Abstract

In this paper two aspects of dentine based dosimetry are investigated, namely the comparison of dentine and enamel native signal and the stability of the EPR spectrum after irradiation. Native signal intensity of dentine and enamel was found to be of the same order of the magnitude, suggesting that the origin of the native signal is not completely related to the total amount of organic component. Post-irradiation short life signals, with half-life of approximately 10 h, were observed. These signals are similar to those observed shortly after irradiation in enamel and after mechanical treatment in dentine.

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