Johari Masume, Esmaeili Farzad, Hamidi Hadi
Oral Radiology, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
Oral Radiology, Baghiatallah University, Tehran, Iran.
Open Dent J. 2017 Jun 30;11:375-383. doi: 10.2174/1874210601711010375. eCollection 2017.
To identify human skeletal remains, different methods can be used and using these techniques, important data can be obtained. However, facial reconstruction is the last method to indentify unknown human faces which requires knowledge about facial soft tissue thickness in the different positions of the face. The present study determined the facial soft tissue thickness in the different landmark points on the MRI images of patients referred to Radiology Department of Shahid Madani Hospital.
In this descriptive cross-sectional trial, MRI images of 179 patients (61 males, 118 females) in the age range of 18-76 years old who did not show any pathologic lesions, were selected. The measurements of the facial soft tissue were done on 12 landmark points on the midline area by two radiologist observers using specific software on the images. The differences in the soft tissue thickness in these landmark points were statistically analyzed by Mann-Whitney U (in term of gender) and Kruskal-Wallis tests (in terms of Body Mass Index [BMI] and age groups). P value less than 0.05 was considered statistically significant. The data were compared with the results of other studies.
The results obtained in the present study were higher than Turkish and American studies in most of the landmark points. Facial soft tissue thickness in most of the landmarks was more in males than females. In some of the landmarks, significant differences were found between emaciated, normal and overweight patients while in most cases, soft tissue thickness increased with the increased BMI. In some cases, significant differences were noted between soft tissue thickness values among the different age groups, in which the thickness increased or thinned with the increased age.
There were statistically significant associations between the presence and surface area of Haller cells and the occurrence of ipsilateral maxillary sinusitis. Neither the angulation of the uncinate process nor the size of the maxillary sinus ostium significantly correlates with the formation of maxillary sinusitis.
The data achieved in the present study can be used for the facial reconstruction purposes in the Iranian population; however, the slight differences existing between the studied population and other subgroup races must be considered for accurate reconstructions.
为了鉴定人类骨骼遗骸，可以采用不同的方法，运用这些技术能够获取重要数据。然而，面部重建是鉴定未知人脸的最后一种方法，这需要了解面部不同位置的面部软组织厚度。本研究测定了转诊至沙希德·马达尼医院放射科患者的MRI图像上不同标志点的面部软组织厚度。
在这项描述性横断面试验中，选取了179例年龄在18 - 76岁之间、未显示任何病理病变的患者（61例男性，118例女性）的MRI图像。两名放射科观察者使用图像上的特定软件，在中线区域的12个标志点上对面部软组织进行测量。通过曼 - 惠特尼U检验（按性别）和克鲁斯卡尔 - 沃利斯检验（按体重指数[BMI]和年龄组）对这些标志点处软组织厚度的差异进行统计学分析。P值小于0.05被认为具有统计学意义。将数据与其他研究结果进行比较。
本研究在大多数标志点获得的结果高于土耳其和美国的研究。大多数标志点处男性的面部软组织厚度大于女性。在一些标志点，消瘦、正常和超重患者之间存在显著差异，而在大多数情况下，软组织厚度随BMI增加而增加。在某些情况下，不同年龄组之间的软组织厚度值存在显著差异，其中厚度随年龄增加而增加或变薄。
哈勒氏细胞的存在和表面积与同侧上颌窦炎的发生之间存在统计学上的显著关联。钩突的角度和上颌窦口的大小与上颌窦炎的形成均无显著相关性。
本研究获得的数据可用于伊朗人群的面部重建；然而，为了进行准确的重建，必须考虑研究人群与其他亚组种族之间存在的细微差异。
