[The results of toxicological research on dental alloys containing Ni, Cr and Co using the implantation method]. / Rezul'taty toksikologicheskogo issledovaniia stomatologicheskikh splavov, soderzhashchikh Ni, Cr, Co, metodom implantatsii.

Biocompatibility of 7 dentistry alloys containing 5 do 70% of Ni but not containing Be was studied by implantation of these alloys into femoral muscles of 360 white rats. Tissue directly adjacent to alloy samples, regional lymph nodes, and viscera were under study. The detected changes were approximately similar in different animal groups and similar to the changes in the reference group, this permitting the authors to consider the suggested allows biologically indifferent.

[An electron probe x-ray microanalysis of dental alloys]. / Elektronno-zondovyi rentgenovskii mikroanaliz nekotorykh stomatologicheskikh splavov.

Electron probe x-ray microanalysis of 3 commercial cobalt-chromium-based alloys, CCA (USSR), Biosil and Vakukast (FRG), has revealed that CCA is initially heterogenic, this being explained, probably, by elevated chromium content. Biosil and Vakukast are similar in composition and represent a matrix with eutectic insertions of intermetallides and a small amount of oxides. Physical and mechanical characteristics of these alloys are described.