Pre-sintered ceramic block used for dental restoration, its manufacturing method and its application

摘要

Examples of the present application disclose a pre-sintered ceramic block used in a dental restoration. The pre-sintered ceramic block has a low pre-sintering temperature, contains a silicon dioxide main crystal phase, but does not contain or contains a small amount of lithium metasilicate crystal phase, has a low hardness, has a Vickers hardness of 0.5-3 Gpa, and a lithium metasilicate crystal phase. It is sharply lower than the ceramic block it contains, making it suitable for dry machining when machined into dental restorations, and also for wet machining.