PORION AND CONDYLE AS CEPHALOMETRIC LANDMARKS - AN ERROR STUDY
PORION AND CONDYLE AS CEPHALOMETRIC LANDMARKS - AN ERROR STUDY
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DOI：
10.1016/0889-5406(88)90130-8
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发表时间：
1988-11-01
影响因子：
3
通讯作者：
ATTARZADEH, F
中科院分区：
文献类型：
--
作者：
ADENWALLA, ST;KRONMAN, JH;ATTARZADEH, F
随着近年来功能性矫治器在正畸治疗中的应用日益增多，髁突的生长在最终的治疗效果中起着重要的作用，正畸医生和研究人员应了解颅骨各组成部分的生长发育过程，以了解不同治疗阶段头影测量描记的变化。本研究旨在评估孔突和髁突在头颅侧位片上的可靠性。从塔夫茨大学的正畸科随机选择了24名患者。拍摄了两张矢状位X线片，一张在习惯性（正中）咬合时，另一张在嘴巴张开时。由两名观察者追踪每个头颅X线片，以确定追踪孔突和髁突部分的形状和位置的差异。Pearson积矩相关系数用于观察者间和观察者内的可靠性，用于在开口和闭口位置定位孔和髁突。结论：在闭口位矢状位X线片上不能准确和一致地定位孔和髁突。因此，最好先拍一张张口的头颅X线片，然后再将其复制到各自的闭口的头颅X线片上。这将提供更高的准确性和可靠性，在获得头影测量。
With the recent increase in the use of functional appliances for orthodontic treatment in which condylar growth plays an important role in the final results, orthodonitists and researchers should be aware of the process of growth and development of various components of the skull to see the changes of measurements on cephalometric tracings in different stages of treatment. This study was conducted to assess the reliability of the porion and condyle on the lateral cephalogram. A group of 24 patients was selected randomly from the Orthodonic Department at Tufts University. Two sagittal roentgenograms, one in habitual (centric) occlusion and one with the mouth wide open, were taken. Each cephalogram was traced by two observers to determine discrepancies in tracing the shape and position of the portion of the porion and condyle. The Pearson product-moment coefficient of correlation was performed for inter- and intraobserver reliability for locating the porion and condyle in open- and closed-mouth positions. It was concluded that the porion and condyle cannot be located accurately and consistently on sagittal roentgenograms in the closed-mouth position. Therefore it appears advisable to obtain an open-mouth cephalogram and superimpose it onto the respective closed-mouth cephalogram. This will provide greater accuracy and reliability in obtaining cephalometric measurements.