Can zircoina-based restorations be bonded with traditional silanating agents?

No, traditional silane primers do not bond to zirconia-based restorations. Special ceramic primers are necessary. Traditional silane primers are compatible with silica-based ceramics such as feldspathic porcelain, leucite-reinforced ceramic (for example, IPS Empress, Ivoclar Vivadent) and lithium disilicate ceramic (for example, IPS e.max, Ivoclar Vivadent).