Kundert M
J Oral Rehabil. 1979 Oct;6(4):375-83. doi: 10.1111/j.1365-2842.1979.tb00418.x.
The present study investigated to what extent condyle positions have to be different from each other in order to be clearly detectable under clinical conditions on serial radiographs of the temporomandibular joints in identical projection. For that purpose of ten test subjects serial radiographs in optimal lateral oblique and identical projection were made with various positions of the joint. The joint was brought to these positions by displacement of the mandible to an exactly known extent with a special device. Evaluation showed that mean differences between condyle positions of 0.61 +/- 0.16 mm can be recognized clearly. It was statistically proved that this value did not depend upon the experience of an examiner in reading radiographs but upon the technical quality and the interpretability of the radiographs as well as upon the radiographic dimension of the posterior joint space.
本研究调查了在颞下颌关节的系列X线片上，髁突位置在相同投照下要达到何种程度的差异才能在临床条件下被清晰检测到。为此，对10名受试对象使用特殊装置将下颌骨精确移位到不同程度，从而使关节处于不同位置，拍摄了最佳侧斜位且投照相同的系列X线片。评估显示，髁突位置的平均差异为0.61±0.16mm时能够被清晰识别。经统计学证明，该值并不取决于检查者解读X线片的经验，而是取决于X线片的技术质量、可解读性以及关节后间隙的X线片尺寸。
