An adhesive composition for a denture base relining material which
comprises an organic solvent containing no halogen atoms such as ethyl
acetate, ethyl formate or acetone, a polymer such as a copolymer of
methyl methacrylate and ethyl methacrylate, and a radical polymerizable
monomer such as tetramethylolmethane tetramethacrylate; and a curable
composition which comprises a radical polymerizable monomer, an organic
peroxide such as benzoyl peroxide, a tertiary amine compound such as
diethyl-p-toluidine or dipropyl-p-toluidine, and a hydroxycarboxylic acid
such as malic acid or citric acid.The adhesive composition for a denture
base relining material does not contain a halogen-atom-containing organic
solvent whose harmful effect has been pointed out. Further, the
composition has satisfactory adhesive properties and good operability and
causes no degradation in the appearance of a denture base even if it
sticks to an area on the surface of the denture base other than a contact
area. The dental curable composition is widely used as dental materials
having little surface unpolymerized layer and good curability, e.g.,
dental cement, a composite resin, a resin for crown and a denture base
relining material.