公开(公告)号：EP4234505A3

公开(公告)日：2024-02-14

申请号：EP23174516.7

申请日：2019-10-28

申请人： Hass Co., Ltd.

发明人： Lim, Hyung Bong ,  Kim, Yong Su ,  Oh, Kyung Sik ,  Hong, Young Pyo ,  Kim, Sung Min ,  Kim, Joon Hyung ,  Son, Si Won ,  Kim, Yena

IPC分类号： C03C3/085 ,  A61C13/08 ,  A61C13/083 ,  C03B33/02 ,  C03C3/097 ,  C03C10/00 ,  A61C13/00 ,  C03B32/02

摘要： Disclosed is a dental bulk block for grinding processing. The dental bulk block includes a crystalloid, which includes lithium disilicate as a main crystal phase and silicate as a sub-crystal phase, and hyaline as a remainder. The dental bulk block is a functionally gradient material having a crystalline size gradient according to which the crystalline size continuously increases from a lower end to an upper end of the block. The upper end of the block is configured to form the gingival side of an artificial tooth restoration material and the lower end of the block is configured to form the incisal side of the artificial tooth restoration material. The functionally gradient material has an average particle diameter within a range of 5 nm to 5.5 µm. The dental bulk block is manufactured using a same glass composition, wherein the same glass composition includes 60 to 83 wt% of SiO 2 , 10 to 15 wt% of Li 2 O, 2 to 6 wt% of P 2 O 5 , 1 to 5 wt% of Al 2 O 3 , 0.1 to 3 wt% of SrO, 0.1 to 2 wt% of ZnO, 1 to 5 wt% of a colorant, and 2.5 to 6 wt% of a mixture of Na 2 O and K 2 O.

公开(公告)号：EP4234505A2

公开(公告)日：2023-08-30

申请号：EP23174516.7

申请日：2019-10-28

申请人： Hass Co., Ltd.

发明人： Lim, Hyung Bong ,  Kim, Yong Su ,  Oh, Kyung Sik ,  Hong, Young Pyo ,  Kim, Sung Min ,  Kim, Joon Hyung ,  Son, Si Won ,  Kim, Yena

IPC分类号： C03C10/00

摘要： Disclosed is a dental bulk block for grinding processing. The dental bulk block includes a crystalloid, which includes lithium disilicate as a main crystal phase and silicate as a sub-crystal phase, and hyaline as a remainder. The dental bulk block is a functionally gradient material having a crystalline size gradient according to which the crystalline size continuously increases from a lower end to an upper end of the block. The upper end of the block is configured to form the gingival side of an artificial tooth restoration material and the lower end of the block is configured to form the incisal side of the artificial tooth restoration material. The functionally gradient material has an average particle diameter within a range of 5 nm to 5.5 µm. The dental bulk block is manufactured using a same glass composition, wherein the same glass composition includes 60 to 83 wt% of SiO 2 , 10 to 15 wt% of Li 2 O, 2 to 6 wt% of P 2 O 5 , 1 to 5 wt% of Al 2 O 3 , 0.1 to 3 wt% of SrO, 0.1 to 2 wt% of ZnO, 1 to 5 wt% of a colorant, and 2.5 to 6 wt% of a mixture of Na 2 O and K 2 O.

公开(公告)号：EP3744696A1

公开(公告)日：2020-12-02

申请号：EP19205590.3

申请日：2019-10-28

申请人： Hass Co., Ltd.

发明人： Lim, Hyung Bong ,  Kim, Yong Su ,  Oh, Kyung Sik ,  Hong, Young Pyo ,  Kim, Sung Min ,  Kim, Joon Hyung ,  Son, Si Won ,  Kim, Yena

IPC分类号： C03C3/085 ,  A61C13/08 ,  A61C13/083 ,  C03B33/02 ,  C03C3/097 ,  C03C10/00

摘要： Disclosed is a dental bulk block for grinding processing. The dental bulk block includes a crystalloid, which includes lithium disilicate as a main crystal phase and silicate as a sub-crystal phase, and hyaline as a remainder. The dental bulk block is a functionally gradient material having a crystalline size gradient with respect to a depth thereof and having no interface at a change point of a crystalline size gradient value. The dental bulk block is useful for manufacturing an artificial dental prosthesis that is similar to natural teeth. Accordingly, the time and process for manufacturing the artificial dental prosthesis are shortened, and structural stability is increased in terms of dispersion of force due to gradient functionalization of mechanical properties.