abstract |
A veneering ceramic for dental restorations made of yttrium-stabilized zirconium dioxide comprises, in mass percent: SiO 2 55.0-72.5; Nb 2 O 5 6.0-19.8; B 2 O 3 1.0-9.0; Al 2 O 3 1.2-6.0; Li 2 O 5.0-16.5; Na 2 O 1.4-11.0; ZrO 2 0.5-4.0, or comprises: SiO 2 58.0-68.0; Nb 2 O 5 10.0-19.8; Al 2 O 3 1.2-6.0; Li 2 O 8.0-16.5; Na 2 O 1.4-8.0; ZrO 2 0.5-4.0. |