Naslov
In vitro release of metal ions from a gold-platinium alloy in saliva - simulated conditions

Autori
Baučić, Maja ; Čelebić, Asja ; Stipetić, Jasmina ; Mehulić, Ketij ; Božić, Darko

Izvornik
Collegium Antropologicum (0350-6134) 27 (2003), Suppl 2; 91-98

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
gold-platinium dental alloy; ion release; saliva pH

Sažetak
The aim of this study was to evaluate the behavior of high-noble gold-platinum alloy samples (18 + 8 Rafinerija plemenitih kovina, Zagreb, Hrvatska), in a phosphate buffer pH 6.0. The aim of the study was to determine the type and amount of released metal ions from the alloy, and to evaluate how the time of exposure to the phosphate buffer pH 6.0 influences the release of metal ions from the alloy. Manufacturer samples 8.0 x 6.5 x 1.0 mm in size, with a surface area of 133 mm2 were used. The release of metal ions from the tested alloy was measured in ten time periods (after 1, 2, 3, 4, 5, 6, 7, 14, 21 and 30 days). Six samples were used (n = 6) for each time period that the alloy was in the solution, which means that a total of 60 samples was analyzed. Solutions, in which the samples were placed, were analyzed with the inductively coupled plasma atomic emission spectrometer (ICP-AES, JY 50P, Jobin-Ywon, France). It was found that four metal ions were released ; zinc ions (Zn), chromium ions (Cr), copper ions (Cu) and iron ions (Fe). The most released ions from the gold-platinum alloy were those of zinc (Zn), and the least released were those of iron (Fe) (p < 0.01). The results of the study show that the time the tested alloy spent in the phosphate buffer pH 6.0 solution has an effect on the release of ions (p < 0.01).

Izvorni jezik
Engleski

Znanstvena područja
Dentalna medicina

POVEZANOST RADA