Es werden Lithiumsilikat-Glaskeramiken und -Gläser beschrieben, die sich in vorteilhafter Weise auf Zirkonoxidkeramiken insbesondere durch Aufpressen im viskosen Zustand aufbringen lassen und mit diesen einen festen Verbund bilden.Lithium silicate glass-ceramic comprises 8-16 wt.% zirconium dioxide and 0.5-3.5 wt.% aluminum oxide. Independent claims are also included for: (1) a lithium silicate glass comprising nuclei for the formation of lithium metasilicate and/or lithium disilicate crystals, where the glass contains the components of the glass ceramic; (2) a base glass containing the components of the glass ceramic; (3) a dental restoration which is coated with the glass-ceramic or glass; and (4) a zirconium oxide ceramic, which is coated with the glass-ceramic or a glass.