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用电子顺磁共振（ＥＳＲ）技术对两种常用假牙材料（聚甲基丙烯酸甲酯和拜耳树脂）的剂量学特性研究结果如下：在０～２０Ｇｙ６０Ｃｏγ射线照后，两种材料中均被诱发出新的信号，其ｇ值范围为１．９９４２～２．０１４４。聚甲基丙烯酸甲酯在上述剂量范围内信号强度对照射剂量呈线性响应（ｒ＝０．９７），且信号线宽也随剂量有明显变化。而拜耳树脂在８Ｇｙ以下响应呈正相关，而后响应出现饱和。如照后即刻测量，两种材料可测量下限均不大于２Ｇｙ。在人体体温３７℃下，信号２４ｈ后平均衰减４０％，而后的一周内衰减较慢，约１０％。如照后低温（－２５℃）保存，衰减速度可大大减低，一周内总衰减约２５％－３０％。上述结果表明，如能在事故后及早测量或低温保存样品，两种常用假牙材料都具有充当辐射事故剂量ＥＳＲ检测材料的可能性。其中拜耳假牙难以用于８Ｇｙ以上剂量范围。
The results of the dosimetry studies of two commonly used denture materials (polymethylmethacrylate and Bayer resin) by the electron paramagnetic resonance (ESR) technique were as follows: After 0 to 20 Gy of 60Co γ-ray irradiation, both materials were induced The new signal, the g value range of 1.9942 ~ 2.0144. Polymethylmethacrylate showed a linear response to the dose (r = 0.97) over the above dose range, and the signal line width also varied significantly with dose. The Bayer resin in the 8Gy response was positively correlated, and then respond to saturation. As measured immediately after the photo, the two materials can measure the lower limit of not more than 2Gy. At a body temperature of 37 ° C, the signal decays 40% on average after a 24-hour period and decays slowly by about 10% during the following week. Such as the preservation of low temperature (-25 ℃), the decay rate can be greatly reduced, the total attenuation of about 25% -30% within a week. The above results indicate that both of the commonly used denture materials have the potential to act as radiation accident dose ESR test materials if samples can be measured early or after cryogenic storage. Bayer denture is difficult to use for more than 8Gy dose range.