Irradiation Effect of Pollution: Potassium-40 Element in Ceramco Dental Material

Abstract

Different types of materials were used for dental prosthetics restoration, including feldspathic ceramics, glass ceramics, zirconia-based ceramics, alumina-based ceramics, resin-based materials, and Ceramco. The possibility pollution of this material with radioactive elements were investigated by Veronese et al. (2006). In this study, dose rate of ⁴⁰K in Ceramco dental materials composition was determined by Fluka code. The dose levels for the 1 Bq activity of ⁴⁰K naturally present in it was calculated as 0.032 nGy/Bq. The annual dose in teeth and head are 1.01 and 3.07 mGy/annual respectively resulted from ⁴⁰K in Ceramco per one teeth filling. Although most of the measured values are below the recommended limits, results indicate the patients who show high ⁴⁰K values may be due to pollution. Potassium in Ceramco may be received higher dose levels than annual dose limit. Therefore the pollution of Ceramco to ⁴⁰K is important for mouth health.