Zirconia and radioactivity: An in vitro study to establish the presence of radionuclides in dental zirconia.

The Journal of Prosthetic Dentistry
Aritza Brizuela-VelascoMarkel Diéguez-Pereira

Abstract

Dental zirconia possesses concentrations of radionuclides, but their possible radioactivity is unknown. The purpose of this in vitro study was to evaluate the radioactivity and radionuclide concentration in dental zirconia. Three specimens were obtained from commonly used dental yttria-stabilized tetragonal zirconia polycrystal materials: Vita In-Ceram YZ, Zirkonzahn, and Zirkonzahn Prettau-producing a powder for the evaluation of radioactivity through gamma spectrometry. For the determination of radioactivity, a group of radionuclides (Ac-228, Pb-212, Tl-208, Pb-214, Bi-214, and Be-7) was evaluated. The measurements of all the specimens reported that most activity came from the decay chain of uranium, radium, and thorium, obtaining a radioactivity of 11.082 Bq/kg for Vita In-Ceram YZ, <11.63 Bq/kg for Zirkonzahn, and <34.91 Bq/kg for Zirkonzahn Prettau. Although all specimens contained radionuclides, their radioactivity was below the limit established by the International Atomic Energy Agency.

References

Dec 1, 1996·Journal of Biomedical Materials Research·J PorstendörferH C Willert
Jan 23, 1999·Biomaterials·C Piconi, G Maccauro
Mar 15, 2001·Biomaterials·J L IrigarayV Brun
May 1, 1997·Journal of Materials Science. Materials in Medicine·I DionP Havlik
Jul 1, 2014·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Sheila Pestana PassosCarlos Flores-Mir
Jun 30, 2016·Implant Dentistry·Aritza Brizuela-VelascoGorka Santamaría-Arrieta
Jul 30, 2016·Journal of the Mechanical Behavior of Biomedical Materials·G K R PereiraL F Valandro
Jan 30, 2019·Acta Informatica Medica : AIM : Journal of the Society for Medical Informatics of Bosnia & Herzegovina : časopis Društva Za Medicinsku Informatiku BiH·Arif RachmanLatief Mooduto

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