The present invention is directed to a process for producing a sintered lithium disilicate glass ceramic dental restoration out of a porous 3-dim article, the process comprising the step of sintering the porous 3-dim article having the shape of a dental restoration with an outer and inner surface to obtain a sintered lithium disilicate ceramic dental restoration, the sintered lithium disilicate glass ceramic dental restoration comprising—Si oxide calculated as SiO2 from 55 to 80 wt.-%, —Li oxide calculated as Li2O from 7 to 16 wt.-%, —Al oxide calculated as Al2O3 from 1 to 5 wt.-%, and—P oxide calculated as P2O5 from 1 to 5 wt.-%, wt.-% with respect to the weight of the dental restoration, the sintering being done under reduced atmospheric pressure conditions, the reduced atmospheric pressure conditions being applied at a temperature above 600° C. The present invention is also directed to a kit of parts comprising a porous 3-dim article having the shape of a dental milling block and a respective instruction of use.
展开▼
机译:本发明涉及由多孔的3-dim制品生产烧结的二硅酸锂玻璃陶瓷牙科修复物的方法,该方法包括以下步骤:将具有牙科修复物形状的多孔的3-dim制品与外部的烧结物一起烧结。所述二硅酸锂玻璃陶瓷烧结体包括:-以55-80重量%的SiO 2计算的氧化硅,-以7-16重量%的Li 2 O计算的氧化锂。相对于牙齿修复体的重量,-以Al 2 O 3计算的Al氧化物为1-5wt .-%,以P 2 O 5计算的-P氧化物相对于牙齿修复体的重量为1-5wt.-wt%。在降低的大气压条件下进行的降低的大气压条件是在高于600°C的温度下施加的。本发明还涉及成套工具,其包括具有牙科铣削块形状的多孔3-dim制品和具有各自的使用说明。
展开▼