| abstract |
The present invention provides: a silicate glass which is capable of suppressing color change of zirconia even if the silicate glass is fired together with an unsintered zirconia at the same time, said zirconia serving as a base material; and a dental product which uses this silicate glass. The present invention relates to: a silicate glass which contains 65.0-90.0 mol% of SiO 2 , 4.0-15.0 mol% of Al 2 O 3 , 1.0-10.0 mol% of K 2 O, 0.1-7.0 mol% of Na 2 O and 0.01-15.0 mol% of CaO, while substantially containing no B 2 O 3 , and wherein (number of moles of Al 2 O 3 )/(total number of moles of RO and R 2 O) is 0.70 or more, with R in the metal oxide represented by RO being a group 2 or group 12 metal element of the periodic table, and with R in the metal oxide represented by R 2 O being a group 1 metal element of the periodic table; a composite body which contains this silicate glass and a base material that is composed of a ceramic; a sintered body which is obtained by firing this composite body; and a dental product which is composed of this sintered body. |