Farman A G, Sharma S, George D I, Wilson D, Dodd D, Figa R, Haskell B
Radiology. 1985 Aug;156(2):523-6. doi: 10.1148/radiology.156.2.4011918.
Models were constructed to simulate as closely as possible the human oral cavity. Radiation absorbed doses were determined for controls and various test situations involving the presence of dental restorative and splint materials during cobalt-60 irradiation of the models. Adjacent gold full crowns and adjacent solid dental silver amalgam cores both increased the dose to the interproximal gingivae by 20%. Use of orthodontic full bands for splinting the jaws increased the dose to the buccal tissues by an average of 10%. Augmentation of dose through backscatter radiation was determined to be only slight for intracoronal amalgam fillings and stainless steel or plastic bracket splints.
构建模型以尽可能逼真地模拟人类口腔。在对模型进行钴 - 60 辐照期间，测定了对照组以及涉及牙科修复材料和夹板材料存在的各种测试情况下的辐射吸收剂量。相邻的金全冠和相邻的实心牙科银汞合金核均使邻间牙龈的剂量增加了 20%。使用正畸全带夹板固定颌骨使颊侧组织的剂量平均增加了 10%。经测定，对于冠内汞合金填充物以及不锈钢或塑料托槽夹板，通过反向散射辐射增加的剂量仅为轻微。
