engleski

Trace element release from two different base alloys under conditions of imitating oral saliva

We studied the metal ion release from Ni.Cr and Co-Cr-Mo dental alloy in a simulated oral saliva from one to thirty days. Co, Fe, Zn, Ni, and Cr were released from both dental alloys and to a different extent. The manufacturer didn't declare the presence of neither Ni, Zn and Fe from Co-Cr-Mo dental alloy, nor the release of Co and Zn from Ni-Cr dental alloy. The released amounts of Fe and Zn may only improve the subjects dietary status in respect to these elements, whereas Ni, Cr and Co are potent allergens which may impede the biological compatibility of the entire protethic structure in vivo.

Dental alloys; Co-Cr-Mo; Ni-Cr; ion release; simulated saliva; declared composition

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