Recording of mandibular movements by intraorally placed light emitting diodes.
Recording of mandibular movements by intraorally placed light emitting diodes.
复制标题
通过口腔内放置的发光二极管记录下颌运动。
DOI：
10.3109/00016357709055998
复制
发表时间：
1977
影响因子：
2
通讯作者：
S. Karlsson
中科院分区：
文献类型：
--
作者：
S. Karlsson
为了评估用于记录下颌运动的光电系统，进行了模拟器和临床试验研究。该方法是基于发光二极管（LED）和光电探测器系统。一个LED放在口腔内，一个放在额头上，后者作为参考。当光斑聚焦在探测器表面时，就会产生光电流。该电流可用于获得与LED的x和y坐标线性相关的两个信号。通过使用两个检测器，可以计算出运动的三维坐标，从而也可以计算出z坐标。仿真实验表明，该方法具有满意的精度和良好的重现性。临床试验结果表明，可以测量和记录下颌运动，而对测试者的外部影响最小。
In order to evaluate an opto-electronic system for recording mandibular movement a simulator and clinical pilot study was performed. The method was based on light emitting diodes (LED) and a photodetector system. One LED was placed intraorally and one on the forehead, the latter acting as reference. When the light spot is focused on the detector surface a photo-current will occur. This current can be used to obtain two signals linearly related to the x and y coordinates of the LED. By using two detectors the three-dimensional coordinates of a movement can be calculated, consequently also the z-coordinate. In the simulator experiment the method was shown to have a satisfactory precision and good reproducibility. The results from the clinical test indicated that it is possible to measure and record mandibular movement with a minimum of external influence to the test person.