Martonffy K
Fogorv Sz. 1989 Jul;82(7):207-10.
The long cone and its belonging film holder-centralizing system made by the Kentzler-Kaschner Dental GmbH (Ellwangen-Jagst, GFR) is well suitable to the right-angle technique. The system can simply be adapted to a number of X-ray apparatus. These technique decreases the distortion, the magnification and the radiation dose, increases the contrast of the pictures. The pictures are well reproducable.
由肯茨勒-卡斯chner牙科有限公司（德国埃林根-雅格斯特）制造的长锥形及其配套的胶片夹对中系统非常适合直角技术。该系统可以很容易地适配多种X射线设备。这种技术减少了失真、放大率和辐射剂量，增加了图像的对比度。图像具有良好的可重复性。
