Parissis N, Iakovidis D, Chirakis S, Tsirlis A
School of Dentistry, University of Thessaloniki, Greece.
Aust Dent J. 1994 Jun;39(3):184-7. doi: 10.1111/j.1834-7819.1994.tb03090.x.
The purpose of this study was to measure and classify the radiopacity of various elastomeric impression materials available on the open market and to compare their appearance in radiographs of the oral tissues. In order to measure and classify their radiopacity, twenty-eight specimens of various materials were placed and exposed on film together with an aluminium stepwedge. A dummy head was used to investigate the radiographic density of the above specimens in comparison with that of simulated oral tissues.
本研究的目的是测量并分类公开市场上各种弹性印模材料的射线不透性，并比较它们在口腔组织X光片中的影像表现。为了测量并分类它们的射线不透性，将28个不同材料的样本与一个铝质楔形梯一起放置在胶片上并进行曝光。使用一个仿人头模型来研究上述样本与模拟口腔组织在X光片上的影像密度。
