PROBLEM TO BE SOLVED: To provide a 2 paste-type dental hardening composition that has clinically acceptable adhesion durability without using a primer, and has excellent adhesion strength after long-term storage and stability of paste properties.SOLUTION: The invention provides a 2 paste-type dental hardening composition composed of a first agent containing (a) a polymerizable monomer with an acidic group, (b) a polymerizable monomer without an acidic group, (c) a polymerization initiator, and (d) a filler and a second agent containing (b) the polymerizable monomer without an acidic group, (e) at least one kind of basic filler selected from the group consisting of a basic glass filler and alumina, (f) a polymerization promotor, and (g) a silane coupling agent represented by the following general formula [I] (where, Rrepresents an organic residue having at least one function selected from the group consisting of (meth) acryloyl group, vinyl group, and epoxy group Rrepresents a hydroxyl group, an alkyl group of carbon number 1-5, or an alkoxy group of carbon number 1-5 Rand Rrespectively represent a hydroxyl group, or an alkoxy group of carbon number 1-5 and at least one of R-Ris an alkoxy group of carbon numbers 2-5).SELECTED DRAWING: None
