Abstract
A nuclear analytical technique, namely instrumental photon activation analysis (IPAA), was used to determine Sr and Ca concentrations in human teeth. This work was conducted using the first accelerator facility, an off-shelf clinical linear accelerator (cLINAC), in Turkey. The tooth samples supplied by the Akdeniz University Faculty of Dentistry were analyzed for determination of the Sr/Ca element ratio. The results were obtained to demonstrate the impact of socioeconomic changes on dietary habits. A calibration material (CM; a mixture of calcium and strontium oxides) was required for quantification of the analytical results. The tooth samples, together with the CM, were exposed to 18 MeV end-point energy bremsstrahlung photons from the cLINAC. Thereafter, the γ-ray spectra of the samples and the CM were obtained using high resolution γ spectroscopy. Variations in the Sr/Ca ratio in the teeth of patients fed with beef and fizzy beverages were investigated in this study.
Acknowledgments
The authors would like to thank Ahmet Ünlü, Dr. Tserenpil Shurkhuu, Akdeniz University Faculty of Dentistry and its staff for all the support and help, Assoc. Prof. Dr. Edip Bayram, Çağdaş Kızıl for help in the collection and preparation of the teeth samples, Akdeniz University Chemistry department for its support and generous access to their facilities, and many members of the Akdeniz University Nuclear Research and Application (NUBA) Center for their help with irradiation, gamma-spectroscopy and fruitful discussions.
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