Dimension stable binding agent systems for dental application

A chemically bound ceramic dentral filling material comprising a binder phase consisting of a cement based system, of which at least 70 volume-% consists of calcium aluminate cement in which the calcium aluminate has a grain size of 10 μm or less, characterized in that the material comprises one or more expansion compensating additives adapted to give the material long term dimensional stability properties, said additive or additives comprising ordinary Portland cement and/or some other organic Si-containing phase having a grain size of 0.5-10 μm and/or fine silica having a grain size of less than 100 nm, at a content of 1-20 volume-% of the material.