Dose Rate Measurements For Feldspathic Dental Ceramics

Objective: the aim of this study was to determine dose rate levels of 42 feldspathic dental ceramic powder samples (n=2) used for the production of prosthetic restorations in dentistry that were obtained from eight different manufacturers. materials-method: after preparing 10 grams of powder specimens from each dental ceramic sample, the dose rate measurements were performed by using an experimental setup with a portable, flat-window geiger-muller detector, which is able to detect α, β and γ radiations. ninety six hundreds measurement data were recorded for each specimen. net dose rate averages were determined in terms of alpha, beta, gamma and total dose rates. results: according to the dose rate measurements, it was found out that, the net total dose rate values of the samples were varied from 1.32 msv/y to 2.17 msv/y with an average of 1.76 msv/y. the contribution of the β dose rate to the total dose rate average was the greatest with 1.41 msv/y. this was followed by the γ and α dose rates of 0.21 msv/y and 0.14 msv/y respectively.