| abstract |
In order to decrease hydroscopic expansion of a resin-modified dental glass ionomer cement without losing high mechanical strength and adhesiveness to tooth structure and to lower a solubility, a dental cement consists of a liquid agent which includes a (meth)acrylate monomer having an acid group; a (meth)acrylate monomer having two or less hydroxyl groups and/or amino groups, not having an acid group, and having 160 or more molecular weight; water if necessary; and an amine compound as a polymerization initiator for a polymerization catalyst in a powder agent, and a powder agent which includes metal oxide powder used for fluoroaluminosilicate glass powder, dental zinc phosphate cement powder or dental carboxylate cement powder; and an organic aromatic compound and a peroxide, where the organic aromatic compound contains at least one -SO 2 - group as a polymerization catalyst. |