.
BACKGROUND AND AIMS
This study aimed to establish soft tissue cephalometric standards in Iranian adults based on NHP, which can be used in diagnosis of orthodontic and orthognathic patients.
MATERIALS AND METHODS
A group of 46 individuals (24 males and 22 females) with normal occlusion and proportional facial profile were chosen from a large group of dental students. For the all of the chosen sample, lateral cephalograms were obtained with head oriented in natural position. On the basis of the true horizontal and true vertical lines, the standard values of 19 soft tissue measurements were determined using McNamara, Burstone and Viazis methods.
RESULTS
In this study, the mean value of SN deviation to true horizontal line was 6.6°. Comparison between two genders showed that females have more obtuse nasolabial angle and thinner soft tissue chin than males (P < 0.05). Linear measurements showed that the overall size of males was more than females (P < 0.05).
CONCLUSION
Cephalometric norms based on NHP were found to be more reliable in orthognathic pa-tients.
背景与目的
本研究旨在基于北美白人正常牙合人群（NHP）建立伊朗成年人软组织头影测量标准，以用于正畸和正颌患者的诊断。
材料与方法
从一大群牙科学生中选取了一组46名个体（24名男性和22名女性），他们具有正常咬合和比例协调的面部轮廓。对于所有选定的样本，在头部处于自然位置时获取侧位头影测量片。基于真正的水平线和垂直线，使用麦克纳马拉、伯斯顿和维亚齐斯方法确定了19项软组织测量的标准值。
结果
在本研究中，SN与真正水平线的平均偏差为6.6°。两性之间的比较表明，女性的鼻唇角比男性更钝，软组织颏部比男性更薄（P < 0.05）。线性测量表明，男性的整体尺寸大于女性（P < 0.05）。
结论
发现基于NHP的头影测量标准在正颌患者中更可靠。
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