Patel Dolly P, Trivedi Rahul
Department of Orthodontics, Govt. Dental College and Hospital, Ahmedabad, Gujarat, India.
Indian J Dent Res. 2013 Sep-Oct;24(5):587-92. doi: 10.4103/0970-9290.123378.
In a developing country like India, where expensive cephalometric apparatus is unavailable everywhere, photography assumes importance for diagnostic and treatment planning procedures as it is low cost and less technique sensitive.
The aim of this study was to compare and correlate craniofacial measurements from cephalometric radiographs with analogous measurements from standardized facial photographs in the Gujarati population.
The study was carried out using standardized cephalometric radiographs and photographs of 60 Gujarati subjects (30 males, 30 females). Eight facial landmarks were identified on both the photograph and cephalogram. Five angular and three linear measurements were created from these landmarks and planes.
The Pearson correlation coefficient was used to estimate the correlations between the photographic and cephalometric variables. The intraclass correlation coefficient (ICC) was estimated to measure the reliability of the repeated tracings.
On comparing the cephalometric and photographic variables for the entire sample, positive and significant correlations were found for all the variables studied (r > 0, P < 0.05). The ICCs for all of the angular measurements were higher than those for linear measurements.
Photographs may be used reliably for epidemiological purposes, screening, initial consultations and cases where irradiation is contraindicated or needs to be avoided.
在像印度这样的发展中国家，昂贵的头颅测量设备并非随处可得，而摄影因其成本低且对技术要求不高，在诊断和治疗计划程序中具有重要意义。
本研究的目的是比较古吉拉特人群中头颅侧位X线片的颅面测量值与标准化面部照片的类似测量值，并进行相关性分析。
该研究使用了60名古吉拉特受试者（30名男性，30名女性）的标准化头颅侧位X线片和照片。在照片和头颅侧位片上均确定了8个面部标志点。从这些标志点和平面创建了5个角度测量值和3个线性测量值。
采用Pearson相关系数估计摄影变量与头颅测量变量之间的相关性。采用组内相关系数（ICC）评估重复描记的可靠性。
对整个样本的头颅测量变量和摄影变量进行比较时，所有研究变量均发现正相关且具有显著性（r>0，P<0.05）。所有角度测量的ICC均高于线性测量的ICC。
照片可可靠地用于流行病学目的、筛查、初次会诊以及禁忌或需要避免辐射的病例。
