Two kinds of artificial tooth materials (polymethyl-methylacrylate abbreviated as PMMA and Bayer polymer) were investigated by detecting the characteristics of ,60,Co γ-ray induced ESR signals. The results are as follows: Both of the two materials have a dose related signal which located at a g-factor range of 1.9942~2.0144. The signal intensity of PMMA had a linear response to irradiation dose (r=0.97) in range of 0~20 Gy. The linewidth also varied along with the dose increment. Bayer polymer had a positive relative dose response below 8 Gy. The response would get saturation at doses higher than 8 Gy. The lowest detectable dose threshold for both of the two materials were about 2 Gy. The fading speed of the signal might be about 40% for the first 24 hours after irradiation if stored at imitated human body temperature (37℃) and it would get relatively stable when the samples were stored at lower temperature(-25℃). In this case, the fading speed might decreased to about 25%~30% during the first week. The above results suggests that artificial tooth materials of PMMA and Bayer polymer can be used as applicative ESR dosimetry materials for nuclear accidental dose evaluation.